I'm glad to report I managed to fit the AXPII without wrecking my card. I was very nervous
when I turned on the PC after re-installing the card, but thankfully nothing went bang
I would have liked there to have been a cover over the pre-pasted area on the main heatsink to avoid the risk of dust, fingers, etc contaminating it, particularly as you have to wait 5+ hours for the RAM heatsink paste to cure and so the main heatsink is left lying around (I couldn't see a way to put it back in the packaging without something pressing up against the paste), but I think I managed to keep it clean.
I've noticed that the clips on the PCI-E power connectors are right up against the heatsink, which is probably not a problem but I might cut off the clips just in case. It's not like the plugs are going to pull themselves out and I don't think the clips are actually clipped on to anything anyway.
Now, temperatures. Ambient temperature was 23c. Left at stock settings the fan runs at 24% at idle, for a temperature of 44c (this was with dual-screens though, so it was idling at 500/1250Mhz). I can't give exact fan speeds for the stock cooler, but they were fast and loud (my custom fan profile went to 60% at 60c, slowly increasing to 100% by 70c).
I tested with the Furmark 720 Benchmark (no AA, only Dynamic background ticked).
800/1250, max temp 56c (stock cooler 64c), max fan 27%, VRM current 88A (down from 90A with the stock cooler).
email@example.com, max temp 61c (71c), max fan 29%. VRM current 97A (103A).
DispIO 61c, MemIO 63.5c, Shader 66c
As above plus PT 10%, max temp 64c (84c), max fan 30%, VRM current 231A (obviously a glitch!).
As above plus PT 20%, max temp 67c (85c), max fan 31%, VRM current 124A (135A).
DispIO 67c. MemIO 70.5c, Shader 73c
I then set the fan to 50%, which is inaudible over my Nexus 120mm on my TRUE rev.C at 1060RPM and probably my OCZ StealthStream 400W (I'll be able to tell next week, when I replace it with an Antec CP-850) and my Samsung F4. I also switched to single-screen mode.
800/1250 (idle firstname.lastname@example.org):
Idle: 33c, DispIO 33.5c, MemIO 29c, Shader 31c. VRM 4A
Furmark: 2973 49FPS. Max temp 50c. VRM 86A
email@example.com (idle firstname.lastname@example.org):
Idle: 35c, DispIO 35.5c, MemIO 31.5c, Shader 33c. VRM 11A
Furmark at PT 20%: 3744 - 62FPS. Max temp 58c. VRM 123A
DispIO 58.5c. MemIO 60.5c, Shader 62.5c
and then back to dual-screen mode.
800/1250@1v (idle 450/1250@1v):
Idle: 38c, DispIO 38.5c, MemIO 38c, Shader 40.5c, VRM 8A
email@example.com (idle firstname.lastname@example.org):
Idle: 40c, DispIO 40.5c, MemIO 40.5c, Shader 42.5c. VRM 14A
My results aren't quite as good as some I've seen http://hardforum.com/showpost.php?p=103 ... stcount=11
(but that seems questionable and doesn't give fan speed) or http://www.overclockers.com/forums/show ... p?t=676100
(mine are pretty close to those) but I'm not complaining!
At 50% fan speed, the AXPII is quieter (inaudible) than the stock fans were at 10%. They weren't particularly intrusive, but they were noticeable and certainly became more so at 24% (which my fan profile went to at 50c), so I'm actually quite delighted