I think i have everything installed correctly. There is a led on the Motherboard that shows if there is power flowing, and it is lit up when i flip the switch on on the back of the power supply. So I know for a fact that the power supply works. When I hit the on button on front of the computer the fans inside spin for about 2 seconds and then stop, there is no beeps or other sounds like it is trying to start up just nothing.
Could the CPU not allow the computer to turn on?
2007-10-04 10:43:41 · 7 answers · asked by Anonymous in Computers & Internet ➔ Hardware ➔ Desktops
your motherboard is shorting out, make sure there are no loose screws laying on/under the motherboard, and make sure you use the raised washers (yellow screws) under the motherboard to case. you cant screw the mother board directly to the case unless it has something thats between the case and motherboard (usually those yellow screws, or white plastic clips)
2007-10-04 11:04:37 · answer #1 · answered by tnynyn 2 · 1⤊ 0⤋
It seems that your PC is immediately detecting an abnormal condition and activating auto shutdown safety feature. It could be cpu safety feature (no fan rpm detected) or power supply is detecting an overload condition on one of the voltage rails and just activating overload protection. Try these:
1. Make sure the cpu fan is connected to to its proper connector on the motherboard and not to system fan.
2. Check if cpu cooler is properly installed such that heatsink does not touch any other electrical component except the cpu.
3. Try a bare minimum set up. NO FDD, HDD or CD drive. This set up should be able to beep once, display POST and open BIOS menu. Reconnect devices one at a time to isolate defective one.
4. If still no boot, dismount motherboard from PC case and make sure that it does not touch any metal part of the case. If PC boots, motherboard circuit got grounded to case. You need to carefully mount the motherboard to the case using the necessary spacers to ensure no contact between circuitry and the case.
If still no boot after the above, motherboard could be defective. Initiate RMA.
2007-10-04 12:19:19 · answer #2 · answered by Karz 7 · 1⤊ 0⤋
If you are in the UK buy a copy of this week's Micromart (or last weeks - I bought it on the weekend) and read the feature on new-build start up problems.
It sounds exactly like the problem that I had a couple of months ago except that mine beeped: Plug the power wires into the "reset" connectors so that the PC starts with the reset button instead of the power button. You might just have a faulty or loose connection to the power button.
2007-10-04 11:12:14 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Yes. If the cpu doesn't have the heatsink/fan attached there is a fail-safe mechanism,(software-hardware), that prevents the system from starting, so the cpu won't burn up in a few seconds. Do you have the style mobo, that has a 20 pin ATX connector, and a 4 pin connector? The four pin is for the cpu,(power). Do you have a good CMOS battery in? Are you sure your memory sticks are seated. Pull them out, re-install just to check. Try the tip's section on Directron.com, and Sysopt.com, and check Hardwaresecrets.com,(plus PCmag.com)
2007-10-04 11:12:13 · answer #4 · answered by Anonymous · 1⤊ 0⤋
make sure you have everything plugged into the mother board right , sometimes you can miss the proper pins by just 1 an it not work,if you use a video card then make sure you didnt get one thats a PCI an your computer not use that
2007-10-04 10:53:07 · answer #5 · answered by panthor001 4 · 0⤊ 0⤋
I think Karz has covered it well. Listen to his post, as it seems the most inclusive.
2007-10-04 12:23:27 · answer #6 · answered by Anonymous · 0⤊ 0⤋
PROBABLY WIRED WORNG.whoops sry caps
2007-10-04 10:46:57 · answer #7 · answered by Krispy 4 · 0⤊ 0⤋