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GTX 670 waterblock on a GTX 970 - Page 25

post #241 of 409
Quote:
Originally Posted by fwupow View Post

I just tried applying a slight over-clock and ran Heaven. Initially the clock-speed went up accordingly but then fell back down to the same 1270 MHz area where it was while running Heaven before the OC was set.

GPU-Z shows "PerfCap Reason" (Performance Cap Reason) as "Thrm" (Thermal) the vast majority of the time with only brief moments of "Util" and other stuff. So 80°C is the ceiling where throttling kicks in and it certainly appears that the potential of this 'reference design' PNY card for over-clocking can't be realized if sticking with the stock heatsink & fan.

EDIT: I don't know what I'm doing obviously. So the GPU fan is capable of 4333 rpm but the BIOS auto control only lets it rev up to 50%. By using Afterburner to over-ride the fan control, I was able to cool the GPU down quite a lot and add more clock. It was running at about 1400 MHz on the core and 1800 MHz on the memory. Much more fussing is in order, but it looks to me now like the main advantage to water cooling is quietness since the fan gets rather whiny and bothersome over 2K rpm.

That's actually been well-documented by Anantech as 80°C being the thermal limit with a hardcapped fan, for noise-related reasons. With watercooling you should be able to get equal or better cooling, without the noise, so your overclock should be good for general use.
post #242 of 409
I've got my EVGA 970 finally arrive biggrin.gif I'll by trying with a EKWB next week. I'll update once I get the chance.
post #243 of 409
Has anyone heard from anyone if the 670 blocks will fit the MSI blower model? I can't find any pictures of the PCB anywhere to compare.
post #244 of 409
Quote:
Originally Posted by Phantatsy View Post

Right on! thumb.gif
I'm assuming that means the reference cards like the PNY?

Yes, that would be correct. However it has already been confirmed by Squirrelly that a 670 full cover block would work on a PNY 970. For EK, they are already in the process of making a new full cover 970 block that'll work with those, so you could just wait for that one.
post #245 of 409
Quote:
Originally Posted by El Scotch View Post

Has anyone heard from anyone if the 670 blocks will fit the MSI blower model? I can't find any pictures of the PCB anywhere to compare.

Based on the port outputs and the PCB length, it looks like a GTX 980 PCB. Possibly with the full 6+1-phase power design rather than the base 4+1 design in reference 980s...
post #246 of 409
Quote:
Originally Posted by ZeDestructor View Post

Based on the port outputs and the PCB length, it looks like a GTX 980 PCB. Possibly with the full 6+1-phase power design rather than the base 4+1 design in reference 980s...

Well, I bought one, so I'll post a picture of the PCB when I get it.
post #247 of 409
Quote:
Originally Posted by El Scotch View Post

Well, I bought one, so I'll post a picture of the PCB when I get it.

Hehehe. Please post a picture of the top in particular. Stuff like VRMs and inductors can be changed by vendors, and those can play havoc with waterblocks... as we all know...
post #248 of 409
Quote:
Originally Posted by ZeDestructor View Post

Hehehe. Please post a picture of the top in particular. Stuff like VRMs and inductors can be changed by vendors, and those can play havoc with waterblocks... as we all know...

Maybe the luck gods will smile on me and it'll fit the 980 reference block.
post #249 of 409
El Scotch, may I ask where you bought the MSI OCV1 GTX 970? I'm highly interested in getting one as well, given it's a blower design, which also seems to be of better quality than the simpler Palit or Gainward solutions. The problem is that this exact model seems not to be widely available yet in retail, or at least that's what Google suggests.
post #250 of 409
Quote:
Originally Posted by CrazyNightOwl View Post

El Scotch, may I ask where you bought the MSI OCV1 GTX 970? I'm highly interested in getting one as well, given it's a blower design, which also seems to be of better quality than the simpler Palit or Gainward solutions. The problem is that this exact model seems not to be widely available yet in retail, or at least that's what Google suggests.

I ordered it from NCIX (Canada). It can be found here on their US site, but is on pre-order status there.
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