TheWeaseL
10-29-2003, 11:14 PM
Ok, here's the story. I have 4 Panaflo 120mm fans, draw just short of 8 watts a piece. Now I hooked all 4 of them through a DPDT switch so I can run them either at 12v, or 7v. 7v is my choice for running day to day since they are much quieter then at 12v in which they turn out around 45dba a piece...So I wire it all up, tape up my connections. Now the switch is off. I turn on the PC, so far so good. Flip the switch to 12v, system dies. Like it has a short. So then I reset everything on my system, power it up, try for 7v, system dies. Now I tried leaving it on 12v, and powering up, just to make sure. Everything would power up for a second then die, but if I would press the power button several times, it would catch and power up, no problems. Then for a while, I could flip the switch all day without a problem. Then it died again when I flipped it. So it doesn't appear to be a short...
I've had this problem before, but it turned out that I had cranked my voltages too high inside the PSU, and after backing them off a bit, everything worked. Is it possible that my psu can't keep up?
It is a sparkle 400 watt, powering:
NF7-S 2.0, has vdd mod, set to 1.9v
1 gig of ram
Barton 2500 @ 217x11.5, vcore set to 2.03 in bios, gives 1.95v actual.
1 40gb HD
1 120gb HD
1 CDRW
1 DVDROM
2x TT SF II's
4x 120mm Panaflo fans
Soundblaster Audigy 2
Right now, I have the fans running @ 7v, and my 12v is at 11.85v, and my 5v is at 5.25v...:/
Any help would be great here...
I've had this problem before, but it turned out that I had cranked my voltages too high inside the PSU, and after backing them off a bit, everything worked. Is it possible that my psu can't keep up?
It is a sparkle 400 watt, powering:
NF7-S 2.0, has vdd mod, set to 1.9v
1 gig of ram
Barton 2500 @ 217x11.5, vcore set to 2.03 in bios, gives 1.95v actual.
1 40gb HD
1 120gb HD
1 CDRW
1 DVDROM
2x TT SF II's
4x 120mm Panaflo fans
Soundblaster Audigy 2
Right now, I have the fans running @ 7v, and my 12v is at 11.85v, and my 5v is at 5.25v...:/
Any help would be great here...