Asus P6T Deluxe V2 Sensors

[carinae]

My P6T Deluxe idles around 37 C, when I run Prime95 on the CPU for a few hours the temperature of the board stays the same at 37 C. But when I start a GPU benchmarking program like 3dMark06 the motherboard temperature rises from 37 C all the way up to 55 C or even 60 C when playing Crysis at maximum graphics. The ambient temperature is a bit high because it's summer, but that's probably only a few degrees extra.

 

Is the temperature sensor located behind the GPU slot? My GPU (GTX285) never goes past 60 C but it is warming my motherboard up a lot, I'm worried about this because I had stability issues on my previous PC (also high motherboard temperatures). I have a lot of fans in my computer and good cable management - the memory is also cooled and the CPU load doesn't affect the motherboard temperature at all. This brings me to the conclusion that the videocard is warming up the motherboard. Should I change it to a different slot? (I am currently using the blue one which Asus recommended)

 

Thanks

 

- P6T Deluxe V2

- i7 930 @ 3.4 GHz / 1.25 V

- 3x2 OCZ Gold @ 1624 MHz / 8-8-8-24-1T / 1.6 V bus / 1.3 V core

- GTX285 Black Edition @ 700 / 1300 / 1574

[king21092]

Is the temperature sensor located behind the GPU slot?

It may not be behind (depending on which way you look at) the video card, but it sounds like it's toward to bottom of your motherboard, closer to the video card.

 

Should I change it to a different slot?

Unless you think you will be able to cool your video card in another slot more effectively, you most likely won't see much of a difference.

 

Last thoughts:

Are you using watercooling?

Does your CPU ever heat up while running a GPU stress test program? A benchmarking program may actually put some load on your CPU, which will make your answer for this question void. I always use OCCT, it should keep your CPU usage below 1%, providing accurate temperatures.

Please fill in your computer specs so we can see what type of case, etc. Anything else that you think may be useful.

 

 

Let's pretend the motherboard temperature sensor is located within an inch from PCIe slot on your motherboard. Depending on the type of cooling your video card has (open sides, boxed in, multiple fans, where vents are located, etc) you could be blowing nice hot air in all directions (if it's open sided) around your video card, including directly onto your motherboard. Now, if that sensor is on the motherboard is very close to the PCIe slot, below the overhang of the video card's cooling, it could be receiving all the warm air from your video card. Since you are running one of NVidias newer generation GPU units, you obviously have some massive heat to deal with.

 

All in all it sounds like you have good cooling on your CPU simply because your motherboard doesn't heat up. Although with NVidia's GTX 285 you simply can't (can not) get enough cooling on the video card to have the same effect as the CPU. Remember, video card are required to pump a lot of air through a vent in the back of the video card. Most of the time this just isn't effective enough and a lot of that hot air gets pushed back into the case itself.

[carinae]

All my stuff is air cooled, I have an older Thermaltake Armor case with a 120 mm fan in the front for intake, another in the back to help cool the CPU. I also installed two smaller fans at the top for better airflow and another 120 mm fan which is blowing air directly on top of the memory (does its job perfectly).

The GTX285 actually has really good temperatures using 100% fanspeed (I don't mind the noise) the back of the case is aimed towards my window so all surroundings are cool. The GTX285 has 35 C idle and 60 C load at the absolute max (usually 55 C load). Same story for the CPU, 35 C idle and 50 C load (games), 65 C load (multiple hours of Prime95)

 

Putting a 120 mm fan to cool the memory didn't affect the motherboard temperatures at all, so the sensor must be somewhere below the GPU or behind it. Idle temperatures are ok but I'm just a bit worried when gaming, one of the reasons I got this PC was because the other motherboard was extremely unstable locking up like ten times a day at completely random moments. (it was a Striker II Extreme which was 65 C idle, 75 C load)

 

edit:

 

I see you have the same motherboard, may I ask what your temperatures are idle / load?

 

edit:

 

I'm 100% sure that the CPU temperature doesn't affect the motherboard temperature, I ran Prime95 for multiple hours which didn't change my mobo temps at all yet when I start playing games and put a lot of stress on my GPU the mobo temp goes waaaay up. Even with the CPU at 65 C the mobo temperature barely changes.