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VisionTek 4850 SEARING Hot

post #1 of 22
Thread Starter 
I first noticed how damned hot this card was when I felt the metal of the heatsink. It was abnormally hot in a way that bit your finger in less than a second. I figured it was just because it conducted well or maybe I needed to install drivers. So I installed 5.6 CCC and looked at the temp, and was not surprised to find that something was indeed wrong: the temp was at a sizzling 80 degrees Celsius. (see attachment) Is anyone else with a 4850 getting these temps, or am I the loner here? If so, I'm going to have to take off the heatsink and see what the deal is, probably a sloppy thermal paste job.

Edit: Cleaning off the pre-existing thermal paste and reapplying AS5 did nothing. The temps are back up.

Edited by Pisscrank - 6/19/08 at 8:41pm
post #2 of 22
Thread Starter 
Ok folks, so it seems this guy had a similar problem: http://www.xtremesystems.org/forums/...d.php?t=191096

I'll post back with pictures if anything is wrong with the goop and any improvements from reapplying it.

edit: mods, delete this post if you want so I can edit the first post to contain all information
Edited by Pisscrank - 6/19/08 at 7:25pm
post #3 of 22
no, lots of people get this problem.

i heard someone say that it was because the card's drivers don't know when to tell it to "go to sleep" or power saving mode or whatnot, so its operating at full all the time, so to speak, despite the "load" being 0%...
    
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post #4 of 22
Word is 40ish idle 80ish full load.
    
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post #5 of 22
Well yeah, it's more power hungry then a HD3870 and has a smaller heatsink.
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post #6 of 22
Thread Starter 
Edit: Nevermind! I was looking at the temps when Vista had just started. It's back up to 80.
Edited by Pisscrank - 6/19/08 at 8:40pm
post #7 of 22
Quote:
Originally Posted by Pisscrank View Post
I just reapplied some AS5 and the idle went down to 60 give or take 3. Something was definitely up with the paste. Anyone ordering a VT 4850 should also have some thermal paste ready in case they run into the same situation.

If it is true that the card thinks it's at full load all the time, and the full load temp is 80, then I hope that when this is fixed, my idle temp can be even lower. It doesn't seem too unreasonable given this is 55nm.
All ATI cards since the X18/19 series have had a 2D/3D clock speed and voltage switcher. It may be possible that the card gets stuck in 3D mode, with higher core clocks, or at least voltages.
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post #8 of 22
never mind
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post #9 of 22
Quote:
Originally Posted by AlphaDog11790 View Post
never mind
On the GPU

Hey, I had your post before you edited
    
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post #10 of 22
Thread Starter 
Oh well. Just hope the temps don't damage anything.

On the bright side, I will no longer need to walk to the kitchen to make Ramen anymore.
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