No-POST problem after upgrading CPU

[bmillerd]

System specs:
Windows XP
Enermex 330W PSU
barton 2500
1gb kingston value ram
Gigabyte GA-7N 400 Pro 2
Radeon 9550
Maxtor 60GB 7200.8 hdd


I had it running fine lastnight, reformatted and was updating and whatnot without a problem. I rebooted it several times during the process of updating drivers with no problems.

Today I opened up the case to turn a fan around (had it the wrong way heh). I had to pull the front part of the case off because it was a 120mm in the front.

So once I'm done I try to boot it up, the green power light comes on but nothing else. No HDD LED, no power to the fans or anything. The RAM LED light on the motherboard, however, is on also. Is this a PS problem or a motherboard problem? If so, what could have caused it?

<edit>

The PSU is 3 or so years old, but as I said was working fine lastnight

 

[Zap Brannigan]

Do you have a spare CPU that is compatible with your mobo? If so pop it in and see if it posts.

 

[bmillerd]

yeah I do, but if the CPU was the problem wouldn't the symptoms be different?

 

[bmillerd]

and the plot thickens...

I took out the battery and let it sit for 10 mins, put it back in, it booted up fine....

help?

 

[resStealth]

may have been a bios or cmos issue and they may have just needed clearing

 

[Brule]

EDIT: Looks like it is working.

 

[bmillerd]

heh, I forgot to mention the most important part.

Shut it down again and now it won't boot back up =P

 

[Zap Brannigan]

Sounds like a CMOS issue. Glad you're up and running.

 

[Blazer]

try another battery,weak or defective will cause this

 

[bmillerd]

heh so now it's running again...I think you're right Blazer, battery seems to be the problem. Thanks a lot, I never would have thought of that 🙂 I'm going to go out right now and replace the battery, see if that helps.