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Long Haired Git · 07-17-2005, 07:41 PM

I had two radiators each 130 x 150. I had them both shrouded and each with a single 120mm fan. Both were mounted vertically.
With fans on 12v I ran at ambient plus 10 degrees, but with the fans completely turned off, I ran at ambient plus 20 degrees. The latter suited me far more.
This was with a heavily over-volted and overclocked AMD XP1600.

Now my orientation and my shrouds and the fans all meant that the radiators were very poorly setup for fanless operation. Mount them horizontally, free from air obstruction and I am sure they'd do a lot better. You CPU and GPU and drives will have more heat, but I'd suggest that even a horizontally mounted 120.3 sized radiator would do a good job.

When you see the chart of air-flow-vs-temp for radiators, you'll see the graph gets very steep at the zero-end. I'd strongly suggest you install one slow speed 120mm fan. "Tricod" fans [see thread at overclockers.com.au or read the PA160 design thread here) are very, very quiet.

My current case design has a single 120mm fan for the PSU, that sucks air out of the case. All other avenues for air enterring the case have been removed save for the large radiator duct. Still a work in progress I am afraid, so no pickies. However, the noise level for this design is expected to be very, very small and yet performance will be close to the full-on rigs with multiple fans and large pumps. Oh, and yes, my definition of "close".

07-17-2005, 07:41 PM	#11
Long Haired Git Cooling Savant Join Date: Jan 2003 Location: Sydney, Oz Posts: 336	I had two radiators each 130 x 150. I had them both shrouded and each with a single 120mm fan. Both were mounted vertically. With fans on 12v I ran at ambient plus 10 degrees, but with the fans completely turned off, I ran at ambient plus 20 degrees. The latter suited me far more. This was with a heavily over-volted and overclocked AMD XP1600. Now my orientation and my shrouds and the fans all meant that the radiators were very poorly setup for fanless operation. Mount them horizontally, free from air obstruction and I am sure they'd do a lot better. You CPU and GPU and drives will have more heat, but I'd suggest that even a horizontally mounted 120.3 sized radiator would do a good job. When you see the chart of air-flow-vs-temp for radiators, you'll see the graph gets very steep at the zero-end. I'd strongly suggest you install one slow speed 120mm fan. "Tricod" fans [see thread at overclockers.com.au or read the PA160 design thread here) are very, very quiet. My current case design has a single 120mm fan for the PSU, that sucks air out of the case. All other avenues for air enterring the case have been removed save for the large radiator duct. Still a work in progress I am afraid, so no pickies. However, the noise level for this design is expected to be very, very small and yet performance will be close to the full-on rigs with multiple fans and large pumps. Oh, and yes, my definition of "close". __________________ Long Haired Git "Securing an environment of Windows platforms from abuse - external or internal - is akin to trying to install sprinklers in a fireworks factory where smoking on the job is permitted." (Prof. Gene Spafford) My Rig, in all its glory, can be seen best here AMD XP1600 @ 1530 Mhz \| Soyo Dragon + \| 256 Mb PC2700 DDRAM \| 2 x 40 Gb 7200rpm in Raid-0 \| Maze 2, eheim 1250, dual heater cores! \| Full specifications (PCDB)