Custom-built PC will not turn on

February 15, 2010 at 23:00:04
Specs: Windows 7
OK i bought PC parts from newegg and received my parts today. i put the PC together and turn the power on and all i got was a blank monitor screen, but the computer was running fine. so i tried restarting the computer, which i had to manually do through the PSU, and still the same thing. I noticed my PSU was not compatible with my GPU because it was only 500w but i needed 550. so i put my 9800gtx+, same thing happens. i checked all the wires and made sure everything was plugged in were it should be. later on i took everything out in frustration and packed it back in the box. I felt bored and took the parts out again and started fresh making sure i did "exactly" what i was suppose to do, and now the damn PC wont even start. I plug the cable into the back of the PSU and a blue L.E.D. blinks 2 times blue, and that's. I don't know what to do, someone help me. please.

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#1
February 16, 2010 at 00:24:31
Ok, take it easy. First u need to benchtest, pull everything out and connect the hardware i'm going to list outside of pc case. take out motherboard,cpu plus heatsink, ram(only one stick),vga card(or if the motherboard has onboard video use it first,keyboard,psu. All of the components connect them outsiden the connect monitor now start the system. What do u see or hear? Black screen? Or beeps? Make sure to apply thermal paste correct and don't reuse the old thermal paste. We know little about your hardware, start by listing your specs. cpu,ram,video card(9800gtx+),motherboard,psu(check the psu label for +3.3v,+5v,+12v i meant amps eg.+12v@30A).

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#2
February 16, 2010 at 13:09:30
raidmax case

intel core i7 860 2.6ghz quad core

6gb ram

1tb HDD

nvidia geforce 285gtx OC

xclio PSU 500W


Also there is no integrated video


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#3
February 16, 2010 at 14:27:11
Test #1 = Mortherboard + 2GB RAM + PSU
- Lights are on (NO BEEPS)
Test#2= MOBO + 2GB +PSU + CPU
- Turns on, CPU Fan running (NO BEEPS)
Test#3 = MOBO +2GB RAM+ PSU + CPU + GPU
- Both are running, No Post.
Test#4 MOBO +2GB RAM+ PSU + CPU + GPU
- I put the speaker in, forgot about it, got 1 long beep and 3 short ones.
Test#5 i put the same as step 2, but in the case
-Failed to even start up. nothing is running.

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Related Solutions

#4
February 16, 2010 at 15:01:05
"I put the speaker in, forgot about it......"

If you mean the case speaker, or the equivalent, in that case, the tests you did before that where you got no beeps need to be done again.

"got 1 long beep and 3 short ones."

That usually indicates a video problem - in this case, a video card is not installed in a slot, or it is installed, but it has a problem.

- unplug the computer or otherwise switch off the AC to the case. You should do that AT ALL TIMES when fiddling with connecting or disconnecting any connection or component inside the case !! ATX mboards are always powered in some places even when the computer is not running !
- make sure the video card is all the way down in it's slot
- some PCI-E video cards have a socket on them that must have a wiring connector from the power supply plugged into them.

All new mboards these days have two power sockets that need to have connectorsf rom the power supply plugged into them - the main 20 or 24 "pin" one, and a smaller one.

Restore the AC power.
Try to boot.

If you still get 1 long beep and 3 short ones, you have probably fried the video card, and/or the PCI-E slot's circuits, yourself.

"I noticed my PSU was not compatible with my GPU because it was only 500w but i needed 550. so i put my 9800gtx+, same thing happens. "

Whatever gpu you were using orginally should have worked anyway, at least before the specific drivers were installed for it. The minimum capacity being only 50 watts less than the minimum recomended for the gpu should have still allowed the gpu to work - but you can run into trouble eventually because the PS is running at 100% or it's capacity much of the time the computer is running when the card is installed.
Generally PSs are not designed to run at 100% of their capacity all the time, and doing that will damage the PS.

When you're a gamer.....
In most if not all cases, the max capacity rating of the PS is an intermittant rating. It's recommended that you do not load your PS to any more that 80% of that rating if you are going to be using something that puts a constant load on it, such as playing a recent game for hours on end. In that case, you multiply the min capacity stated for the system with the particular video chipset on the card by 1.25 to find the min. capacity of the PS you should get.
........

If you get no beeps or a different beep pattern other than one beep or 1 long beep and 3 short ones while the computer is booting...........

then you may have installed ram that is incompatible with using it in your mboard, or it has a connection problem.

Remove the AC power to the case/power supply.
Remove all the ram.
Restore AC power.
Try to boot.
If nothing else is wrong, you will get no video but you will hear a pattern of beeps that indicate no ram is installed, or a ram problem.
E.g. for an Award bios or a bios based on one, that's often a beep of about a half second, silence for a half second, a beep of about a half second, silence for a half second, continuously.
.....


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#5
February 16, 2010 at 16:21:01
i so sorry to waste ur guys time, i appreciate the well put effort to help me out, a complete stranger, when i put my mobo in, i didn't notice i had to put the stand offs in, so basically the mobo sat on the case its self with the metal prongs in contact. so i fried my mobo. ordering a new one. once again, my deepest apologies to the well put effort to help.

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#6
February 17, 2010 at 06:54:23
OK. Good luck with the next one.


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