68-7800 series cooling mod.

[Thanatos]

I first saw it here http://www.hardforum.com/showthread.php?t=953049.
Basically you take the aluminum plate and ziptie/screw/tape a 60 or 80MM fan on the heatsink (like the fan from your stock cpu heatsink). Here is a pic of my 6800GT. It dropped my temps 4-5 degrees idle and loadand my overclock is now 406/1110 with no artifacts. I used 3M double sided tape to mount mine. Im going to try a 80mm fan i have lying around tonight.
http://img132.imageshack.us/img132/9317/fanmod6mq.jpg

[BAM!]

that seems a little too much work for me for 4 degrees drop :D..... none the less.. nice job, keep it up. let us know how the 80 turns out.

[Zefram]

I think you should plugged off the GPU fan, since it wont serve any purposes there.
The GPU fan should blow the air across the fins, and since you've mounted a fan there, it's wise to disable the GPU fan.

[Thanatos]

yeah i unplugged it after i took the pic. Some people with this mod have seen 8-10 degrees drop in thair temps.

[omga14]

yeah i did that a long time ago for my 6800GT. it works. i'm not gonna do it that way with my 7800GT though. i'm just going to remove my cover plate and let these do the work this time>
http://img445.imageshack.us/img445/4227/picture7fv.jpg (http://imageshack.us)
gonna try it with the card fan plugged in and unplugged. the card i have coming has a copper heat sink so i may see better temp drops from stock as copper dissipates more heat but needs the according cooling to remove that heat better than with aluminum. i'll be posting results in a couple of days. it was shipped this morning but coming all the way to Hawaii. so maybe saturday.

[stlouis1]

man, i did that sh1t first, theres gotta be someone here who remembers my 5 slot cooler composed of a nvsilencer heatsink tie-wrapped to an 80mm tornado, now that made a difference in temps, i did after all reach 454/1186 on air

edit// heh, found the link, http://forum.pcstats.com/showthread.php?t=29421&highlight=nvhairdryer

[in54n3]

i put a 120mm fan on my 5600 awhile back....i think i posted that

[omga14]

the point is gentlemen it's an old idea. i was thinking of just going a different route rather than attatching a fan directly to eliminate the dead zone. i may make a shroud somehow to keep the disipation of air directly on the card and out the case. 2 relatively quite 80mm fans should do quite well.

BTW STLOUIS I THINK YOURS WAS THE FIRST ONE I SAW. I COPIED WITH MY TORNADO:D

[stlouis1]

:D i just bought a new case. i mite be putting a hole in the bottom for exhaust and run a duct from the vc heatsink to the tornado, i may try replacing it with a 120mm suckin air though the heatsink fins => duct = and right out of the case. ill be experimenting with a cardboard sidepanel to start before i cut any holes, then ill decide which way to go, or scrap the idea, i have a few more that may work nicely

[AzN]

hmmmm... i'll think about doing that. anyone want to give me a spare fan?? :D

[stlouis1]

pay the shipping, n i think i have a few at home somewhere

[evil_penguin]

I just took my msi 6800gt and replaced the stock thermal past with artic silver 5, I used to have a idle of 57-58c and after playing bf2 for 1 hr it would reach the 80c in load. after changing the past had a idle of 50c for a week or two, now idle is 54-56c. :confused: I think the thermomiter is screwed up. over clocking is not good either, I can reach 410/110 (havn't bothered to puch up) but I get artifacts in f.e.a.r. demo, runs fine in halo, but in bf2 the textures on sand bags blend, sort of like water or ice... very weird any one else have this problem? also placed a PC Case PCI Slot Exhaust Fan Blower on top of it so the intake faces the pcb. I think my 74gig raptor is in the way of the exaust from the video card fan, all the hat air is pushed to the area were the power buttons are in my tsunami dream.

[Zefram]

I just took my msi 6800gt and replaced the stock thermal past with artic silver 5, I used to have a idle of 57-58c and after playing bf2 for 1 hr it would reach the 80c in load. after changing the past had a idle of 50c for a week or two, now idle is 54-56c.
You should apply the AS5 properly....... too much AS5 will have negative results, and there are certain steps to maximise the heat transfer....... read it HERE (http://www.arcticsilver.com/arctic_silver_instructions.htm)
AS5 just help to transfer the heat from the GPU>Heatsink, so if you have a useless/below average-grade heatsink, AS5 wont help much......

Plus, update the card driver to see whether the irregularities in the BF2 is fixed - it may be a software bug rather than a hardware ones :p

[ElrichMeister]

thats why i use ceramique for GPU's