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Search found 178 matches

by L29Ah
Wed Dec 20, 2023 7:21 pm
Forum: 51nb and other modded Thinkpads
Topic: Possibly missing SMD resistor on X210 board
Replies: 16
Views: 5181

Re: Possibly missing SMD resistor on X210 board

A few quick follow-up questions from the guy working on my board (summarized as best I can - please excuse any misunderstandings on my part): * Was the BIOS chip still in circuit (i.e. on the motherboard) when resistance values were measured? * Did you use a standard multimeter or a 4 wire resistan...
by L29Ah
Mon Dec 04, 2023 6:06 pm
Forum: 51nb and other modded Thinkpads
Topic: Possibly missing SMD resistor on X210 board
Replies: 16
Views: 5181

Re: Possibly missing SMD resistor on X210 board

My mobo seems to have the same layout as bcn's. R480 is measured to have 10kOhm. Just in case it's renamed, I've verified that it connects pin 3 (WP#) to pin 8 of the flash chip. Also, R488 is 28Ohm and connects pin 3 to something else, likely the EC. Many thanks for checking. I have passed this on...
by L29Ah
Thu Nov 30, 2023 2:53 pm
Forum: 51nb and other modded Thinkpads
Topic: Possibly missing SMD resistor on X210 board
Replies: 16
Views: 5181

Re: Possibly missing SMD resistor on X210 board

So TL;DR: Can anyone with access to an X210 board please check component R480 (near the BIOS chip)? My mobo seems to have the same layout as bcn's. R480 is measured to have 10kOhm. Just in case it's renamed, I've verified that it connects pin 3 (WP#) to pin 8 of the flash chip. Also, R488 is 28Ohm ...
by L29Ah
Thu Nov 30, 2023 11:42 am
Forum: 51nb and other modded Thinkpads
Topic: Possibly missing SMD resistor on X210 board
Replies: 16
Views: 5181

Re: Possibly missing SMD resistor on X210 board

Heh, I was actually gonna say that I'd be willing to sponsor anyone willing to go to the trouble of checking this for me. Is that something you'd consider, for a reasonable donation over PayPal or something? If not, it does sound as though you know what you're talking about, so I'm inclined to trus...
by L29Ah
Fri Nov 24, 2023 10:12 am
Forum: 51nb and other modded Thinkpads
Topic: Xue Yao talking about ThinkPad modding on Friday Mar 09, 2023
Replies: 7
Views: 3039

Re: Xue Yao talking about ThinkPad modding on Friday Mar 09, 2023

Pi is a poor choice since its hardware is not going to beat X2100 any time soon wrt performance and driver support.
by L29Ah
Fri Nov 24, 2023 7:59 am
Forum: 51nb and other modded Thinkpads
Topic: Possibly missing SMD resistor on X210 board
Replies: 16
Views: 5181

Re: Possibly missing SMD resistor on X210 board

I'm too lazy to disassemble my precious X210 and measure it for free, but according to datasheet and your crappy photos it's likely just a pullup for WP# of the SPI flash, so whatever under 1MOhm can be plugged and work. Or ignored altogether if you don't need the flash chip written by the X210.
by L29Ah
Fri Sep 22, 2023 5:36 pm
Forum: 51nb and other modded Thinkpads
Topic: X210/X2100 embedded controller fixes (was: X210 EC datasheet/better brightness control)
Replies: 125
Views: 116878

Re: X210/X2100 embedded controller fixes (was: X210 EC datasheet/better brightness control)

Do you need to patch the BIOS to get working EFI on the X210? I noticed today that the BIOS reports UEFI 2.x but I've tried to boot off both USB drives and hard drives that have a EFI partition -- both do not boot either presenting a black screen or an error "enter a proper boot device". Only boots...
by L29Ah
Wed Jul 19, 2023 3:01 pm
Forum: 51nb and other modded Thinkpads
Topic: Very loud fan on X2100
Replies: 1
Views: 6239

Re: Very loud fan on X2100

I think the best you can do is to check out the BIOS reverse engineering thread and adjust the fan intensity steps to your taste via binary patching.
by L29Ah
Wed Jun 21, 2023 10:21 am
Forum: 51nb and other modded Thinkpads
Topic: Advice: I might have bricked my X2100
Replies: 3
Views: 2235

Re: Advice: I might have bricked my X2100

How about restoring the entire flash contents from the backup you made before writing to it?
by L29Ah
Wed Jan 18, 2023 8:12 pm
Forum: 51nb and other modded Thinkpads
Topic: X2100 won't turn on, makes chirping noise
Replies: 18
Views: 9868

Re: X2100 won't turn on, makes chirping noise

Well, this is an interesting outcome. Supplying voltage to the EEPROM VCC pin makes my Raspberry Pi turn off, probably for self-protection. A meter shows about 7K ohm resistance between VCC on the flash chip and ground. This is. . . lower than I would expect. (A reference BIOS chip in a different b...
by L29Ah
Wed May 18, 2022 5:49 pm
Forum: 51nb and other modded Thinkpads
Topic: Sound through mini DisplayPort on X210?
Replies: 0
Views: 3781

Sound through mini DisplayPort on X210?

Did anyone get it working? I don't even see such a device in ALSA (inserting snd-hda-codec-hdmi module manually does nothing).
by L29Ah
Sat Nov 20, 2021 1:36 pm
Forum: 51nb and other modded Thinkpads
Topic: X2100 Short-Circuit - Burning Cable [SOLVED]
Replies: 3
Views: 6155

Re: X2100 Short-Circuit - Burning Cable

> If you're seeing this message, that means JavaScript has been disabled on your browser, please enable JS to make Imgur work.
by L29Ah
Sat Nov 13, 2021 11:44 pm
Forum: ThinkPad X200/X201/X220 and X300/X301 Series
Topic: Thinkpad X300/X301 modding (split off T700 discussion)
Replies: 14
Views: 7807

Re: Thinkpad T700 i7-10710 private project

I'm willing to pay big bucks for an upgraded X301 motherboard. Intel just released a "Pentium Silver N6005" that seems to fit the bill perfectly. 4 cores @ 10W TDP. Seems less expensive / easier than your T700... I mean, I don't think intel cares that much for the low end product lines. They are pr...
by L29Ah
Wed Nov 10, 2021 10:27 pm
Forum: 51nb and other modded Thinkpads
Topic: Repurpose Optical Drive With Raspberry Pi
Replies: 3
Views: 5082

Re: Repurpose Optical Drive With Raspberry Pi

www.instructables.com/Re-purpose-Optical-Drive-With-RPi »[...] I thought about what I could put in there instead and realised I could embed a Raspberry Pi inside my computer that I could use for projects on the go and more programmable IO for my computer. As this idea evolved I came up with the ide...
by L29Ah
Mon Nov 08, 2021 2:54 pm
Forum: 51nb and other modded Thinkpads
Topic: X210/X2100 embedded controller fixes (was: X210 EC datasheet/better brightness control)
Replies: 125
Views: 116878

Re: X210 EC datasheet/better brightness control?

exander wrote:
Mon Nov 08, 2021 10:26 am
L29Ah wrote:
Sun Sep 01, 2019 6:31 pm
vladisslav2011's linux kernel ec debugfs patch ported to 5.1: https://dump.bitcheese.net/files/fazusa ... 1-ec.patch
Is the patch still available somewhere?
https://tinystash.undef.im/il/pBEEvVo8W ... 1Fn9nRvJnp
by L29Ah
Thu Aug 12, 2021 2:29 pm
Forum: 51nb and other modded Thinkpads
Topic: x210 screen connector gone?
Replies: 29
Views: 13860

Re: x210 screen connector gone?

I've replaced my panel data ribbon and now it works ~fine. Is it plausible that the ribbons of two different screens work well and then go bad at the same time? Also, my ribbons seem custom made by 51nb. Won't be easy to source another just to test... (apologies for the imgur thing. Edited the firs...
by L29Ah
Thu Aug 12, 2021 8:35 am
Forum: 51nb and other modded Thinkpads
Topic: x210 screen connector gone?
Replies: 29
Views: 13860

Re: x210 screen connector gone?

harryK wrote:
Thu Aug 12, 2021 5:19 am
So, my x210 started doing this: https://imgur.com/a/ESgI4jz
What should I do? :-(
You should stop posting links that demand users to turn on javascript.
by L29Ah
Thu Aug 12, 2021 8:33 am
Forum: 51nb and other modded Thinkpads
Topic: x210 screen connector gone?
Replies: 29
Views: 13860

Re: x210 screen connector gone?

I've replaced my panel data ribbon and now it works ~fine. Out of interest - is it some standardish ribbon? Or is some rework specific to X210/X2100? Standard. To quote myself from reddit a year ago: I've been hit by the same problem. I bought a 300mm 30pin 0.5mm pitch type B FFC cable, and when i ...
by L29Ah
Thu Aug 12, 2021 8:25 am
Forum: 51nb and other modded Thinkpads
Topic: x210 screen connector gone?
Replies: 29
Views: 13860

Re: x210 screen connector gone?

So, my x210 started doing this: https://imgur.com/a/ESgI4jz If I move the lid back and forth the picture comes and goes. Happens with the 3K screen AND with the 1200p one, which flickers like hell. That makes me think of a bad connector on the mainboard rather than bad cable(s). What should I do? :...
by L29Ah
Sat Aug 07, 2021 10:48 am
Forum: 51nb and other modded Thinkpads
Topic: X210 lower left usb port doesn't work
Replies: 2
Views: 5923

Re: X210 lower left usb port doesn't work

Poked the usb data pins with a multimeter. Found a pin that is shorted to ground. Removed D10 in the hope that it's faulty, but no luck: the pin is still shorted. Couldn't find anything else i could poke before the wires go into the intermediate PCB layers.
by L29Ah
Sat Aug 07, 2021 8:22 am
Forum: 51nb and other modded Thinkpads
Topic: X210 lower left usb port doesn't work
Replies: 2
Views: 5923

X210 lower left usb port doesn't work

It doesn't respond when USB1/2 or USB3 devices are connected to it. The pins are clean, 5V is present, nothing pops up in dmesg when i plug anything in. What could be wrong with it and how could i figure out and fix it? A BIOS setting or hardware problem?
by L29Ah
Tue May 25, 2021 4:04 am
Forum: 51nb and other modded Thinkpads
Topic: Recent kernels demolish power saving on the X210
Replies: 8
Views: 13502

Re: Recent kernels demolish power saving on the X210

Checked it today, and in 5.12.6 r8169 still disables ASPM unconditionally with a scary warning: /* Disable ASPM completely as that cause random device stop working * problems as well as full system hangs for some PCIe devices users. */ rc = pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LIN...
by L29Ah
Wed Apr 21, 2021 9:11 am
Forum: 51nb and other modded Thinkpads
Topic: X210/X2100 embedded controller fixes (was: X210 EC datasheet/better brightness control)
Replies: 125
Views: 116878

Re: X210 EC datasheet/better brightness control?

I have patched the EC firmware. Now brightness levels are 1%,2%,4%,8%,16%,32%,44%,48%,55%,60%,65%,70%,78%,84%,94%,99%. First 6 levels were replaced with more useful values. http://rgho.st/6rB9RGr88 Now power consumption is ~3.1W idle, offline,minimal brightness and only 2.8W with LCD off. It looks ...
by L29Ah
Wed Mar 31, 2021 4:56 pm
Forum: 51nb and other modded Thinkpads
Topic: Getting a x2100 4th batch, have some questions
Replies: 9
Views: 9857

Re: Getting a x2100 4th batch, have some questions

I couldn't find a decent 9cell battery on the market (they all seem to contain 2A*h cells of questionable durability and balance) so i bought a [censored] one and good cells, and repacked it myself. So which one did you buy? How fiddly was the process? How well made did you find it inside? Which mi...
by L29Ah
Wed Mar 31, 2021 2:33 pm
Forum: 51nb and other modded Thinkpads
Topic: X210 WWAN /mSATA port does mPCIE!
Replies: 14
Views: 13637

Re: X210 WWAN /mSATA port does mPCIE!

Interesting idea. However, that doesn't really help my use case - I wanted to combine the two slots to get an x2 device. If I can't even get devices to work properly at x1 in the first slot, there's no use in taking the clock lines and making the other one into an x1 port either... R But it does he...
by L29Ah
Wed Mar 31, 2021 2:01 pm
Forum: 51nb and other modded Thinkpads
Topic: Getting a x2100 4th batch, have some questions
Replies: 9
Views: 9857

Re: Getting a x2100 4th batch, have some questions

I couldn't find a decent 9cell battery on the market (they all seem to contain 2A*h cells of questionable durability and balance) so i bought a [censored] one and good cells, and repacked it myself.
by L29Ah
Tue Mar 09, 2021 9:28 pm
Forum: 51nb and other modded Thinkpads
Topic: Recently got X2100 from Jacky. AMA
Replies: 32
Views: 29804

Re: Recently got X2100 from Jacky. AMA

Quick question: what are your thermal readings under the regular load? Are you using NVMe SSD or SATA 2.5"? I am using NVMe and it seems to be just on top of the CPU in x2100, so the front-left side of the laptop, under the palmrest, gets pretty hot, around 50-55 C for the CPU and up to 60 C for NV...
by L29Ah
Sun Mar 07, 2021 3:52 pm
Forum: 51nb and other modded Thinkpads
Topic: X210 miniPCIe eGPU?
Replies: 14
Views: 10253

Re: X210 miniPCIe eGPU?

darn, i wish there was a way to export/import/diff the bios setup config in a readable format. diff`ed complete listing of `efivars` after adjusting the bios configuration, and nope: the only difference is in the reboot counters or smth. At this point i'm not sure whether it makes sense to go on an...
by L29Ah
Tue Mar 02, 2021 12:43 pm
Forum: 51nb and other modded Thinkpads
Topic: X210 miniPCIe eGPU?
Replies: 14
Views: 10253

Re: X210 miniPCIe eGPU?

I doubt it. USB 3.x has extra differential pairs in it, separately from the regular D+/D- that are used in USB 2.0 (those are kept for "backwards compatibility"). You could maybe get a shielded USB 2.0 cable (which is a thing) though, that may help. Did you try the same method on the upper slot (af...

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