Thinkpads Forum

Hi guys,

I upgraded from a T2500 to a T7400 in my T60p few days ago and now I am a bit worried about my CPU temps under full load.
I reinstalled my Heatsink/Fan 3 times now and I am using AS5 for the CPU. I have the HSF FRU: 41V9932. I know this is a Core Duo Fan, but I wanted to keep it regarding lower noise output.
Right now I am running Orthos Prime Stress Test and TPFancontrol shows me 84 Deg Celsius after about 10 minutes. GPU is at 76 C (FireGL 5200) but that was the same before with the T2500.
Are these temperatures safe and normal for a T7400 in a T60p under full load? With the T2500 before I didn't get higher than 73 C.
Or should I look at my HSF again? I tried a ultra thin amount of AS5 first, but then the temp skyrocketed under load and the computer did shutdown. I took off the HSF and saw almos NO AS5 touched the HSF surface. So putting only a minimum on the CPU was definately not enough to fill the gap. So right now I am using more AS5 on the cpu and also covered the HSF surface with a thin layer. Works much better, but 84 C is still quite high in my eyes ...

Any help would be much appreciated ...

boba

My T60p came with a T7400. It works very well, CPU is always in 50-60 and top to 70 degrees celcius at High Performance.
Sometimes, with heavy use, it reach 70-74 and max 78 celcius degrees working under vista ultimate x64 (I had 32 bits before and was the same). Working with XP, NHC show less (around 47-55 in normal use) and 60-65 in high performance.

Take in count I'm in a very hot country with average of 30 celcius environmental temperature.

At the office, with air conditioneer is lower, a lot lower.

Melvyn wrote:My T60p came with a T7400. It works very well, CPU is always in 50-60 and top to 70 degrees celcius at High Performance.
Sometimes, with heavy use, it reach 70-74 and max 78 celcius degrees working under vista ultimate x64 (I had 32 bits before and was the same). Working with XP, NHC show less (around 47-55 in normal use) and 60-65 in high performance.

Take in count I'm in a very hot country with average of 30 celcius environmental temperature.

At the office, with air conditioneer is lower, a lot lower.

Well what do you define as "heavy use"? Could you run Orthos Prime to check your temps under full load. Heavy use doesn't normally include maxing out both cores. That's what tools like Orthos Prime are for.
In normal use, idle, browsing the web, I don't get above 50 Celsius when I let bios control my fan. With noise optimized TPFancontrol setup I hover between 50-60 Celsius with almost no fan usage or max fan at #1.
Reapplied my heatsink again and under load I get 78-81 Celsius, full load that is, again orthos prime That's not everyday conditions, like rendering or packing/unpacking files, encoding mp3s/mpeg4 or whatever. That's max core usage as I said.
Compared today also to my Core Duo T2500, and that in fact runs about 10-15 degrees cooler under full load.

boba

boba23 wrote: Well what do you define as "heavy use"? Could you run Orthos Prime to check your temps under full load. Heavy use doesn't normally include maxing out both cores. That's what tools like Orthos Prime are for.

Compiling. I got some stress for some minutes. Let's download orthos prime. I have XP pro SP3 and Vista 64 SP1 x64, there's no NHC neither RMClock, and no stuff like that in x64. To see temp and usage only sidebar gadgets and Everest Ultimate.

This T60p is very ver quiet. Zero noice, never, including when max speed and fan working. T40 and T42 had lot of noise. I've never heard a noise in this one.noise. I'm goint to test orthos prime and post.

Melvyn wrote:

boba23 wrote: Well what do you define as "heavy use"? Could you run Orthos Prime to check your temps under full load. Heavy use doesn't normally include maxing out both cores. That's what tools like Orthos Prime are for.

Compiling. I got some stress for some minutes. Let's download orthos prime. I have XP pro SP3 and Vista 64 SP1 x64, there's no NHC neither RMClock, and no stuff like that in x64. To see temp and usage only sidebar gadgets and Everest Ultimate.

This T60p is very ver quiet. Zero noice, never, including when max speed and fan working. T42 and T42 had lot of noise. I've never heard a noise in this one.noise. I'm goint to test orthos prime and post.

Hehe, alright, then please gimme the FRU of your wonder Fan I think your are simply not very sensitive to noise then. I mean my fan is ok at the level I let it run, but I CAN hear it. It doesn't bother me though. No sound with fan running = impossible. There are lots of topics about T60 fan noise here and in other forums man, and I have seen no one who does not hear the fan at all when it's running,it's just a matter of how loud it is.
Thanks for your effort man.

boba

boba23 wrote:Hehe, alright, then please gimme the FRU of your wonder Fan I think your are simply not very sensitive to noise then. I mean my fan is ok at the level I let it run, but I CAN hear it.

hahahaha

Funny you! Guess what? I'm deaf from right ear (12/20).
I hear the fan, it's pretty silent, the more silent I've even had. I have a T42 which disturb a lot (service center changed mobo and fan five months ago). Also a Dell Latitude D420 which is supossed to be quiet... and no, it's noisier.

Right now it's running Prime95. My sister is 5 meters away and I hear the fan from the D420 she is using. This one is smooth.

Right now:
Prime 95 In Place FFTs (maximum heat, power consumption, some ram).
Task manager show both cores at 100%, 10 minutes running,
Core 1: 60 degrees
Core 2: 61 degrees
Environment temperature: 24 degrees

I'll stop and try blend (which take more ram) and will link a screenshot later.

Melvyn wrote:

boba23 wrote:Hehe, alright, then please gimme the FRU of your wonder Fan I think your are simply not very sensitive to noise then. I mean my fan is ok at the level I let it run, but I CAN hear it.

hahahaha

Funny you! Guess what? I'm deaf from right ear (12/20).
I hear the fan, it's pretty silent, the more silent I've even had. I have a T42 which disturb a lot (service center changed mobo and fan five months ago). Also a Dell Latitude D420 which is supossed to be quiet... and no, it's noisier.

Right now it's running Prime95. My sister is 5 meters away and I hear the fan from the D420 she is using. This one is smooth.

Right now:
Prime 95 In Place FFTs (maximum heat, power consumption, some ram).
Task manager show both cores at 100%, 10 minutes running,
Core 1: 60 degrees
Core 2: 61 degrees
Environment temperature: 24 degrees

I'll stop and try blend (which take more ram) and will link a screenshot later.

If you don't mind get Orthos from here:

http://sp2004.fre3.com/

it's made for dual core machines. How did you get 100% on both cores with Prime95? I need to have 2 instances of the "regular" Prime95 running to get 100% load on both cores ... did you do that? Anyways, if you really get 61 degrees, then I think I gotta get that specific C2D fan from IBM. Seems to be way better.

boba

I tried to find orthos, got some broken links, so I dl Prime95 from
http://www.dslreports.com/forum/r202378 ... -64-bit-OS
which pointed to and Prime95 64bits: http://www.dslreports.com/r0/download/1 ... 64V254.zip

I uploaded an screenshot to here:
http://www.purocodigo.com/melvyn/issues ... rime95.jpg

Process Manager report an usage of 1.7gb from the process prime95.exe

For now, it's 8 minutes in orthos, and reach 62 in both cores.

Of course, when time is 1:00pm and environment temperature reach 35 degrees here, it go over 70!

An original review of the T61P compared it with the T60p and showed an increase in CPU temperature under load from 70oC (T60p) to 85oC (T61p) with the higher powered C2D CPU:

http://www.notebookreview.com/default.asp?newsID=3889

They didn't seem too worried about this.

Well, 1 hour running orthos and stable at 60 celsius degrees. You can see some detail, including view from everst, orthos and task manager in this screenshot:
http://www.purocodigo.com/melvyn/issues ... s-test.JPG

Room temperature is 24C degrees (75F) (midnight), no A/C, fan, nothing. ThinkPad T42 located 5 meters away is noiser than this, also Dell D420. Environment is very quiet, nothing come from out. No NHC, no RMClock, no TPFanControl, nothing but Vista Ultimate x64 and lenovo power manager set as high performance.

I'm proud of this machine.

Where can I find the fan part number? I checked in Lenovo's site, under warranty, entered serial number and then "View parts lookup results for this system". Under "Part lookup results" there's nothing for fan.

I am running the official Core2Duo Fan now, and I am happy with it. Max temp under load is now 72 C for me. I still don't get it how you can keep it at 60, but well ... only thing I can think of, is that your 5250 runs way cooler and thus the heatsink doesn't have to "work" that hard to keep your cpu cooler. I searched all available forums and didn't see anyone with a load temperature of 60 C. That's really very cool. Anyway 72 C is very fine with me, since it's 20 C+ away from the shutdown temps of the cpu.

Thanks for your help man,

boba

I'm just curious - what do you mean by official dual core fan? Do you mean the fan FRU 41W6407?

tockki wrote:I'm just curious - what do you mean by official dual core fan? Do you mean the fan FRU 41W6407?

Never said "DualCore" fan. There are fans for "CoreDuo" CPUs and for "Core2Duo" CPUs. And yes, the FRU you mentioned is the one I run now, that's made for Core2Duo + discrete graphics.
The main difference is the CPU heatpipe. It's longer and reaches up to the back vent opening. The CoreDuo fans cpu heatpipe did only reach up to the left opening.

boba

I'm confused about the fans. I found this website that offers both models for sell, and in the pictures they look almost identical.

41V9932
41W6407

Are the pictures wrong? Could you post some of yours?

dr_st wrote:I'm confused about the fans. I found this website that offers both models for sell, and in the pictures they look almost identical.

41V9932
41W6407

Are the pictures wrong? Could you post some of yours?

Hey,

no I think the picture are right, they just took photos of the wrong side top view would have been better. As I stated above, the CPU heatpipe of the 41W6407 is LONGER than the one of the 41V9932, it runs all the way to the back vent opening. The 41V9932s heatpipe just reaches the side opening.

boba

OK, I found some other pictures online and I see what you mean.

I plan to do a similar CD->C2D upgrade at some point, and it is good to keep in mind that I may have to change the fan as well.