Hello!

In one of my computers I have installed two GTX-480 GPUs and I want your opinion about the maximum allowed working temperature. At this point Fanspeed program shows me the following temperatures:
GPU1: 89oC
GPU2: 86oC
CPU: 43oC
System: 66oC

In the last week my system was restarting may be because of overheating protection but with my mobo ASUS P6t DELUXE V2 I don't know how to adjust this setting. So there are two questions from me to you:

a. If my GPU & system temps are looking good.
b. Do you know a way to adjust Asus P6t deluxe v2 mobo's overheating temperature protection setting?

The pc is equipped with two 200mm CoolerMaster case fans (the one above the other in the left of the case)& two 120mm case fans (in front and in the back of the case).

Thank you!

Your temperatures aren't great, they're very high ;)

A system temperature of 66°C would be close to meltdown, as motherboards are usually specified for a maximum ambient temperature of ~43°C. Could be that your numbers for CPU and Case are switched, though, as I have a hard time imagining how a CPU could stay at 43°C when the case is 66°C hot.

Regarding the GPU: a bit less than 90°C is the maximum temperature the manufacturers allow their GPUs to run at. Fan speed is adjusted so it is not exceeded. This temperature is fine for short periods (i.e. games) and can be fine over tong times. However, longevity does suffer. Compared to 70°C you can expect about 1/4th the chip lifetime.

GTX480 is one hell of a beast to cool.

MrS

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Scanning for our furry friends since Jan 2002

Before two weeks I didn't had the same problem and I use now just i used back then the same pc. Is this possible? May be something has changed in the working units from the program? I don't know what to tell because I simply can't explain how this is happening...

Ok found it! Just had to manipulate fan control. Sorry for the troubles!

The 4 temp settings in SmartDoctor works OK, but also depending on room temp.
it can happen the the fan runs at 100%, not for long, but very dependant of the
highest temp setting.
You also can choose to set the fan at a fixed %, but if the GPU-Load is very fluctuating, this can give problems.
Or let the 480 choose it's temp. and fan setting, which will run hot 87C- 94C,
100C is the maximum temp. But not advised to keep it that high.
I've set it (@1.6GHz) at 80C max. Fan will use 100% to keep it at 80C, but hasn't
happened with GPUgrid WUs, or long run WU's

I run this rig, WHITHOUT a Case cooling isn't a problem anymore, CPU
a X9650 runs @ 3.51GHz @ 45C, Mobo 37C and GTX480 @ 1.6GHz runs 75C (max fan @ 80C)

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Knight Who Says Ni N!

Hello!

I have noticed that after 5 hours of running GPUGRID, the pc restarts. I don;t think that it’s an overheating problem because my temps are stable at a low level (from my point of view). So I have GPU#1 temp @ 65◦C, GPU#2 temp@ 68◦C, system temp @ 45◦C and CPU temp @ 39◦C (off course these temps are while running GPUGRID). The above mentioned temps are kept at that levels with the proper adjustment of both fans in "fastest" speed while GPU temps are over 70◦C. My drivers are latest beta 267.58. I had tried to let 480 to choose "automatically" the fan rotation speed but I've noticed that while reaching 82◦C the fan was at 65% of max speed and I think that this is not a good temp for 24x7 GPUGRID processing. Any suggestions?

Thank you!

Did you turn off automatic updates?

What sort of PSU do you have?

I think that in Windows 7 automatic updates aren't by default on. Sure it can find if there are any available but without your approval it can't install them. the PSU is from Enermax 85+ with 950W.

If you are in an area with regular power dips, that could explain the problem.

You might have a corruption in the operating system, a disk drive corruption, a memory issue, weak capacitor on the motherboard, overheating chipset or your GPU is causing the restarts. Only you know what you installed, where its located, it's history and what it's used for now. I suggest you do some scans (AV/malware, disk drive scans, memory check), at least to rule the problems out.

Can you check the chipset temperature? I dont think it comes with a fan on that board.

W7 - depends how you setup updates; you can have updates set to automatically download and install, to not check for updates, and everything in between.

For the power supply I have a surge arrest from APC installed i which the pc is connected to. I have had this sort of problem after installing windows 7 while running for the first time GPUGRID with the drivers from NVIDIA 266.68 but this was solved after installing beta drivers 267.58. The chipset temp is @ 33oC when the pc not stressed with WU and while WU processing @ 45oC. For the two GPUs I have a suspicion; I have found that when I use one of the two no problem is taking place in my pc but when both are running I get to have a restart after a while (the time of period depends). I don't think that anything else is responsible for this just because the last month I had installed Windows 7 about 4 times with the same problem just to check what is the problem. I will try to see also if this happens only when WUs from GPUGRID are processing (that will make me to thing that it's not my pc that is having an issue).

Hi, I have 2 mobo's (ASUS P5E), they have probblems with 2 400 series GPU,
a GTX470 & 480, the 470 ran in PCI-E x2 and the 480 in 1x mode.
And I had the same troubles of just stopping and a restart of BOINC (6.10.58 64BIT) would mostly resolve this, but random failiars too.
Now, I've split them up, the 64BIT XP and X9650 @ 3.5GHz has the 480.

The same mobe works OK with an ATI 5770 and 5870 and runs both cards in PCI-E 2.0 x16! Very annoying.
Have to find another mobo.
But I should check with GPUz.

And put, atleast 2 fans inn the front, one in the side (CPU) and 2 in the rear.
Those 480's put out a lot of heat and not only from the back, the HDD case became also 75C.
(Well I've had it with most computer cases, they're not made for an OC'ed CPU, 2 480 and some HDD. Thats about 500 Watt, if computing at 100%
and GPU at highest but also safest speed and ofcoarse 24h x7 days)
I run it a.t.m. without a case :)

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Knight Who Says Ni N!

Now I have set Smart Doctor to auto Fan control and GPU#1 is @ 78oC while GPU#2 is @ 80oC and the fan rotates @ 56%. Chipset temp is @ 46oC. Are these numbers good? I have an 200mm fan in the front of case, a 200mm at the side of the case, a 200mm at the upper floor of the case, a 120mm in the rear and 2x120mm at the side of the two GTX480s. Aren't these enough?

Hi, it is quite hot but 80C is a safe operation temp. Lower is always better
but in most cases, the fan has to run faster, more noise. Other temps are OK, IMHO.

I've mine running at 1.5GHz, 70C, fan 50%, CPU 60C (X9650@ 3.5GHz), PSU=35C
850Watt, load 358Watt running 3 SETI WU's, or 350W with GPUgrid.(No case)

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Knight Who Says Ni N!

Hello!

After days of trying everything I have to a conclusion that may be it is Microsoft's Security Essentials that is restarting my pc. I saw from event viewer that every now and then the anti-malware system had found bugs and that they caused to it fatal errors. So I've uninstalled it and installed Symantec's Endpoint Protection and the last two days i don;t have any problems running 24h a day. If something comes up I'll be in touch!

It seems that it's not only Microsoft's Security Essentials antivirus causing my pc BSD. I have found that "TBPanel service" has something to do with the problem too. I have found that this service has to do with NVIDIA drivers for Gainward GPUs. The one of the two GPUs I have is from Gainward. Anyone has an idea from now on? I had the files "tBPanel.*" deleted from c"\windows\drivers\wow64 (etc.)" directory.

From Windows Action Center i'm copying the following:

Description
A problem with your video hardware caused Windows to stop working correctly.

Problem signature
Problem Event Name: LiveKernelEvent
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: 1032

Extra information about the problem
BCCode: 117
BCP1: FFFFFA800A9DD010
BCP2: FFFFF880101BB408
BCP3: 0000000000000000
BCP4: 0000000000000000
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1
Bucket ID: X64_0x117_Tdr:2_IMAGE_nvlddmkm.sys
Server information: 43f2cc24-a71d-49db-8d13-0b6972c8a75d

An apparent problem with a GPU driver may be a problem with a GPU driver or hardware.

MrS

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Scanning for our furry friends since Jan 2002

I had tested both GPUs alone and found that ASUS GTX-480 restarts my pc after 5 minutes of GPUGRID simulations but GAINWARD GTX-480 doesn't. In both cases the GPUs temps were exactly the same (65oC). For this test I installed latest bet from NVIDIA (270) posted on Internet yesterday. Any suggestions?

Try increasing the voltage on the GPU slightly; it might improve stability.

You could also try Linux, to see if the problem is an operating system issue or GPU issue.

In the afternoon I tested the ASUS GTX-480 with the factory drivers (v.197) and tried simulations from another BOINC project (milkyway@home, SETI, etc.) for about 2h and everything were stable. So I connected the GAinward GTX-480 too and installed the first drivers supporting cuda 3.1 in order to run GPUGRID simulations. For the last 1h the pc seems to be working fine and I'll post again tomorrow morning just to let you know if my problem was caused by a faulty driver or I'm still having other problems.

Could also be a problem of power distribution, i.e. from which rail does which card draw its power. In that case it might be enough to just swap the cards including all connectors to make the Asus stable and the Gainward unstable.

MrS

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Scanning for our furry friends since Jan 2002