4870 Overclocking Thread

[W1zzard]

i didnt follow the whole thread but are you talking about gpu temperature #2 when you talk about "VRM" ? temp #2 is an on-die sensor in the memory controller area.

[r4st4m4n]

i didnt follow the whole thread but are you talking about gpu temperature #2 when you talk about "VRM" ? temp #2 is an on-die sensor in the memory controller area.

I think they are talking about the VRM sensor in everest.

[dejanh]

VRM sensor in Everest

[affiliate13]

Here is a work in progress to get the VRM temps down some. Needs tweaking but maybe worth a look if anyones are too high.

Here

Its not finished as i need to record the temps better over longer testing and i need to fix problem with the angle of the VRM cooler to get even better contact.

[dejanh]

Here is a work in progress to get the VRM temps down some. Needs tweaking but maybe worth a look if anyones are too high.

Here

Its not finished as i need to record the temps better over longer testing and i need to fix problem with the angle of the VRM cooler to get even better contact.

1) You should use FurMark if you want to get maximum VRM temps. Run it in windowed mode at say 1280x1024, stability test setting. About 60-120 seconds in your VRM temps should be maxed out. This also allows you to watch the VRM temps in real time and take a screenshot.
2) I tried the exact same setup as you, with the HR-09 Type 2, but there is no way to make the sink contact the VRMs perfectly unless you shave it or put some plate in between. The damn thing is literally 2mm too wide at the base.

Good idea otherwise. Literally the exact same setup that I did with the HR-03 Good stuff, keep us posted on the results

[dejanh]

Here is a work in progress to get the VRM temps down some. Needs tweaking but maybe worth a look if anyones are too high.

Here

Its not finished as i need to record the temps better over longer testing and i need to fix problem with the angle of the VRM cooler to get even better contact.

Hey, I just found this...

http://www.thermalright.com/new_a_pa...50aHVzaWFzdA==

This damn thing should fit onto the VRMs. The HR-09 Type 4 has a 12mm base width and 61mm length as opposed to the HR-09 Type 1/2/3 which has a 15.5mm base width with 61mm length

[affiliate13]

Hey, I just found this...

http://www.thermalright.com/new_a_pa...50aHVzaWFzdA==

This damn thing should fit onto the VRMs. The HR-09 Type 4 has a 12mm base width and 61mm length as opposed to the HR-09 Type 1/2/3 which has a 15.5mm base width with 61mm length

Thanks i might just order one of those, in the meantime you might like to check post #19 on the link in my sig. i put up some Furmark screenies after levelling out the type2
I think the type4 would be a better match though. i suppose i could use the type2 on my mobo instead so it wont go to waste.

[dejanh]

Thanks i might just order one of those, in the meantime you might like to check post #19 on the link in my sig. i put up some Furmark screenies after levelling out the type2
I think the type4 would be a better match though. i suppose i could use the type2 on my mobo instead so it wont go to waste.

Now that is sexy

So you basically took those fins and thermal-glued them to the bottom of the HR-09 to give it a taller base so that you can level it on the VRMs?

Very nice temps, and exactly what I was trying to achieve with the HR-09. I knew the drop would be significant. Across the board, the drop is huge, from 17C to as much as 73C . That's significant, no wait, insane! I think this should definitely allow for some higher voltages and better clocks now. Can't wait to see more results Can you try to push your card to say 850/1150 and 875/1175 and let us know what happens?