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Temp on X2 3800+

K

Krumm

Junior Member
Been a long time Northwood user and couple of days ago, took the plunge and purchased a X2 3800+, my first AMD CPU.

I put the system together and have successfully overclocked it to 2.3 Ghz and everything runs rock solid. However, the temp reading I am getting is quite alarming.
From my experience with Intel CPU and different brands of M/Bs, I know that different M/Bs can report varying CPU temps so I am hoping this is the case but still, the temp seems quite high.

I am getting 47c idle and when I have 2 instances of prime 95 running, I am at 74c load.
Everything has been running rock stable for 5 hours now under load.

The M/B is in a mATX case but is fairly well ventilated. Here is my equipment list.

m/b: Foxconn NF4k8MC-EKRS
ram: Corsair Value ram 512mbx2 (running at 166mhz divider)
CPU Heastsink: MCX6400-V with 80mm ADDA fan running 60% - 100% under speedfan.
My m/b doesn't have vcore adjustment so its at CPU default.

the CPU heatsink fan is set to go full speed at 60c.


Is my temp for this m/b too high or is it that my particular m/b reports higher temps?
Can anyone who has the same m/b report their temperature reading?

I guess I'm just a bit worried that my computer might start smoking...
 
I would open the case and touch the HSF, if it's really at 74c the heat sink should be very hot to the touch (can't hold your finger on it long)
 
Originally posted by: GuitarDaddy
I would open the case and touch the HSF, if it's really at 74c the heat sink should be very hot to the touch (can't hold your finger on it long)
Click to expand...

I would advise against that. If it's really 74C, you run a good chance of getting a second or third degree burn. Just move your hand NEAR the HSF unit and see if the air is overly warm.
 
Originally posted by: Krumm
Guitar Daddy,

Do I touch the copper base part or the aluminum blade part or both?
Click to expand...

The cooper base is where the heat is, but like Bona Fide says proceed with caution. Hold your finger close to it and see if there is heat radiating from it first.
 
Another problem could be bad thermal contact between the heatsink and the cpu's heat spreader. If this is the case then the heatsink wont be hot.
 
Originally posted by: Furen
Another problem could be bad thermal contact between the heatsink and the cpu's heat spreader. If this is the case then the heatsink wont be hot.
Click to expand...

Exactly. If your CPU is truly running at 74C the HS will be relatively cool as it is more than likely not making contact.

You did apply T.I.M on the processor as well right?

Additionally, are you sure you have the HSF on right.

Simply touching the HS real quick, even if it is really hot will not burn you. If it is hot enough you will jerk away a 2-3 seconds later. Touch it real quick but dont hold your hand there.

-Kevin
 
thanks guys for the tips. When I get home, I'll give it a try. But I'm pretty sure that heatsink is on correctly, as the copper base of the heatsink was pretty hot when I was testing the computer out.
 
The motherboard also may be reporting bad temps. My Abit board reads about 15c high !
 
if I don't overclock, if I remember correctly, idle was at 46c and load was around 65c or so... but I didn't burn test it with dual prime 95 instances like I am right now... I didn't raise the vcore so I'm thinkin it's probably about the same...
 
Sounds like your heatsink is not put on properly. Just reseat your HSF and use a newer thermal paste/ goo especially like arctic silver 5 . Is your case ventalition good? having a good rear outtake fan right behind your cpu, and an intake on the front?
 
I would turn your puter off immediately..... why risk ruining a good chip cause 74C is way to high. You should not go above 65c on these chips.

Open up PC and remount the heatsink.

If no temp change, look for newer bios and flash that.

Then play with overclocking & see if you still got these temp problems.
 
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