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XFX 7800gt overheating help.

post #1 of 2
Thread Starter 
Hey guys, first post here.

Well I am a little confused, as my 7800gt I have owned for over 3 years now, is spiking during gameplay. The interesting part is it was never a problem untill very recently.

About one year ago I had to ditch the stock cooler fan and retrofit a fan over the hole, which actually worked very well. Recently I have noticed a huge spike in temperatures, to 50C unloaded, and 90C (peak, 80C avg) during load. This is at stock clock speeds. I have had this card overclocked before, and never before have I run into temperature problems that actually caused the game to artifact so badly I could not even see to quit the game.

The second I alt-tab the temps drop to 60C's almost instantly.

There is no obstruction blocking the copper heatsink. Case temps are 85deg F.

Any advice? Is it possible the stock thermal past under the heatsink has degraded? I have no idea why the card is acting this way right now.

Thanks,

Dudeman
Ol'Faithful
(13 items)
 
  
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3700+ 64 @ 2.59GHz | 1.41v DFI LANPARTY UT nF4 SLI-D GeForce 7800 GT Stock Clock 1x2 OCZ Pref Series @ 3-3-3-8 
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Ol'Faithful
(13 items)
 
  
CPUMotherboardGraphicsRAM
3700+ 64 @ 2.59GHz | 1.41v DFI LANPARTY UT nF4 SLI-D GeForce 7800 GT Stock Clock 1x2 OCZ Pref Series @ 3-3-3-8 
Hard DriveOSMonitorKeyboard
Seagate 250 sata Maxtor 200 ATA Windows XP Prof SP2 Sylvania 19'' LCD Mitsuko - Generic 
PowerCaseMouseMouse Pad
Thermaltake 450w Custom Old Microsoft Optical USB SolidWorks Pad 
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post #2 of 2
Well, you have had this card for quite a while so it sounds like it could easily be dust clogging up your heatsink or cloaking your fins and reducing heat transfer efficiency, try getting yourself a can of compressed air or "air brush" as it is sometimes labelled and try to blow the dust out of the heatsink. i recently used this on my cpu cooler which i have only had for a couple of months and it still removed enough dust to make a 2c difference so i would definately give that a shot.
Edited by DirektEffekt - 11/21/09 at 5:05am
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My System
(21 items)
 
  
CPUMotherboardGraphicsGraphics
i7 4790K 4.8GHz @ 1.306v (Actual) ASUS Maximus VII Gene Gigabyte GTX 780 Galaxy GTX 780 
RAMHard DriveHard DriveCooling
16GB G.Skill Ares (4x4GB @ 1866MHz OC'd to 2133) Samsung 840 Evo 500GB WD Black 2.5" 750GB EK Supremacy EVO Acetal 
CoolingCoolingCoolingCooling
Aquacool NeXXos UT60 240mm Radiator EK XE 360 Radiator x 2 EK-FC780 GTX Ti Acetal /w Backplate and Reinfor... 8 x EK Vardar F4 
CoolingOSMonitorMonitor
EK MOSFET ASUS M7G Acetal Nickel Windows 8 x64 Pro Dell U2711 (2560*1440) Dell P2715q 
KeyboardPowerCase
Ducky Shine 3 Year of the Snake Edition Corsair AX1200 Thermaltake Cube X2 
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