I think I have been bitten by the PC-silence bug. Its not quite as common as the extreme overclockers bug, but the symptoms are similar: a quest for more silence (or speed) that almost becomes a neverending one.
My system i as follow:
Case: Antec SX830
Case-fans: 5 x Panaflo FBA08A12L
PSU: Antec Truepower 430W
Motherboard: Epox 8KHA+
NorthBridge heatsink: Zalman ZM-NB32J
CPU: AMD XP-1700 Palomino (not overclocked)
CPU heatsink: Swiftech MCXC370
CPU-fan: Powercooler 60mm/3000rpm
Harddisk: 2 x Seagate Barracuda IV
- 40 & 80MB
Graphic card: Abit Siluro TI-4200
Graphic heatsink: Zalman VGA heatpipe cooler ZM80-HP
Ok, heres my story:
First I thought that my 5 Panaflo case-fans running at 12V, and my previous 60mm/4500rpm CPU-fan was too loud. Especially the case-fans (they sure as heck make more noise then 21dB at 12V - I wonder how far away Panasonic placed the dB test-equipment?). If I only do something about that - then Im satisfied. So I changed the case-fan volt-settings to only 7V and swithed the CPU-fan to above Powercooler 60mm/3000rpm.
Then two new (previously hidden) noise-sources popped up: My old Antec PP303XF PSU and my old IBM Deskstar 46.1Gb harddisk. So I replaced to above Antec Truepower PSU and the Barracuda IV 40 & 80Mb harddisk.
Then it happened again; the previously "quiet" Northbridge fan suddenly didnt appear silent enough anymore. If only I change that... So I replaced it with Zalmans passive alternative. Great!
Hmm - one of the two Barracuda IV harddisks emitted a very discrete but continues high-pitch kind of noise. Once I recognized it (and it took a while), it became rather annoing. I decided to only boot up with the 40Mb Barracuda disk, where I have installed the system. It suppose to be somewhat quieter because its only contain 1 disk internally. Sure enough - the discrete highpitch-noise was gone.
Aargh! Now both the 60mm/3000rpm CPU-fan and the very quiet Abit original graphic card-fan seems to bother me. So I slowered the CPU-fan down to 2600rpm with help of Zalman FanMate 1
. This made the noise from the graphic-card stand out even more. So this very weekend Im planning the replace the original Graphic-fan with Zalmans ZM80-HP heatpipe cooler. I hope I finally becomes satisfied because I dont know what else I can change or replace.
Current room-temperature: 20C
Motherboard temperature: 25C
CPU temperature (idle): 41C