hiro24
  •  hiro24
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2007-02-06T18:07:52Z
Hello... hardware n00b.. sorry.

I think my problem stems from an underpowered system, but I'd like to get the experts opinion, so here goes..

I've got a PC, Pentium 4, socket 478, 1.6GHz, with at 300 watt power supply. Recently I picked up at socket 478 Pentium 4 Prescott 3.0GHz CPU. I swapped out the CPUs and... nothing. System powers on, but no display, no beeps. The, I believe its, the CPU light, and one of the CDROM lights has a constant light to it, but no POST, nothing.

My thoughts on the possible problems are:

1. CPU requires more power than my PSU is generating (I've already got 2 cdrom drives, hard drive, and an AGP card that draws power directly from a power plug)

2. Motherboard BIOS may be too old, perhaps needs to be flashed?

3. Or a combination of the two

So, what are your thoughts on this, guys?
giantjoebot
2007-02-06T18:23:50Z
I think that its your motherboard is just old. My X had a P4 system that only had a 133mhz fsb, and I think your mobo might be the same. The CPU you got should be made to go with a 200mhz fsb. You could try a bios flash, but I think that you might just need to invest in a new mobo, one way or another. Its just a guess, and I could be wrong.
hiro24
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2007-02-06T18:33:42Z
But wouldn't it throttle back to a speed it could use?
Elsparrow
2007-02-06T18:36:41Z
Yes it would.

I think you might not have enough power, or your board doesn't support the Prescott chips. What board do you have?
hiro24
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2007-02-06T18:40:55Z
I'm not sure. I looked it over for about 10 min, but couldn't find any distinguishing features.. just an average red motherboard.. bought it off a friend.
hiro24
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2007-02-06T18:56:15Z
I'm a bit of a hardware n00b when it comes to the newer hardware and compatibility, etc.. can a board support a P4 socket 478 CPU, but not a P4 socket 478 Prescott CPU? If so, can a BIOS flash fix that, or is this strictly a "I need a new board to make this work" problem?
kid007
2007-02-06T19:08:24Z
I would say is a combination of both, MOBO and PSU. If you really like the prescott a Average MOBO and PSU together would not go more than $100 so give it try. let us know what you decided
hiro24
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2007-02-06T19:13:33Z
I've already sunk 80 bucks on the processor, plus another 140 on a video card. I could swing the 100 bucks like you said for a new mobo-psu (priced it on newegg), but I'm leaning towards cutting my losses and returning the CPU if I can't get it working without more hardware...