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HELP! Low Voltage on 3.3V Line - Beeps on 3D!

Whenever I play 3D games or run 3D tests like 3DMark 2001 SE, my BIOS alerts me constantly with 2 differently pitched beeps in no apparent pattern. Drives me nuts. The display looks fine, so I don't know if it's my CPU, memory, or AGP video that's complaining. The beeps are irregular, so no chance of decyphering a beep code error.

Both Asus Probe and Motherboard Monitor are reading 2.9XX-3.008 V on the 3.3 line. Screenshot here I have a Turbolink 420 Watt PSU, which is brand new but could be defective (won't know til I swap it out tomorrow). The other voltage levels look ok accordig to Asus Probe and MBM. Is 420 Watts enough for the following system?

- P4 2.4b, Asus P4PE, 512MB 2700 RAM (not overclocked)
- TI4600 (not overclocked)
- 3 Hard drives (non- RAID)
- 2 IDE DVD/DCRW devices
- 2 PCI cards (including ATA100 controller card)
- 3 case fans (excluding fans on PSU, CPU, and video card)
- cold cathode tube
- NOTE: because of wiring & connection limitations, I did use 2 Y-connectors to add additional 4-pin device plugs. It's a big mess in there with the device plugs, fan power taps, and cold cathode inverter - but it should be ok).

Also, the Asus accepts 3 conections for power: one 20-pin clip, one 4-pin ATX 12V connector, and an optional "Asus EZ Plug" (which is basically any 4-pin device plug). All three of them are connected securely on my mobo. I tested the following power plug combinations and got the voltage results shown:

- All 3 (20-pin, 4-pin 12V ATX, EZ plug): 2.9XX V (fluctuating)
- 20-pin, EZ plug: 2.9XX V (fluctuating)
- 20-pin, 4-pin 12V ATX: 3.008 V (stable)

I know others had 3.3V problems but the archived threads don't yield a lot of solutions (most end with "thx dude I will try a new power supply" and you never see another post - does this mean a new PSU fixed it?) Any help would be appreciated.
 
I have the same problem while running the UT flybys. I researched before and couldn't find anything. Maybe your thread will yield more results. 🙂

btw, I have the same power supply.
 
I had the same problem, a new power supply fixed it for me. I used a sparkle 300w model FSP-ATV power supply
 
TonyB, did you say you replaced your TurboLink 420 with a Sparkle 300? Or do yuo just mean you replaced a Sparkle 300 with another and all was good after that?

JuicyFruit, what else do you have in your system (so I can compare load)?

I am switching out for another 420 today, but want to know what I should do if I still see the same problem. Go to a higher watt PSU? Exhange mobo?

Also, are you guys running your computers off of a UPC or surge protector?

Thanks for the replies.
 
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