The zalman ZM-STG1 truly rocks

Archangel

Archangel

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Well... i just did about the risty-est thing for what i did with my pc so far.. and that is renewing/replacing the thermal stuff of the Heatsinks of my grafic's cards :)

Before, 54*C Idle 76*C Load ( sometimes a bit higher)
After, 46*C idle 56*C full load (after playing BF2142 for 2 hours is for me the full load ;) )
I was reall afraid it could turn out wrong, and you fry 2 cards at once,.. luckily, everything seems to be in working order, and perfectly cool :)

i think when i get a better PSU now,.. i can overclock the cards on their stock coolers quite a bit.
 
I would recommend getting 8 heatsinks for the memory chips on the card. Those alone let me push the memory clock a further 70MHz.

The new zalman cooler (VF900-CU) that came with those just let me push core clock by 20MHz. Time for a volt mod, I think.
 
Putted the cards on 449 - 1300 ( 430 - 1200 stock),.. ran 3dMark06,. and right after the test the cards were at 53 and 55*C wich is pretty cool, considering they're overclocked :)
 
Oh, just noticed that stock coolers on 7800 gtx's cover the memory.

In that case, I reckon you should be able to push your memory up to 700(1400)MHz, and core to 500MHz.

I've been using ATI Tool 0.25 Beta 14 to find max overclock. It will overclock the memory, then core, until it detects artifacts. These 'max' clocks are in fact too high (I get artifacts with these 'max' clocks on the airship/dragon test in 3DMark06).
 
A little off topic but when I test for artifacts on a OC, I let the test run for 2 mins before I deem the clock succesful. Even just one artifact and I down the clock..... The clocks I have in my sig aren't the highest without artifacts but I like to have a safety zone....
 
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