New computer troubleshooting Options

[Maccabee]

I made the mistake of taking apart an old computer and putting it back together. i wanted to gain that experience so that when I come to building my own box from scratch I will understand how. Well I took everything apart and cleared all the dust, and then i put it back together and to my sunrise...it didn't work. I took another look inside all looked for mistakes but couldn't find anything. I did see that I had put the led light cables on the wrong spot on the mobo so I fixed it and tried again. Nothing. So I was wondering if someone could give me a checklist of things that could have gone wrong. When I pres the power button i don't even get a beep. All wires are plugged in. I did remove the fan from the heat sink over the CPU and then put it back in. Could I have messed something up? I have never seen the latching mechanism for the heat sink so maybe it isn't secured. I appreciate the help.

[Maccabee]

Whats a chassis? And how can I give it a new bios? From the time I took it apart and put it back together, when I turn it on there isn't a light, r a fan or any noise. And I took everything apart, and put it back together. Everything.

[illriginal]

Whats a chassis? And how can I give it a new bios? From the time I took it apart and put it back together, when I turn it on there isn't a light, r a fan or any noise. And I took everything apart, and put it back together. Everything.

Ok... The chasis is pretty much all the metal parts of the tower. It's the frame inside... where you screwed down your motherboard onto.. (does that make sense? lol)


Do you have a manual... if not, go to the appropriate manufacturer's website, look up the model of that specific computer (typically on the face of the tower), and download / print / whatever the manual. You want to look for "jumpers". That was the word I had a brain fart on. Anyways, you want to look at the diagram of the motherboard (make sure the motherboard is the same motherboard in the PC, most often, it's not -.-). If the motherboard itself has tiny print labeling each jumper, then match the names. If not, and the mother board is not the same, you need to now look up your motherboard. Typically all motherboards have some sort of (white, gold, black, red, blue, green, silver etc..) print on it that represents the make and model of that motherboard. Google that, get that manual to that motherboard and make sure the jumpers are right.

If the motherboard isn't touching the chassis directly, it could be a bad PSU (I need to know which number is exposed on that "red switch" you flipped).

Does your motherboard have a power button on it anywhere? If so, try turning it on that way, if it turns on, then it's the power button's jumper that's on incorrectly.