Quiet videocard cooling option needed

drx9175l

Member
Jan 11, 2002
194
0
0
I've successfully managed to quiet my system down quite a bit. I'm now using a Enermax 300W power supply, a 120mm Panaflo at the front for intake, a matching 120mm Panaflo at the rear for exhaust and a 80mm Panaflo sucking air across the fins of my Alpha 6035- all of this is very quiet. The 40GB Maxtor drive is mounted in a removable drive enclosure and is near silent. The last noise makers are the pair of 40mm fans located on the Voodoo5 5500 AGP. So far I've come up with these possible options:

1. Reduce the amount of noise the fans currently make by lubricating them. How do I do this?

2. Replace the fans with quieter units of the same size. Does anyone know if the Blue Orbs or Crystal Orbs will mount using the push pins and not the thermal tape? Is there a significant amount of thermal transfer lost by using the tape? I know that Tennmax sells the Stealth coolers that will fit, but they're $50 shipped for two.

3. Remove the two fans and mount a 80/92/120mm fan above the AGP slot blowing down on the card. The instructions for the 5500 say that the power supply 4pin Molex plug must be attached for the card to operate. Anyone know if there are problems associated with removing the fans completely?

If anyone else has any ideas I am open to suggestion. Not that it's really relevant, but here are some system specs:

ABIT VH6T
Celeron 1.3GHz
Full tower case
Pictures located at www.pdxpc.tk

Using the Via Hardware Monitoring application the system temperature is normally around 24C and the CPU is always about 10C warmer (34C), either at idle or heavy load. These numbers do not change if the system is run with the case side cover removed. The CPU fan is attached to the Alpha heatsink with a 80mm to 60mm adapter. I know these have been getting a bad rap lately, but mine works. It was not purchased for additional cooling. The two fans in question, a 60mm YS Tech and the 80mm Panaflo, move almost the same amount air- about 28CFM. The difference would be that the larger fan can do it at half the RPM and at a much lower dBA level.
 

Zap

Elite Member
Oct 13, 1999
22,377
7
81
1. Lubricating them won't make them quieter than when new, but will make them as quiet as new if the fan is getting noisy. To lubricate them, remove them from the little heatsinks and blow them out with compressed air. Then, from the side of the fan motor that mounts on the fan frame, remove the little sticker covering the middle of the fan motor. You should see a hole with the fan motor spindle in the middle. Put a drop or two of some lightweight all-purpose oil into the hole (do not use anything in an aerosol can, like WD-40, because those oils are too thin and can dry out). Spray some more compressed air into the fan blades to spin the fan, to distribute the oil a bit, cover the hole with a piece of tape and reinstall the fan.

2/3. If you're wanting/willing to change the fan/heatsink, you can get one here:
http://www.allelectronics.com/cgi-bin/category.cgi?category=270&item=HS-70&type=store
Use arctic silver/alumina adhesive. You'll lose one PCI slot and your AMR slot. If you really need active cooling, you can get a Nidec blower:
http://www.allelectronics.com/cgi-bin/category.cgi?category=220&item=CF-138&type=store