One of my friends has asked me to configure a new system for him, and I'm running into some issues with speccing something that will meet his standards and mine.
Anyhow, here's a partial list of what's going in it:
- SUPERMICRO MBD-C2SEA-O (Intel G45) mobo
- Core 2 Duo E8500
- nVidia GeForce GTX260
- Corsair 550w PSU
- CoolerMaster Centurion 590 case
He needs to set this system up to be very, very quiet (absolute silence isn't a requirement per se, but the closer the better), but it also has to operate in a room that can hit 35*C in the summer. To meet my standards-and since I'm speccing it, it needs to meet my standards as well as my friend's-the CPU must not exceed 55*C and the RAM and all of the components on the mobo need to stay at or below 50*C under 100% load (defined as both CPU cores and the GPU running flat out, along with heavy RAM access) at an ambient temperature 5*C higher than anything the computer is likely to ever see, whilst the GPU and all components on the graphics card need to stay below 65, and the hard drive's temperature must be no higher than 40*C even during heavy, continuous access.
My major concern right now is finding a CPU heatsink; I'm considering the HR-01 Plus, the Xigmatek HDT-S1283, the Scythe "Orochi" SORC-1000, the Thermalright SI-128, the Arctic Cooling Freezer XTREME and the SilverStone NT06-E
The thing is, the Supermicro board has very, very tiny heatsinks on the northbridge and the voltage regulators. Because of that, I'm concerned about using a tower heatsink, which will, I believe, reduce the airflow across both the NB and the PWM heatsink to, near-as-makes-no-difference, nothing.
Adding a fan to the 120mm side panel mount above the CPU area would help counteract this, to an extent at least, but all of the tower heatsinks save for the Arctic Cooling unit (which uses a proprietary fan of questionable silence and only manages ~0.14*C/w, if that, with the fan running flat out @ 1500rpms) are too tall to allow that. The Scythe heatsink is too tall to run any fan at all as far as I know-either on the heatsink or the side of the case-and only musters an even more abysmal ~0.25*C/w according to FrostyTech's testing @ 85w with the stock fan. And while the SI-128 and the SilverStone heatsink would provide some cooling for the mobo, I'm not convinced that either of them can keep an E8500 @ 100% load within about 10*C of ambient.
Other than that, does anyone know if heatsinks that will fit the GeForce 9800s will work on the GTX260?
Any suggestions would be appreciated, however, I'm stuck on a few points:
-Changing the motherboard for something with a more elaborate cooling setup is not an option. Every "consumer level" board I've worked with in the past 2 years-from ECS, ASROCK, ASUS, MSI and Gigabyte-has been unmitigated crap. I will not buy one or recommend one again, to anyone, for any reason.
-Swapping the NB and PWM heatsinks on the SuperMicro board is presumably a non-starter, simply because on my X7DCA-L they appear to be glued down as well as clipped, and I'm sure the ones on the C2SEA are the same)
-Liquid cooling is not an option; a good water cooling setup is out of my friend's budget and he has concerns about their reliability.