If you have any compatible PSU, try swapping that to see if it helps. If you have a multimeter, you could also measure the voltages at one of the unused power connectors. This doesn't rule out a bad PSU though because a meter can't see everything, but at least it sees the average voltage on the lines you can probe.
Try holding <DEL> while powering up. Also try <INS>. One of those (or perhaps some other key) might force a reset, I had that "fix" an Asus board once.
I don't know for sure with Packard Bell, but generally I'd expect a beep code if the BIOS code is executing. So if the speaker is connected properly and there's no beep, I think that limits the problem to power, motherboard, CPU, and BIOS. RAM or Video issues should trigger a beep code, unless Packard Bell is different.
Stiletto wrote:emosun wrote:
If memory serves that's just an Intel serial number (or something) and not the actual part number for the motherboard. The actual model number is probably elsewhere. I could be wrong though.
I think it's a regulatory code or something like that. Intel put that same number on seemingly all of their motherboards for a few years. Since Intel didn't label their boards prominently, this generally gets misinterpreted as the model name. One can find an awful lot of E139761 motherboards on eBay/Google. 😀
