Removing asus 7800gtx HSF

[advancedkill]

Hi

I have an Asus N7800GTX 256mb graphics card. I recently bought a Zalman Dual Heatpipe VGA Cooler (VF900-cu) after reading a good review about it in CustomPC. I have it, but I need ot get my old HSF off. How do I do this? Also, would using Arctic Cooling MX-1 be far better than using the supplied thermal grease?

Thanks!

 

[K404]

Taking off the HSF aint hard man... unplug the HS fan, unscrew the screw(s) between the HSF and the PCI plate, then take out all the screws!

 

[advancedkill]

Ah - I wondered if there was anything important that I may miss out. I heard that there is RAM on the back of the card - is this true? (The new HSF comes with RAM blocks). If so, how would the RAM on the back of the card be cooled with the reference HSF? (I don't see a fan there)

Thanks!

(Oh, and would arctic cooling MX-1 thermal compound be better than the supplied thermal grease. If so, how much should I apply?)

 

[K404]

yea theres RAM on the back...the metal heatsink thats on should be useable with the new heatsink...I think. you`ll have to use your judgement, or post up pics of the new heatsink and someone here should be able to figure it out

Cant say much about thermal pastes...but a thin layer overall the core is al ya need. A small blob, and spread it out with an unwanted bank card or summit.

 

[advancedkill]

Cool - thanks!

I will probably just use the heatsinks supplied witht he cooler for the RAM. Thanks!

 

[advancedkill]

Ok - I installed the new HSF and the card runs perfectly. I'm getting a max of 55 degrees C instead of 85, which is very good. THe fan is also quieter than the referenc HSF, even when at max speed. Being lazy I used toilet roll to clean off the old thermal paste and applied new "thermaltake thermal paste", as I didn't want to use the supplied thermal grease and couldn't find any MX-1 paste. Sorry about the large pictures! I would definitely recommend the Zalman VF-900cu GPU cooler.

Here's some pics:

Removing the old HSF and putting on the new HSF:



GPU top no HSF:



GPU top with new HSF:



GPU bottom with no HSF:



GPU bottom with new HSF:



Thanks for the advice!

 

[imported_Mullet]

looking nice mate...I fitted my Vf700 zalman cooler in the same way...I removed the ram cooler plate which was on the back of the card.