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October 17, 2010 6:07:53 PM

Okay so after a lot of stress I finally got my first full new build running, an got the bios page up it was happy time... okay so me being stupid instead of taking it apart and securing it in my tower, I decided to install windows 7 outside the tower with the mobo on a cardboard box and a sheet of anti static, I got to the point where I needed a keyboard...so I plug one in while it was live, at this point I hadn't ground my self for about 1hr ( possible static ) an everything went of the screen, so I rebooted it, a got no display, mobo light was green, graphic card led on, all fans spining, ram passed Asus memok check...but failed to get a display, the board has no onboard display so I'm thinking I have no spare stuff to test all the parts, I'm taking it to a local pc shop 2morro,

How likely is it that I fried the mobo or the ram or the video card or the cpu ?

I know this is really a shot in the dark as I have no display an its all lighting up and firing up even all the ports on the mobo seem to work still the keyboard,mice,and usbs I tested it powered on my keyboard mouse and iphone,

so my worst worry is the cpu or video card is dead would video cards leds and fans still spin if it was fried?

thanks for any input on this shoulda got a prebuilt it wasn't a fun exp

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October 17, 2010 6:58:32 PM

What are your full system specs?

Its actually pretty hard to kill something with static so i wouldnt worry about that too much. Try reseating the GPU and see if that fixes it. Do you have a case speaker to hear the beep codes if there are any?
October 17, 2010 7:42:52 PM

Work through our standard checklist and troubleshooting thread:
http://www.tomshardware.com/forum/261145-31-read-postin...
I mean work through, not just read over it. We spent a lot of time on this. It should find most of the problems.

If not, continue.

I have tested the following beep patterns on Gigabyte, eVGA, and ECS motherboards. Other BIOS' may be different.

Breadboard - that will help isolate any kind of case problem you might have.
http://www.tomshardware.com/forum/262730-31-breadboardi...

Breadboard with just motherboard, CPU & HSF, case speaker, and PSU.

Make sure you plug the CPU power cable in. The system will not boot without it.

I always breadboard a new build. It takes only a few minutes, and you know you are putting good parts in the case.

You can turn on the PC by momentarily shorting the two pins that the case power switch goes to. You should hear a series of long, single beeps indicating memory problems. Silence indicates a problem with (in most likely order) the PSU, motherboard, or CPU. Remember, at this time, you do not have a graphics card installed so the load on your PSU will be reduced.

If no beeps:
Running fans and drives and motherboard LED's do not necessarily indicate a good PSU. In the absence of a single short beep, they also do not indicate that the system is booting.

At this point, you can sort of check the PSU. Try to borrow a known good PSU of around 550 - 600 watts. That will power just about any system with a single GPU. If you cannot do that, use a DMM to measure the voltages. Measure between the colored wires and either chassis ground or the black wires. Yellow wires should be 12 volts. Red wires: +5 volts, orange wires: +3.3 volts, blue wire : -12 volts, violet wire: 5 volts always on. Tolerances are +/- 5% except for the -12 volts which is +/- 10%.

The gray wire is really important. It should go from 0 to +5 volts when you turn the PSU on with the case switch. CPU needs this signal to boot.

You can turn on the PSU by completely disconnecting the PSU and using a paperclip or jumper wire to short the green wire to one of the neighboring black wires.
http://www.youtube.com/watch?v=5FWXgQSokF4&feature=yout...

A way that might be easier is to use the main power plug. Working from the back of the plug where the wires come out, use a bare paperclip to short between the green wire and one of the neighboring black wires. That will do the same thing with an installed PSU.

This checks the PSU under no load conditions, so it is not completely reliable. But if it can not pass this, it is dead. Then repeat the checks with the PSU plugged into the computer to put a load on the PSU.

If the system beeps:
If it looks like the PSU is good, install a memory stick. Boot. Beep pattern should change to one long and several short beeps indicating a missing graphics card.

Silence or long single beeps indicate a problem with the memory.

Insert the video card and connect any necessary PCIe power connectors. Boot. At this point, the system should POST successfully (a single short beep). Notice that you do not need keyboard, mouse, monitor, or drives to successfully POST.
At this point, if the system doesn't work, it's either the video card or an inadequate PSU. Or rarely - the motherboard's PCIe interface.

Now start connecting the rest of the devices starting with the monitor, then keyboard and mouse, then the rest of the devices, testing after each step. It's possible that you can pass the POST with a defective video card. The POST routines can only check the video interface. It cannot check the internal parts of the video card.
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