Power Supply beeps and shuts down

cary78 · 06-30-2008, 01:02 PM

Hi all,

Hoping I can find some help here. These forums look extremely in depth and thinking this is the place. Forgive me if similar issues have been brought up and I am repeating a problem. Anyway...

Computer has been running fine for about 2 weeks now and I have made no changes to it recently besides installing new video card (Nvidia) drivers and Nvidia motherboard drivers (not bios). I played it for a few hours, maybe even a day or two after that with no problems.

But starting yesterday - I turn the pc on... within 15 seconds the power supply starts to beep and the display on the power supply starts to flash. Specifically the "+5v" number flashes and the number displayed is around 5.5 or 5.6. Shortly after - the system shuts down (presumably the power supply is shutting itself off).

What did I do? What can I do? I took out one of my 2 video cards and I had the same problem. Even unplugged one fan, assuming I was drawing too much power but it is still happening. Any help would be extremely appreciated.

Thanks in advance!

sopranodx10 · 06-30-2008, 02:13 PM

Hello and welcome can you pls post your specs and a link to your power supply

cary78 · 06-30-2008, 04:56 PM

Hi and Thanks sopranodx10

As I can't keep my system up long enough the following is from my 1 yr old invoice:

Intel Core 2 Duo E6600 2.40
ASUS P5N-E SLI NFORCE 650I SLI MB
APEVIA QUARTZ ALUM 650W PS
2x EVGA GEFORCE G8800GTS 320MB PCI-E
2x GEIL 1024 MB DDR2 PC6400 MEMORY

I do not know if this link will work.. it is the closest thing I could find... t hough I'll keep looking for a better link...
http://aspireusa.net/product.php?pid=217&xcSID=

Thanks!

wrench97 · 06-30-2008, 05:40 PM

As a rule of thumb any of the rails should be within 5% of the rated voltage so the 5v rail should be between 4.75 and 5.25 your power supply is shutting it self down to protect your system.
It's also a little light for dual 8800 cards I expect to see a good quality 750w.
See this thread: Power Supply Information and Selection

cary78 · 06-30-2008, 06:06 PM

Lucky me...

Maybe the power supply is just shot... i tried booting up with individual ram sticks, changing slots, and whatnot - just on a whim - and after 3 or 4 restarts (though now without the +5v beeping/flashing) it is still shutting down... only faster - and with no obvious warning. So more problems with this damn machine...

Thanks for any assistance but now I'm not sure what the problem is...

wrench97 · 06-30-2008, 06:19 PM

Do have access to another power supply to try in it?
But being as you were getting the alarm from the PSU I think thats your problem.

magnethead · 06-30-2008, 11:01 PM

Yes, see if you can get your hands on a larger testing PSU.

A good replacement unit would be a Thermaltake TOUGHPOWER (TP only) 750w unit. Sounds like the unit is detecting the 5 volt overvoltage and shutting down to prevent damage.

06-30-2008, 01:02 PM	#1 (permalink)
cary78 Registered User Join Date: Jun 2008 Posts: 3 OS: WinXP	Power Supply beeps and shuts down Hi all, Hoping I can find some help here. These forums look extremely in depth and thinking this is the place. Forgive me if similar issues have been brought up and I am repeating a problem. Anyway... Computer has been running fine for about 2 weeks now and I have made no changes to it recently besides installing new video card (Nvidia) drivers and Nvidia motherboard drivers (not bios). I played it for a few hours, maybe even a day or two after that with no problems. But starting yesterday - I turn the pc on... within 15 seconds the power supply starts to beep and the display on the power supply starts to flash. Specifically the "+5v" number flashes and the number displayed is around 5.5 or 5.6. Shortly after - the system shuts down (presumably the power supply is shutting itself off). What did I do? What can I do? I took out one of my 2 video cards and I had the same problem. Even unplugged one fan, assuming I was drawing too much power but it is still happening. Any help would be extremely appreciated. Thanks in advance!

06-30-2008, 02:13 PM	#2 (permalink)
sopranodx10 Registered User Join Date: Jun 2008 Posts: 16 OS: xp 32 bit SP2	Re: Power Supply beeps and shuts down Hello and welcome can you pls post your specs and a link to your power supply

06-30-2008, 04:56 PM	#3 (permalink)
cary78 Registered User Join Date: Jun 2008 Posts: 3 OS: WinXP	Re: Power Supply beeps and shuts down Hi and Thanks sopranodx10 As I can't keep my system up long enough the following is from my 1 yr old invoice: Intel Core 2 Duo E6600 2.40 ASUS P5N-E SLI NFORCE 650I SLI MB APEVIA QUARTZ ALUM 650W PS 2x EVGA GEFORCE G8800GTS 320MB PCI-E 2x GEIL 1024 MB DDR2 PC6400 MEMORY I do not know if this link will work.. it is the closest thing I could find... t hough I'll keep looking for a better link... http://aspireusa.net/product.php?pid=217&xcSID= Thanks!

06-30-2008, 05:40 PM	#4 (permalink)
wrench97 Tech Hardware Team Join Date: May 2008 Posts: 3,342 OS: XPSP2	Re: Power Supply beeps and shuts down As a rule of thumb any of the rails should be within 5% of the rated voltage so the 5v rail should be between 4.75 and 5.25 your power supply is shutting it self down to protect your system. It's also a little light for dual 8800 cards I expect to see a good quality 750w. See this thread: Power Supply Information and Selection __________________

06-30-2008, 06:06 PM	#5 (permalink)
cary78 Registered User Join Date: Jun 2008 Posts: 3 OS: WinXP	Re: Power Supply beeps and shuts down Lucky me... Maybe the power supply is just shot... i tried booting up with individual ram sticks, changing slots, and whatnot - just on a whim - and after 3 or 4 restarts (though now without the +5v beeping/flashing) it is still shutting down... only faster - and with no obvious warning. So more problems with this damn machine... Thanks for any assistance but now I'm not sure what the problem is...

06-30-2008, 06:19 PM	#6 (permalink)
wrench97 Tech Hardware Team Join Date: May 2008 Posts: 3,342 OS: XPSP2	Re: Power Supply beeps and shuts down Do have access to another power supply to try in it? But being as you were getting the alarm from the PSU I think thats your problem. __________________

06-30-2008, 11:01 PM	#7 (permalink)
magnethead Tech Hardware Team Join Date: Mar 2006 Location: TX Posts: 2,029 OS: XPH, 2K My System Blog Entries: 2	Re: Power Supply beeps and shuts down Yes, see if you can get your hands on a larger testing PSU. A good replacement unit would be a Thermaltake TOUGHPOWER (TP only) 750w unit. Sounds like the unit is detecting the 5 volt overvoltage and shutting down to prevent damage. __________________ AIM me: MAGNET794 For proper support: what are you running? video card, cpu, m/board, ram, power supply, brand, wattage, any error message? PCI-E requires 26 amps at 12 volts. That's a 650W PSU. Power Supply Info and Selection . Info on thermal compounds & application . TEST PSU USING MULTI-METER