Problems with my power supply?

[bieler123]

I just bought a complete new system and I am running
BIOSTAR TFORCE4U nforce 4 ultra motherboar
AMD 64 3500+ cp
eVGA GeForce 6800GS pci-
1 GB ddr 400 sdram

The problem that I am having is that I had the system running for
couple days and it was working fine. I then started to try an
overclock the CPU with the overclocking utility that came with th
motherboard which is located in the BIOS. I overclocked the CPU o
the lowest setting which brought my processor speed from 2.2 Ghz t
2.5 Ghz. Once I restarted the computer, it seemed to run fine fo
about 30 min. until it just shut down on it's own and now I can'
seem to start it back up. I have a 450 W power supply also. I wa
also trying to overclock the video card at the same time too. I a
just wondering if overclocking the CPU that much higher caused th
power supply to short out or did I actually burn out the motherboar
or CPU. I also noticed that even though when I press the on/of
button, the computer won't turn on, there are still two red LED'
that are lit up on the motherboard near the front of the case.
appreciate any help you guys can offer.
:crybaby

 

[JAD]

clear the CMOS with the jumper and unplugged

 

[Dave]

clear the CMOS with the jumper and unplugged

Not a bad idea, but I'm not sure it will help. Even a severely overclocked
system should do -something- when the front panel power switch is pressed.
There isn't a lot to go on in the OP, but to me, this sounds like a sudden
power supply failure. The overclocking attempt may or may not be related to
the power supply problem. But if it is a power supply problem, overclocking
didn't help any.

I'm not sure a typical 450W power supply could handle the OP's rig, whether
overclocked or not. I would want to see at least ~26A or better available
on the 12V rail(s), if I was building a similar rig. There aren't too many
power supplies in the 450W range that could handle that. Not that I've seen
anyway.

Now granted, the system will probably pull nowhere near 26A continuously,
but power supplies aren't rated to run near peak output continuously,
either.

I suspect (could be wrong) that the power supply was over-taxed as soon as
the system was first started up, and that it happened to fail (maybe
coincidentally) shortly after he started overclocking. -Dave

 

[Guest]

BIOSTAR TFORCE4U nforce 4 ultra motherboard
AMD 64 3500+ cpu
eVGA GeForce 6800GS pci-e

it was working fine. I then started to try and overclock the CPU
with the overclocking utility that came with the motherboard
which is located in the BIOS. I overclocked the CPU on
the lowest setting which brought my processor speed from 2.2 Ghz to
2.5 Ghz. Once I restarted the computer, it seemed to run fine for
about 30 min. until it just shut down on it's own and now I can't
seem to start it back up. I have a 450 W power supply also.

Did you unplug the power cord for at least a minute to reset the
overload protection?

What are the brand, model number, amp ratings at each voltage, and UL
or CSA registration numbers (Exxxxxx or Lxxxxxx)? I ask for the latter
in case the brand is unrecognized. It's possible this is not really a
450W supply because your system probably drew no more than 300W,
probably less, but many low qualitly supplies can't sustain that, even
if rated for 600W.

 

[JAD]

Not a bad idea, but I'm not sure it will help. Even a severely overclocked
system should do -something- when the front panel power switch is pressed.

if its completely out of wack the system will not boot. especially memory
voltages and timings

 

[bieler123]

Thanks for the replies. The first thing that I did was to clear the
CMOS and that didn't do anything. I also took the power supply out of
the computer, had it unplugged all night and just tried hooking it
back up, but it still won't come on. The specs on my power supply are
this:
Xion power supply
model # LC-B450E
+3.3V - 28A
+5V - 45A
+12V - 18A
- 12V - 1A
- 5VSB - 2.5A
E164554

I was also wondering could this have damaged the CPU, memory, or
some other component, or won't I find that out until I get a new
power supply.

 

[Guest]

The first thing that I did was to clear the
CMOS and that didn't do anything. I also took the power supply out of
the computer, had it unplugged all night and just tried hooking it
back up, but it still won't come on. The specs on my power supply are
this:
Xion power supply
model # LC-B450E
+3.3V - 28A
+5V - 45A
+12V - 18A
- 12V - 1A
- 5VSB - 2.5A
E164554

www.ul.com's online certifications directory shows the UL number,
E164554, is for L&C Technology, meaning Deer, a maker of several brands
of low quality supplies. Deer supplies have been known to cause damage
when they fail, but most likely a new supply will restore your
computer. Fortron-Source makes very good supplies under several
brands, including Sparkle, yet they're also among the cheapest. A 350W
Fortron should have no problems running your equipment, and a 400W
definitely will have none.