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Phenom II X4 955BE running too hot and Idling at 50 degrees celcius?

post #1 of 14
Thread Starter 
I purchased this OEM CPU recently and have just installed this CPU onto an Asrock 870 Extreme3 v2.0 motherboard using a Noctua NH-U9B SE2 dual-fan CPU cooler with GC-Extreme thermal compound.

I have built and installed other systems in the past but this is by far the hottest running CPU I've had and it is now idling at 51 degrees Celsius as I'm typing this.

The CPU is running at default settings (3.2ghz/1.288v) and most of my other components i.e motherboard, hdd, even the GPU (HD5770) is idling around 35 degrees Celsius so I don't think airflow is an issue.

I'm using both HWMonitor & Core Temp to measure my temps and they are both showing the same temps.

The heatsink is warm to touch when the CPU is on idle and when its on prime95, it is definitely hot to touch so the temps from the monitoring software appears to be accurate.

Generally my past CPUs have idled around the low 30s and peaked at around 55 degrees using the same Noctua NH-U9B SE2 but this x4 955 idles in the high 40s and goes well over 62 degrees - which I believe is the thermal safe limit for the CPU?

When entering the BIOS here are my readings:

The temp starts off at 52 degrees and within a space 2 minutes, climbs upto and over 62 degrees the heatsink is quite hot to touch at this point so the mobo temp readings are accurate.

I have doubled checked and reseated the heat sink many times and I applied other thermal pastes but the temps are generally still on the high side.

Do Deneb CPUs generally run this hot with a decent aftermarket cooler or is my one faulty and should I ask for a replacement?

Thanks
Edited by hdpcgamer2001 - 10/22/11 at 8:43am
post #2 of 14
Could be a dodgy temperature sensor, can you check the CPU in another board?
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post #3 of 14
thats too hot. Is the heatsink hot,... if you touch it?
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post #4 of 14
Thread Starter 
Quote:
Originally Posted by MisterMalv View Post
Could be a dodgy temperature sensor, can you check the CPU in another board?
Unfortunately I don't have another AM2/3 motherboard to test it on.

I was just trying out GTA4 for 15 miniutes to test the temps and although the system was 100%, the temp on both HWMonitor & Core Temp was hovering around 65 degrees celcius!

Is the heat problem likely to be my CPU, my motherboard or the sensors on the motherboard?
post #5 of 14
Thread Starter 
Quote:
Originally Posted by IOSEFINI View Post
thats too hot. Is the heatsink hot,... if you touch it?
Yes, the heatsink is warm at idle and hot to touch at around 60 degrees so it appears to be doing its job. I just can't explain why the CPU is running so hot compared to the rest of my components and I know the Noctua NH-U9B SE2 is up to the job because it does a decent job of even cooling an overclocked i7 920 and mine is not overclocked.
post #6 of 14
I use a 212+ and I'm idling at 27C. 53C under load at 4ghz. Might be faulty temp sensor
Edited by Zeek - 10/22/11 at 9:38am
post #7 of 14
make sure your fan is @ full speed
Edited by IOSEFINI - 10/22/11 at 9:46am
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post #8 of 14
Are you stating the vcore you set it at in the BIOS or what cpu-z reads? Check your vcore in CPU-z, my ASROCK board had crazy overzealous LLC by default (+0.15v) and inaccurate voltage settings (1.5v bios = 1.55v reality).
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post #9 of 14
If you're paranoid about it (like I am), you could always try undervolting & a bit of underclocking... it's what I had to do for a 125w CPU using a 95w TDP heatsink.
 
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post #10 of 14
I guess your fans in the Antec 902 are set on "high"?
Quote:
Originally Posted by Zeek View Post
I use a 212+ and I'm idling at 27C. 53C under load at 4ghz. Might be faulty temp sensor
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