Originally Posted by DerComissar
You're really well-experienced in cooling tweaks! I've had some Acceleros myself, they are good coolers. The glue-on sinks for the vrm's and memory weren't so great, but I've heard that cards like your Sapphire can use the original plate for vrm and ram cooling. Those are excellent quality thermal pads you're using, as well as the tim. But the Acceleros aren't cheap, and you've got your stock cooler performing very well.
Even on water, I stick with 1200/1600, like you said the gains beyond that are marginal for gaming. I used to set the voltage about the same as yours, around 1.225v. for those clocks, I think the modded bios I'm using from kahboom is at about the same voltage, for my ASIC. I recently switched from the File 2 1200/1500 bios to the File 1 1200/1600 bios for my 24/7 settings. It's been very convenient not having to use software to clock the 7950's anymore, as I'm quite happy with 1200/1600. That's probably an optimal speed and voltage for your card as well, although you have your memory clocked higher at 1700, it looks like very good ram on your card.
Oh yeah I forgot to tell. When I received the Arctic cooler these days and I saw the sinks I instantly ordered a set of these
and glued them to the card with this
I can advice you one thing. If you ever are going to use the thermal glue make sure to use the sinks you are willing to use permanently because you cannot take them off after the glue hardened.
I used the same glue on my 4870 vrm sinks and when that card died I wanted to take the sinks off. I literary pulled the vrm's from the PCB. Good glue.
The ram on my card is cooled by the main block which is also on the gpu core, so I cannot use that when I go aftermarket.
But like you said the stock cooler is pretty good. So I will probably not take the hustle to go aftermarket. Not worth the money for the small gains.
Originally Posted by GigaByte
are your vram chips hynix AFR? MFR? or elpidas? & whats your vddq?
those vrm temps are fine for the amps going through them they can take well into the 90's.
They are hynix. Haven't made a note which ones though. Voltage on them are 1.5v.
If I clock the card at 1225 core with 1.28v the current coming out of the vrm's are about 175-180a