How slow is your cpu fan running?
Moderators: NeilBlanchard, Ralf Hutter, sthayashi, Lawrence Lee
How slow is your cpu fan running?
Just out of curiousity, what RPM is your cpu fan running (cpu fully loaded) and what sort of cpu / voltage is it cooling?
I keep being amazed at my own setup:
AMD Athlonxp 256kb cache 1980 mhz 1.54v
120mm Papst 4412FGL fan ducted to Thermalright SLK900A at 420RPM (below self starting voltage ) You can almost count the revolutions.
the max socket temp reported under prime is only 58 degrees with the internal cpu diode at 63..64.. I had diode temps up to 80 without prime failing so there is considerable margin left!
What do you guys get?
Niels
PS: I'm still using Thermalright supplied thermal paste.. Apparantly this Shin Etsu stuff (holding in my hands) is worth another 2 or 3 degrees.. or rather worth another 50rpm less
I keep being amazed at my own setup:
AMD Athlonxp 256kb cache 1980 mhz 1.54v
120mm Papst 4412FGL fan ducted to Thermalright SLK900A at 420RPM (below self starting voltage ) You can almost count the revolutions.
the max socket temp reported under prime is only 58 degrees with the internal cpu diode at 63..64.. I had diode temps up to 80 without prime failing so there is considerable margin left!
What do you guys get?
Niels
PS: I'm still using Thermalright supplied thermal paste.. Apparantly this Shin Etsu stuff (holding in my hands) is worth another 2 or 3 degrees.. or rather worth another 50rpm less
Whoa, that's some crazy low speed (~ 10 CFM?). That is truly awesome though.
My system's got a Zalman 7000 on an AXP-M 2400+ @ 2.35GHz running at 2,300-2,800 rpm, Abit FanEQ- (on an Abit KV7) controlled (triggers max speed at 111F/44C socket temps but more concerned about 140F/60C+ PWM temps). It's fairly quiet at 2,300, but at max speed, the high pitch of the ball bearings is heard.
On my grandmother's system (an HP Pavilion A230n) w/ an AXP 2800+, a Vantec Aeroflow runs speedfan-controlled between 3,600-4,000 rpm to keep the CPU temp under 135F/57C degrees. It is FAR quieter and better than the stock heatsink (w/ a 70mm 4,500rpm Delta - OUCH!) that came with the machine. The CPU is good to 167F/75C+ degrees, but I want it to last.
My system's got a Zalman 7000 on an AXP-M 2400+ @ 2.35GHz running at 2,300-2,800 rpm, Abit FanEQ- (on an Abit KV7) controlled (triggers max speed at 111F/44C socket temps but more concerned about 140F/60C+ PWM temps). It's fairly quiet at 2,300, but at max speed, the high pitch of the ball bearings is heard.
On my grandmother's system (an HP Pavilion A230n) w/ an AXP 2800+, a Vantec Aeroflow runs speedfan-controlled between 3,600-4,000 rpm to keep the CPU temp under 135F/57C degrees. It is FAR quieter and better than the stock heatsink (w/ a 70mm 4,500rpm Delta - OUCH!) that came with the machine. The CPU is good to 167F/75C+ degrees, but I want it to last.
-
- SPCR Reviewer
- Posts: 8636
- Joined: Sat Nov 23, 2002 6:33 am
- Location: Sunny SoCal
-
- Posts: 580
- Joined: Sun Aug 11, 2002 3:26 pm
- Location: USA (Phoenix, AZ)
-
- SPCR Reviewer
- Posts: 8636
- Joined: Sat Nov 23, 2002 6:33 am
- Location: Sunny SoCal
Athlon 64 2.2Ghz Newcastle core, Arctic Cooling Silencer 64 Ultra TC.
At night, cooler house, drops below 666 RPM (lowest the motherboard sensor can go) usually 32-36 degrees.
During the day, sub 900 RPM, usually 39-41 degrees.
And all the way up to 1600 RPM @ 62 degrees maximum ever hit.
The box says between 1000-2500 RPM.
It turns itself of if I take the side off of the case.
Andy
At night, cooler house, drops below 666 RPM (lowest the motherboard sensor can go) usually 32-36 degrees.
During the day, sub 900 RPM, usually 39-41 degrees.
And all the way up to 1600 RPM @ 62 degrees maximum ever hit.
The box says between 1000-2500 RPM.
It turns itself of if I take the side off of the case.
Andy
Athlon XP2800+ @ 2200 MHz, heatsink from CoolerMaster Aero7+ (all copper), 80mm Nexus:
- browsing etc: 900rpm, 41C socket, 48C diode
- CPUburn: 1150rpm, 50C socket, 62C diode
Athlon 1GHz, large alu heatsink of distant CoolerMaster origin, 80mm Nexus:
- light load (ftp, database): 900rpm, 50C heatsink through AeroGate sensor (mobo sensor long broken)
Off-topic: these heatsinks are the only place I've ever used silicon fan gaskets with some success.
- browsing etc: 900rpm, 41C socket, 48C diode
- CPUburn: 1150rpm, 50C socket, 62C diode
Athlon 1GHz, large alu heatsink of distant CoolerMaster origin, 80mm Nexus:
- light load (ftp, database): 900rpm, 50C heatsink through AeroGate sensor (mobo sensor long broken)
Off-topic: these heatsinks are the only place I've ever used silicon fan gaskets with some success.
-
- Posts: 968
- Joined: Fri Jan 07, 2005 7:13 pm
- Location: Bristol, UK
- Contact:
-
- SPCR Reviewer
- Posts: 2696
- Joined: Thu Dec 11, 2003 9:53 pm
- Location: Scarsdale, NY
- Contact:
If you see the Staff Rigs sticky in the Gallery, you'll see my former silent rig fan a Pentium 4 2.0A at full voltage with an SP-94, fanless. I utilized a cold air duct and negative air pressure to pull cold air across the heatsink, rather than installing a new fan on it. This was easily done with a low heat output video card, a fanless 9600, and a 2.5" laptop drive inside a SilentDrive, so I used masking tape to seal off all openings except the side duct to maximize air flow. Besides the undervolted 80mm AcoustiFan exhaust, there was the PSU fan too, a slow-spinning undervolted 120mm AcoustiFan.poohbear wrote:Just wondering, those of you running on 0 rpm and who aren't underclocking ... do you have any other fans running in your case? (including if you are using watercooling)
The new system that has since replaced that one has a 2GHz NewCastle, undervolted at stock speed, with fanless XP-120, again ducted and flowed using negative air pressure. The new build also has a fanless 6600GT, to which I installed a VM-101. The hard drive remains the same, a SilentDrive-enclosed 2.5" drive, and again, I used masking tape to seal off most openings. This time, however, because I have an undervolted 120mm exhaust fan as well as a 120mm PSU, I left an opening from the back panel beneath the exhaust, along side the side intake duct, so that I can cool both, the CPU and the GPU, using negative air flow.
One day when I have time, I'll add this new build to the gallery...
-Ed
The 120mm fan in the PSU is the only fan in the system. Can't check the RPM's (and don't particularly care) but it only runs at about 4.5v, so it can't be going that fast.poohbear wrote:Just wondering, those of you running on 0 rpm and who aren't underclocking ... do you have any other fans running in your case? (including if you are using watercooling)
AMD Athlon XP 2500+ (Barton) @ stock speed, Vcore 1.475V (reads as 1.50V with lmsensors),
HSF: CNPS 7000A-AlCu modded w/ Nexus 92mm fan, running @ 5.1V (Fanmate2 @ lowest setting). My guess is that that's around 400-500 RPM.
EDIT: This is the second Box in my sig. It's folding 24/7. See my post in the Gallery for more info.
HSF: CNPS 7000A-AlCu modded w/ Nexus 92mm fan, running @ 5.1V (Fanmate2 @ lowest setting). My guess is that that's around 400-500 RPM.
EDIT: This is the second Box in my sig. It's folding 24/7. See my post in the Gallery for more info.
Last edited by JanW on Sun Feb 27, 2005 12:23 am, edited 1 time in total.
Wow, well hope to add mine to the list soon too! So it seems everyone is using at least one 120mm fan in their system still. That's what I'm hoping to do, now that they've come out with fanless PSU's which is a long way from my last upgrade a few years ago when I spent $200 to import a Q-technology one from quietpc in the UK!
Hopefully by my upgrade in the next few years, they'll come out with fanless CPU coolers without the need for any additional fans at all.
What's a VM-101 by the way?
Hopefully by my upgrade in the next few years, they'll come out with fanless CPU coolers without the need for any additional fans at all.
What's a VM-101 by the way?