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Who still uses a T520 as a daily driver. And why ?

T400/T410/T420 and T500/T510/T520 Series
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Eugor
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Who still uses a T520 as a daily driver. And why ?

#1 Post by Eugor » Sat Sep 25, 2021 1:05 pm

I am curious about those using T520 as their main machine. Reasons why, advantages, disadvantages, what you use it for etc.

Thanks

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Re: Who still uses a T520 as a daily driver. And why ?

#2 Post by theterminator93 » Sat Sep 25, 2021 8:46 pm

I don't suppose I fully qualify, but maybe partially?

I use a W520 at least twice daily - for about 30 minutes in the morning and 30-60 minutes in the evening. It's the direct replacement I got after I retired my T61p, which I bought new in late 2007, in 2015. I had previously bought a T420 in an attempt to have it be the replacement but the drastically lower screen resolution was a huge detractor and was the main reason why I moved up to the W520. I was an early recipient of one of the FHD IPS kits for the T420, but it's buggy and that system gets turned on and used barely at all anymore. I eventually shoehorned a FHD IPS panel into the W520, but that's another story.

Anyway - the W520 I keep around for a few reasons, the most prominent of which is the keyboard.

I've typed on the classic ThinkPad 7-row keyboard layout for over 20 years and nothing else feels right to me. Having 4 CPU cores, the discrete GPU, 32GB RAM and 2 slots to use for storage give it great versatility for anything I may need to do with it. I still edit and export videos from it on occasion - though 90% of my time on it is either general web-based tasks or going through old media I have on my server.

It is 10 years old now, though. The CPU does have to work hard to render content and the battery life isn't all that great. Even with the fabled 9-cell Panasonics I have hoarded for it, the CPU has to work pretty hard to process dynamic web content nowadays and the Sandy Bridge CPUs are hungry when they work hard. It's bulky and I don't take it with me most of the time unless I have a compelling reason to - I usually bring my T25/T480 FrankenPad.

Despite all that, it meets the need for how it's being used and I'm not likely to retire it from its current purpose. I grabbed a lightly-worn T520 from the 'spare/disposal' stash just to be sure I have parts for it later on, as well.
T480 with T25 keyboard | T25 | W520 i7-2860QM·Quadro 2000m·IPS FHD | T601F T9900·NVS 140m·LED AFFS UXGA
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Re: Who still uses a T520 as a daily driver. And why ?

#3 Post by TPFanatic » Sat Sep 25, 2021 11:28 pm

I use its little sibling, the T420 personally but also have some T520 experience. I'm sure you've reached the same conclusion as you're using the T520 that these machines are highly capable today, esp. T520 with the FHD screen option, and T420 with the IPS mods (esp. QHD). The only disadvantage I'm running into is the lack of native USB 3.0, although my cheap Expresscard 34 2x USB 3.0 helps. I do use the eSATA (which disappeared after this generation). None of the T520's in my life had a built in eSATA port but all the T420's do, this is a port I like very much.

T520 beats the T420 in having enough thermal overhead to handle the Quad Cores. A T520 with a quad and the dGPU heatsink (with or without dGPU) performs excellently for video processing and 3D gaming with an eGPU, no throttling at all.
lenovo T420 i5 2520m 16GB QHD w/ eGPU GTX 960
lenovos T520 i7 2720qm 8GB FHD, T420s i5 3320m 8GB QHD, T430 i5 3320m 8GB FHD, T430 i5 3320m 8GB FHD w/ Optimus, S1 Yoga i7 4600u 8GB FHD
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Re: Who still uses a T520 as a daily driver. And why ?

#4 Post by dr_st » Sun Sep 26, 2021 7:08 am

I still have an even smaller sibling - X220 - which is sort-of used as a daily driver: watching shows and light gaming when attached to the TV, or light browsing on-the-go. It is still perfectly usable, both with Win7 and Win8.1, although it does get hot during certain heavy tasks...

Compared to the T420/T520 it does have native USB 3.0 (it's the i7 version), which is awesome, but no eSATA. eSATA is a cool port, but I never used it. If it had been ubiquitous on every computer, as USB is, I probably would have.

I originally bought this X220 when it became clear that the 7-row keyboard is gone. At the time it seemed like the last laptop with both a 7-row and an IPS screen. This was before the community figured out the classic keyboard mod for **30 series, and the IPS screen mods, and of course before Thinkpad 25. For almost 3 years, the X220 had been my primary personal laptop, before I got the modded T430s in my signature.
Thinkpad 25 (20K7), T490 (20N3), Yoga 14 (20FY), T430s (IPS FHD + Classic Keyboard), X220 4291-4BG
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Re: Who still uses a T520 as a daily driver. And why ?

#5 Post by TPFanatic » Sun Sep 26, 2021 11:29 pm

I owned an X220 for a short while, it was actually an X230 base and planar but everything else palmrest and up came from an X220 with a water-dead motherboard. I'd mail-ordered both the broken X220 and the X230 base just to throw the two together as a fun little project. By luck the dead X220 had a perfect IPS screen. For better or worse I wound up giving the machine away a couple years back, and I have no idea its current status or fate. It was a cute little mini Frankenpad but if I wanted to own another one, I'd want one of the 51nb hi-DPI contraptions, of which I would actually prefer the X201 body.
lenovo T420 i5 2520m 16GB QHD w/ eGPU GTX 960
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Re: Who still uses a T520 as a daily driver. And why ?

#6 Post by Rletson » Mon Sep 27, 2021 5:46 pm

My wife's home machine is a T520 we got second-hand to replace her R52, and it has enough oomph to handle her on-line teaching, which was her primary mode for a year after the university suspended in-person classes. I like it enough to have acquired a second, very clean unit and a docking station to serve as backup in case either of our primary computers should go down. (Mine is a Lenovo tower.) She doesn't mind the laptop-size screen, but I'm addicted to dual monitors and my old Gateway keyboard and Logitech trackball, so if I have to switch to a 520, I'll just plug in my familar peripherals and a backup external drive into the dock and continue working.

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Re: Who still uses a T520 as a daily driver. And why ?

#7 Post by kfzhu1229 » Mon Sep 27, 2021 10:59 pm

I have probably the most unhealthy T520 that is ever put to daily use...
It has a motherboard with NVS 4200M but with a fried power management chip (doesn't charge battery), fried RTC circuit so time resets every time the charger is unplugged, no matter if the CMOS battery has charge. I talked about the tragedy story of how the T520 arrived at this poor shape far too much.
All put inside a chassis with badly worn palmrest, keyboard that I have to fix to get all keys to work, and a 768p display swapped out of a Latitude E6520.
Then equip it with an okay i5-2520m, but puny 32GB mSATA SSD and a small 40GB SATA HDD, and hook it up to our TV with a Displayport to HDMI cable, this is probably the most cost effective TV box setup that I can have.
Streams all sorts of places perfectly, and the SSD that I otherwise has no use for is still plenty fast.
Our family use it on a daily basis to play YouTube, Netflix and many legit and pirated video services. The point is to squeeze as much life out of those poor components as we possibly can so I can feel less bad about accidentally frying that motherboard so prematurely.
Dell Lat CP MMX-233 64mb 40gb W2k
600 PII-266 416mb 40gb WXP
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Re: Who still uses a T520 as a daily driver. And why ?

#8 Post by atagunov » Tue Sep 28, 2021 9:05 am

My T520 is sufficient to remote into work. I'm fine with how much space it's taking on my desk - a lot less than the desktops it has replaced. With SSD, 16Gb of RAM and a docking station with a 27" 16:10 desktop monitor plugged into it it's seriously fine. Old Microsoft natural keyboard and G502 mouse are finishing the setup. This T520 lives its life with lid closed and power adapter connected most of the time. And if I need to go on vacation but still have a machine to remote into work if need be - my T520 goes with me. Because it is fully configured for the job. Obviously I only use it indoors - the screen is not bright enough for the sun.

My 2nd T520 is serving general duty at home - online shopping, etc. Because main home PC is Windows and I don't trust windows with bank card numbers. I believe Linux is less common and so has less malware targeting it. That T520 is also sufficient for the duty. It's sturdy enough to survive daily grind, has large enough screen, nice enough keyboard.

Sufficient. That's why.
X220, 2 *T520

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Re: Who still uses a T520 as a daily driver. And why ?

#9 Post by mikemex » Wed Sep 29, 2021 1:42 am

I don't have a T520 but I have a T530 and a W530. I've never used either as my main machine; I realized long time ago that a big laptop is a poor compromise; too big to be really portable and too small to compete with a desktop in terms of ergonomics and power.

I have the W530 because I needed a machine in the mechanical shop and a desktop would be too inconvenient to put in storage when I need to make space for work. With a laptop I can just fold it and put it in the cabinet when not in use, so it doesn't need a dedicated space like a desktop would.

The T530 was just an impulse buy. I think I got it for $50 or so and I decided it was too good to pass. I've used it little because it's a basic version with the low resolution screen. With a better processor and a FHD screen I would consider getting rid of the W530, mostly because battery life is a joke, it overheats when you really push it and you need to carry a very large and heavy charger. The AutoCAD version I run on the W530 is very old and pretty much runs on anything, so there is very little need for the (outdated) Quadro graphics card. The W530 supports more RAM (up to 32GB) but with four modules RAM speed is also much lower and frankly speaking, I've never been even close to use 16GB; much less the 24GB I have installed.

Every model in the Sandy Bridge generation has broken power management support. It's a known problem and it seems like they never fixed it. That newer models offer you more battery life has a lot to do with intel working with manufacturers on improving power management implementation. For example, on my T420s C0 percentage (CPU wake/activity) remains around 40-50%. On my X1 Carbon, it can go down to about 2-3%.
Main (x2): 6700 | RX170Q | 32GB | 1TB SU800 | 4TB HD | Radeon 7850 | 21.5 FHD
X301: SU9600 | 8GB | 400GB S3610
T420s: 2640m | 16GB | 128GB PM831 | HD+ 4200M | FP | BT
W530: 2740qm | 24GB | 1TB SU800 | FHD K1000M | FP | BT
X1C4: 6600U | 16GB | 512GB SM951 | WQHD
(soon to be sold) X220 | T420 | T530

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Re: Who still uses a T520 as a daily driver. And why ?

#10 Post by dr_st » Wed Sep 29, 2021 2:38 am

mikemex wrote:
Wed Sep 29, 2021 1:42 am
Every model in the Sandy Bridge generation has broken power management support. It's a known problem and it seems like they never fixed it. That newer models offer you more battery life has a lot to do with intel working with manufacturers on improving power management implementation. For example, on my T420s C0 percentage (CPU wake/activity) remains around 40-50%. On my X1 Carbon, it can go down to about 2-3%.
Interesting. Which tool do you use to test C-state residency? I'd like to compare my Sandy Bridge and Ivy Bridge laptops.
Thinkpad 25 (20K7), T490 (20N3), Yoga 14 (20FY), T430s (IPS FHD + Classic Keyboard), X220 4291-4BG
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad

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Re: Who still uses a T520 as a daily driver. And why ?

#11 Post by kfzhu1229 » Wed Sep 29, 2021 11:45 am

mikemex wrote:
Wed Sep 29, 2021 1:42 am
The T530 was just an impulse buy. I think I got it for $50 or so and I decided it was too good to pass. I've used it little because it's a basic version with the low resolution screen. With a better processor and a FHD screen I would consider getting rid of the W530, mostly because battery life is a joke, it overheats when you really push it and you need to carry a very large and heavy charger. The AutoCAD version I run on the W530 is very old and pretty much runs on anything, so there is very little need for the (outdated) Quadro graphics card. The W530 supports more RAM (up to 32GB) but with four modules RAM speed is also much lower and frankly speaking, I've never been even close to use 16GB; much less the 24GB I have installed.

Every model in the Sandy Bridge generation has broken power management support. It's a known problem and it seems like they never fixed it. That newer models offer you more battery life has a lot to do with intel working with manufacturers on improving power management implementation. For example, on my T420s C0 percentage (CPU wake/activity) remains around 40-50%. On my X1 Carbon, it can go down to about 2-3%.
Well the W530 would already be one of the lighter machines of Ivy bridge workstations... It's feathers compared to its competition, like the Precision M4700 or the Elitebook 8570w. But while the latter two can use much newer mxm graphics cards, the W530 cannot with it having a soldered GPU...
The same heatpipe design for Sandy bridge and Ivy bridge laptops just doesn't work particularly well when you have a discrete GPU. Whenever you have a 45W CPU, the thermals would be pushed to the absolute limits with turbo boost enabled at the best of the cases, and other times it just reaches 90+C and it's just painful to watch...
Interesting observation for the Sandy bridge having flawed power management support. Does Ivy bridge machines get affected as well if they are equipped with a Sandy bridge CPU instead?
Dell Lat CP MMX-233 64mb 40gb W2k
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
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Re: Who still uses a T520 as a daily driver. And why ?

#12 Post by mikemex » Wed Sep 29, 2021 10:03 pm

dr_st wrote:
Wed Sep 29, 2021 2:38 am
Interesting. Which tool do you use to test C-state residency? I'd like to compare my Sandy Bridge and Ivy Bridge laptops.
Throttlestop has C-state monitoring, both at core and package level.
kfzhu1229 wrote:
Wed Sep 29, 2021 11:45 am
Does Ivy bridge machines get affected as well if they are equipped with a Sandy bridge CPU instead?
Other than the upgraded GPU, Ivy Bridge is pretty much Sandy Bridge in 22nm. I think intel started to get it right with Haswell. That's why the mobile CPUs in that generation moved down to 15W TDP.

When intel began integrating the NorthBridge / GPU functions into the CPU package / die, it essentially cut power consumption in half. You can't then explain why Core i series not only didn't reduce the TDP from Montevina, but it actually increased, only to get back to their expected level in later generations. The only possible explanation is that the first iterations of the Core i shipped broken and intel just used it's huge user base as guinea pigs.

The folks at Coreboot should investigate the issue. Maybe it's possible to fix the high consumption levels in Sandy Brige et. al.
Main (x2): 6700 | RX170Q | 32GB | 1TB SU800 | 4TB HD | Radeon 7850 | 21.5 FHD
X301: SU9600 | 8GB | 400GB S3610
T420s: 2640m | 16GB | 128GB PM831 | HD+ 4200M | FP | BT
W530: 2740qm | 24GB | 1TB SU800 | FHD K1000M | FP | BT
X1C4: 6600U | 16GB | 512GB SM951 | WQHD
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Re: Who still uses a T520 as a daily driver. And why ?

#13 Post by atagunov » Thu Sep 30, 2021 8:24 am

mikemex wrote:
Wed Sep 29, 2021 1:42 am
I have the W530 because I needed a machine in the mechanical shop
Wow! Last place on Earth I would have expected to find a W530!
Earl of Wessex mending pavement kind of thing :)

Don't look too deep into title and name, I made up the combination on the spot.
Was quite amused to find out that the title is actually held by a member of royal family.
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Re: Who still uses a T520 as a daily driver. And why ?

#14 Post by kfzhu1229 » Thu Sep 30, 2021 9:32 am

mikemex wrote:
Wed Sep 29, 2021 10:03 pm
When intel began integrating the NorthBridge / GPU functions into the CPU package / die, it essentially cut power consumption in half. You can't then explain why Core i series not only didn't reduce the TDP from Montevina, but it actually increased, only to get back to their expected level in later generations. The only possible explanation is that the first iterations of the Core i shipped broken and intel just used it's huge user base as guinea pigs.
Hmm did the TDP increase from Montevina/Montevina 2 to Sandy bridge? I feel like I am missing something here, I thought something like the X9000, X9100, Q9000 QX9300 run just as hot as the likes of i7-2860QM, but the latter has turbo boost that pushes the thermal headroom even slimmer (The predecessor to Turbo boost is NOT supported on 965 series chipsets that I run my X9000 on)
Dell Lat CP MMX-233 64mb 40gb W2k
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Precision M4300 X9000 8gb 160gb WUXGA Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)

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Re: Who still uses a T520 as a daily driver. And why ?

#15 Post by mikemex » Thu Sep 30, 2021 10:51 pm

kfzhu1229 wrote:
Thu Sep 30, 2021 9:32 am
Hmm did the TDP increase from Montevina/Montevina 2 to Sandy bridge? I feel like I am missing something here, I thought something like the X9000, X9100, Q9000 QX9300 run just as hot as the likes of i7-2860QM, but the latter has turbo boost that pushes the thermal headroom even slimmer (The predecessor to Turbo boost is NOT supported on 965 series chipsets that I run my X9000 on)
I'm talking about mainstream mobile processors. In paper, Montevina platform had a TDP of 45W (35W for a T series Penryn processor plus 10W for the NorthBridge CPU). But in reality that number was more like 35W (Penryn went so well in terms of power intel was allowed to expand the traditional lines of regular, low power, ultra low power to include a P series quasi-regular with a TDP of 25W).

When Arrandale was launched, the TDP remained at 35W, despite cutting down a whole chip out of the platform. This means that the power savings intended in the merge didn't materialize.

It should have been 35W Montevina, 25W Arrandale/Sandy Bridge/Ivy Bridge, 15W Haswell.
Main (x2): 6700 | RX170Q | 32GB | 1TB SU800 | 4TB HD | Radeon 7850 | 21.5 FHD
X301: SU9600 | 8GB | 400GB S3610
T420s: 2640m | 16GB | 128GB PM831 | HD+ 4200M | FP | BT
W530: 2740qm | 24GB | 1TB SU800 | FHD K1000M | FP | BT
X1C4: 6600U | 16GB | 512GB SM951 | WQHD
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Re: Who still uses a T520 as a daily driver. And why ?

#16 Post by kfzhu1229 » Thu Sep 30, 2021 11:24 pm

mikemex wrote:
Thu Sep 30, 2021 10:51 pm
When Arrandale was launched, the TDP remained at 35W, despite cutting down a whole chip out of the platform. This means that the power savings intended in the merge didn't materialize.
Fair point for the mainstream lineup. But I think on the enthusiast line it might be a different story.
The first quad core mobile chips (Q9000, QX9x00) are so power hungry that most mainstream laptops (and all of the 15.4" ThinkPads) refuse to support those processors, but with the Arrandale chips, a quad core i7 not only is supported on the 15.6" machines, but also you can drop one inside a 14"/14.1" machine and most likely it will work perfectly fine.
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600 PII-266 416mb 40gb WXP
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Re: Who still uses a T520 as a daily driver. And why ?

#17 Post by TPFanatic » Fri Oct 01, 2021 12:09 am

Do you mean Sandy Bridge? The quads contemporary to Arrandale are not actually Arrandale, they are Clarksfield (720QM, 820QM, and 920XM), and they are not swappable with Arrandale. W510 and W701 with the Clarksfields cannot use an Arrandale dual core.
lenovo T420 i5 2520m 16GB QHD w/ eGPU GTX 960
lenovos T520 i7 2720qm 8GB FHD, T420s i5 3320m 8GB QHD, T430 i5 3320m 8GB FHD, T430 i5 3320m 8GB FHD w/ Optimus, S1 Yoga i7 4600u 8GB FHD
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Re: Who still uses a T520 as a daily driver. And why ?

#18 Post by kfzhu1229 » Fri Oct 01, 2021 1:57 pm

TPFanatic wrote:
Fri Oct 01, 2021 12:09 am
Do you mean Sandy Bridge? The quads contemporary to Arrandale are not actually Arrandale, they are Clarksfield (720QM, 820QM, and 920XM), and they are not swappable with Arrandale. W510 and W701 with the Clarksfields cannot use an Arrandale dual core.
Hmm really? My knowledge for the 1st gen Core i series is a bit slim, but I know for a Dell Latitude E6510, it can use both Arrandale and Clarkfield CPU's

Code: Select all

Intel® CoreTM i7-820QM (1.73GHz, 8M cache) with Turbo Boost
Technology
Intel® CoreTM i7-720QM (1.6GHz, 6M cache) with Turbo Boost
Technology
Intel® CoreTM i7-620M (2.66GHz, 4M cache) with Turbo Boost
Technology
Intel® CoreTM i5-540M (2.53GHz, 3M cache) with Turbo Boost
Technology
Intel® CoreTM i5-520M (2.4GHz, 3M cache) with Turbo Boost
Technology
And a Latitude E6410 is confirmed to work with i7-840QM: https://www.youtube.com/watch?v=b3iKvEoeWq8
Do these not work on a T410, T510?
It doesn't seem like there are two motherboards or something, but I guess I can technically be wrong on that one.
Dell Lat CP MMX-233 64mb 40gb W2k
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
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T530i 15.6" i7 16gb fp W10
UXGA:
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Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)

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Re: Who still uses a T520 as a daily driver. And why ?

#19 Post by TPFanatic » Sun Oct 03, 2021 1:00 am

For the ThinkPads I understood the motherboards are different. Because of the W510, which shipped with either a dual or a quad, and I understood the Arrandale W510 has 2 RAM slots while the Clarksfield W510 has 4 RAM slots.

Also consider that the Arrandales have the iGPU on the second die (memory controller) on the "CPU" chip, but Clarksfield does not have an iGPU (however its memory controller is built into the same die as the CPU). So even if you could put a Clarksfield quad in a T410 or T510, you'd have no GPU. That's why all ThinkPads with a Clarksfield is paired with a dGPU.

I believe it has been tested, putting a Clarksfield in a T410 that has a dGPU, and it did not work. My understanding is Arrandale and Clarksfield are fundamentally different developments and not intercompatible... fascinating that Dells support either CPU. Now I wonder where the incompatability is in the ThinkPads.

The Clarksfields can use 8GB sticks so you can go up to 32GB on the W701 and W510 with 4 RAM slots.

Now I have many questions.

Has anyone tested that those Dells upgraded with Clarksfields can now use 8GB sticks (and go up to 16GB RAM)?
Has anyone with a W510 or W701 tested that it will use one or the other types of CPU?

I had an i7 720QM W510 back in the day and I'm sad now that I didn't hold onto it because I'd love to test this out for myself..... :evil:

edit: Answer for the first question is yes, the Dell E6410 upgraded with the Clarksfield now can use 16GB RAM. :o https://www.youtube.com/watch?v=ByZAYT4OjIY

Now I want to know what it will take for my T410 with NVS 3100m to have an i7 720QM and 16GB RAM. :twisted:
lenovo T420 i5 2520m 16GB QHD w/ eGPU GTX 960
lenovos T520 i7 2720qm 8GB FHD, T420s i5 3320m 8GB QHD, T430 i5 3320m 8GB FHD, T430 i5 3320m 8GB FHD w/ Optimus, S1 Yoga i7 4600u 8GB FHD
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Enable 2 finger scroll on old Synaptics touchpads.

Bionicman
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Re: Who still uses a T520 as a daily driver. And why ?

#20 Post by Bionicman » Sun Oct 03, 2021 4:54 am

Eugor wrote:
Sat Sep 25, 2021 1:05 pm
I am curious about those using T520 as their main machine. Reasons why, advantages, disadvantages, what you use it for etc.

Thanks
I use a T420 as a daily driver very often. The reason ? It survives constant trashing while travelling, packing, etc. It can run 8 hours on battery with the 9 cell Kingsener. And I have more than one battery if needed. I usually put my drive in the ultrabay, so the switching is seamless. Besides, it has a WWAN support, so its always connected. The connection runs flawlessly after wake up. It has survived being rained upon, being twisted, dropped. I hate its screen, but at least its matte and bright enough to use outside. Tried to replace it with newer machines, but the lack of second drive and WWAN is a no-go. Not to mention I can type 70 wpm without looking on that keyboard, whereas on the c(s)hiclet I can't go above 55.

kfzhu1229
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Re: Who still uses a T520 as a daily driver. And why ?

#21 Post by kfzhu1229 » Sun Oct 03, 2021 10:51 am

TPFanatic wrote:
Sun Oct 03, 2021 1:00 am
I believe it has been tested, putting a Clarksfield in a T410 that has a dGPU, and it did not work. My understanding is Arrandale and Clarksfield are fundamentally different developments and not intercompatible... fascinating that Dells support either CPU. Now I wonder where the incompatability is in the ThinkPads.
The Clarksfields can use 8GB sticks so you can go up to 32GB on the W701 and W510 with 4 RAM slots.
Now I have many questions.
Has anyone tested that those Dells upgraded with Clarksfields can now use 8GB sticks (and go up to 16GB RAM)?
Has anyone with a W510 or W701 tested that it will use one or the other types of CPU?
I had an i7 720QM W510 back in the day and I'm sad now that I didn't hold onto it because I'd love to test this out for myself..... :evil:
edit: Answer for the first question is yes, the Dell E6410 upgraded with the Clarksfield now can use 16GB RAM. :o https://www.youtube.com/watch?v=ByZAYT4OjIY
Now I want to know what it will take for my T410 with NVS 3100m to have an i7 720QM and 16GB RAM. :twisted:
Actually as for the RAM part, yes it will take 16GB of RAM if you get Clarkfield working, as seen here by this E6510: https://www.youtube.com/watch?v=hNPSVuqRDV4
I have that youtuber on discord so I already reached out to him to confirm whether Clarkfield would be a drop in upgrade on all E6410/E6510 with a discrete graphics.
Though if a E6410 that's never meant to work with Clarkfield in any way works perfectly with a i7-840QM as a drop in upgrade as long as it has discrete graphics, I suppose the answer is already yes. And it's not like the owner can replace the motherboard with a Precision one because the Precision counterpart for the E6410 doesn't exist, unlike the E6400 and E6510.
And yes, I have read that the discrete graphics part is a must or else the laptop will not work obviously. It is indeed true the Clarkfield CPU's don't have integrated graphics...
I guess now begs the question, will a custom BIOS enable the use of Clarkfield i7's on T410/T510 with discrete graphics? I hope it's not because the 45W TDP is too much to handle for those MOSFETs that it can't even switch itself on.
Now it begs the question, what is the picture on Elitebook side of things? Now that begs some research for sure
Actually, the Elitebook 8540p paints the same picture as the E6510: https://support.hp.com/ca-en/document/c02030610
HP officially claiming it working with both Clarkfield and Arrandale chips. BUT, HP said the ones meant with Clarkfields have 4 DIMM slots and those are obviously a separate motherboard...

Code: Select all

For use with the following dual-core processors: 520M, 540M, 620M 595764-001
For use with the following quad-core processors: 720QM, 820QM 595765-001
EDIT: But apparently the 14.1" 8440w supports 820QM as well as the Arrandale chips while also have only 2 DIMM slots, so there is no reason to believe that the 8440p with discrete graphics won't support Clarkfields...
Dell Lat CP MMX-233 64mb 40gb W2k
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Precision M4300 X9000 8gb 160gb WUXGA Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)

JayNYC
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Re: Who still uses a T520 as a daily driver. And why ?

#22 Post by JayNYC » Thu Oct 07, 2021 6:20 pm

I use a T520 as my personal daily driver, more or less, since early 2018.

Reasons: the classic keyboard + 15" screen.

SSD installed, RAM at 16GB, optical drive removed with dummy slot holder, I have the "better" screen, but it still requires calibration with custom color profile (calibrates slightly better in Nvidia mode vs. HD3000, but battery life....)

Downsides are: bulk, weight, battery life, webcam, driver support is slowly fading, and the speed just can't keep up with modern PCs especially the latest M1 Macbooks

Yep - would love to see Lenovo release another classic model, this time in 15" with modern processor etc.. (won't broach the 4:3 x 3:2 x 16:9 x 16:10 debate, beggars can't be choosers)

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