Hey guys, I've been trying to install a new pc, but I can seem to get it to turn on. When I first tried it, the power button lit up for a second then went off, and I'm getting no signs of power from anything. I've installed all the right parts and am pretty sure I've gotten everything connected right. I've tried switching power cords and ensuring the connections are not loose, but nothing seems to work. What could be the cause of this? Oh, and I've also tried different power supplies--one that I know works.
2007-07-10 18:03:07 · 9 answers · asked by austin 2 in Computers & Internet ➔ Hardware ➔ Other - Hardware
The RAM is fine; I've tried different types. The motherboard is brand new(is there some way to check if it's working?) It's all custom built so I can't really take it back to the store, but I can take the parts back to New Egg, though I'm really wondering if it's just me connecting some wires wrong. Would jumpers have anything to do with it?
2007-07-10 18:22:23 · update #1
Check if CMOS jumper is in the shorted position. Put the jumper in normal position. Also make sure processor cooling fan is plugged into the proper connector and not on the system fan connector. Check that heatsink does not touch any electronic component except the processor case.
OR try running with bare minimum set up. No FDD, HDD, ODD, no devices on PCI slots and just 1 stick RAM. PC should turn ON and you should be able to go to BIOS menu. Reinstall the devices one at a time. The device that causes a failure to start is the defective one.
If PC still does not turn on, unscrew the motherboard. Turn ON PC w/ motherboard not touching any metal part of the PC case. When a portion of the motherboard gets shorted to the case, the power supply will see this as an overload and immediately go on auto-shutdown (a safety feature).
2007-07-10 18:51:59 · answer #1 · answered by Karz 7 · 0⤊ 0⤋
I would hazard a guess at two choices:
1) The most likely is that when your power supply blew, it took part of the Mother Board with it. Common enough problem when the PSU's blow, and only fairly recent/high end PSU's have the circuit to prevent Mother Board damage. Fits your fault profile as well: If you leave the computer plugged in the motherboard still draws power (some even have little lights on the MB to show you this). If the fault is with the motherboard then it may be more likely to fail when it is warm than cold. So unplugging it and allowing it to cool, even just a little, may be enough for the fault to rectify itself and alow it to boot. I wouldn't vouch for its stability when it was running either!
Answer? change the Motherboard for an identical one so that Windows doesn't notice. (makes life so much easier!).
Choice 2 would mean that you were Very Unlucky:
2) You bought a power supply that is either a) broken b) too low powered to power everything:
a) If you know someone with a spare PSU, ask to borrow it and try it out. If the fault remains, see 1 above. If it goes away, take the new PSU back and ask for a replacement. Like everything else, some things are just broken when you buy them.
b) A bog standard off the shelf PC will run quite happily at 250W (unless you brought a gaming one from the get-go). But as soon as you start adding things, especially high-end graphics, start thinking of 350W to 500W. If your power overheads are marginal, then maybe the PSU will manage to get it to boot one day, but not the next.
Good luck!
2007-07-11 01:06:55 · answer #2 · answered by scott&kenny 4 · 0⤊ 0⤋
either ur power supply doesn't have a high enough voltage or the jumpers on ur motherboard arn't placed in the right pins. u should try using the manual for ur motherboard and if it's not ur motherboard, u will need to buy a new power supply and u should get around 500-600 watts
2007-07-11 11:08:01 · answer #3 · answered by Drekentai 3 · 0⤊ 0⤋
My dad would know this but he taught me well...if its a BRAND NEW take it to the store and return it...but if its not then take out ALL the cables plug them back in...if that doesn't work dust everything off and clean Everything in the computer.Check to see if the fan is running power supply check to see if the monitors on..that's all i know to help you.
2007-07-11 01:11:08 · answer #4 · answered by monsterman2488 2 · 0⤊ 0⤋
Might be just a bad PC, take it back to the store. Some place give u a limit on the returns of a pc. Don't wait to long.
2007-07-11 01:07:32 · answer #5 · answered by sassytahoe 2 · 0⤊ 0⤋
If it's new, it doesn't matter what the problem is. It's under warranty and the company owes you a replacement PC or part. Contact them.
2007-07-11 01:18:28 · answer #6 · answered by Josh M 3 · 0⤊ 0⤋
Try plugging the power cord into the wall, kid.
2007-07-11 01:05:55 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Buy a Mac. You wont be dissapointed.
2007-07-11 01:06:05 · answer #8 · answered by friddydope 2 · 0⤊ 1⤋
incomparable rams?
2007-07-11 01:14:04 · answer #9 · answered by wayne 2 · 0⤊ 0⤋