Man of Honour
After reading the "7800GTX Cooling Solution" thread, I'm thinking about doing something along the same lines with my 7800GT. I have the fairly common 100% fan speed issue and I want it fixed.
The heatsink on this revision of the XFX 7800GT seems good. From the weight, I'd guess it's all copper.
The idea is to remove the plastic cover to expose the heatsink, disconnect the fan on it and fit another fan directly onto the cooler.
In the above thread and in linked forums, this seems to dramatically reduce temperatures. I can see that - the stock fan is very small and has extremely narrow blades, so it can't be shifting much air. Even with the dead spot in the middle, I can see how it would work.
However, I might want to RMA the card at some point. I have no qualms about lying to XFX about having modded the card, since they sold me a malfunctioning card.
So I'm looking for a way to attach the fan that won't mark the heatsink and which will withstand the temperatures. I've used silicon sealant for a similar purpose before now, as it doubles as vibration absorbing material to reduce noise, but it's a bugger to clean off and I'm not sure how it would handle the repeated heating and cooling cycles it would be exposed to in this situation.
If it's viable...what size fan? 120mm would shift more air at a given noise level, but the dead spot in the middle would be bigger.
Seems too good to be true...
The heatsink on this revision of the XFX 7800GT seems good. From the weight, I'd guess it's all copper.
The idea is to remove the plastic cover to expose the heatsink, disconnect the fan on it and fit another fan directly onto the cooler.
In the above thread and in linked forums, this seems to dramatically reduce temperatures. I can see that - the stock fan is very small and has extremely narrow blades, so it can't be shifting much air. Even with the dead spot in the middle, I can see how it would work.
However, I might want to RMA the card at some point. I have no qualms about lying to XFX about having modded the card, since they sold me a malfunctioning card.
So I'm looking for a way to attach the fan that won't mark the heatsink and which will withstand the temperatures. I've used silicon sealant for a similar purpose before now, as it doubles as vibration absorbing material to reduce noise, but it's a bugger to clean off and I'm not sure how it would handle the repeated heating and cooling cycles it would be exposed to in this situation.
If it's viable...what size fan? 120mm would shift more air at a given noise level, but the dead spot in the middle would be bigger.
Seems too good to be true...