New Power Supply causes High-Low beeping

[auslaender]

Hi!

Can't figure this one out. The fan in the old power supply was making funny noises, so I decided to replace it. With the new power supply installed, the PC starts a "high-low" beeping sequence that just keeps repeating. The computer boots fine, but the beeping continues.

I removed the new power supply and put the old one back in--no beeping. Put the new one back in, beeping started again.

Any ideas?

Many thanks!

 

[Jubble]

The first thing to do is look in your motherboard manual or on the manufacturers website what the high low beeping sound means: usually the speaker will sound a different alert for different problems, if you can identify what your pc thinks is wrong that would be the best place to start.

 

[auslaender]

Hi Jubble!

Thanks for replying. I already did what you suggested. As far as I can tell, that beeping code means that the BIOS thinks that something is wrong with the CPU--not seated, or kaput. If I got the error with both power supplies, then I'd think that was the problem, but the beeping only occurs with the new power supply.

I'm still stumped!

 

[Jubble]

Im no expert, (i got my own pc troubles), but what i would hazard a guess at is that your new power supply is probably causing the processor to not work properly (ie. the voltage is too high/too low).

You say your computer gets to windows and works ok??? if you can download and run this:

http://www.stvsoft.com/

It should tell you your voltages while your pc is running windows; i think the processor is on the vcore rating and should be around 1.3-1.8 (check on google what your cpu requires).

Like i said im no expert but this is where i would start looking.

YOu could always just cut the wires to your case speaker

 

[auslaender]

Hey that sounds like a good idea! At least I could compare the voltages of the new and old power supplies and see if there are any differences. I'll try it and let you know what happens. (And I did disconnect the case speaker...who can troubleshoot with that incesscent beeping?

Many thanks!

 

[linux_0]

Please post your system specs.

CPU
Motherboard
RAM
HDD
VGA
Monitor

and anything else you think might be relevant.

Does your system use a 20pin ATX or 24pin ATX v2.0 connector? Does it use the P4 +12VDC 4pin connector? Is it plugged in?

If you have a digital multimeter you can take some readings and see if you have the right voltage on your 4pin molex connectors and the ATX PWR connector.

Or you familiar with electronics?

Semper Fi carry on