no output on homebuild

S

syco123

n00b
Joined
Aug 4, 2008
Messages
15
The history of this home build is a terrible tale and I'm not done yet.

Here is the parts list

Q6600
gigabyte GA-EP35-dS3L
gigabyte 8800GT
Corsair DDR2-800
RCX-Z4 fan
SATA 500b HDD
PATA CD/DVD
TX 650W power supply

I assembled all the part pressed power and all was good. I then screwed up massively. As the HDD formated a cable unraveled and stopped the CPU fan and cooked it.

So I replaced the CPU. I put it into the old board and nothing. I was advised to replace the MOBO so I did, still nothing. There was a defect on the CPU so I sent it back to NewEgg who replaced it (now on CPU #3).

I've just put the new CPU in the new mobo and still nothing.

W ...T....F

3 cpus and 2 mobo later I still get no beep codes, no signal to the monitor (monitor checked with laptop and its oK) . I do get power to the CD/DVD, lights on the RAM (the appear to slowly cycle through a matching pattern), the FDD chatters and then nothing.

Please, anyone who know what might be wrong? I've invested too much to give up on this box and spent too much over the top because of my fkup.

I don't have any spare parts as all the old stuff laying around is too old.
I don't have a friend with a similar PC to swap out parts to check stuff either.

what now?
 
There is a possibility that the other components got screwed in the beginning. Memory maybe, GPU, other. Try removing the RAM, GPU, HDD and see if it the mobo gives you a beep code. Another possibility, the PSU may have been affected someway.
 
I am leaning towards the MB not being properly connected to the case. Double check the case connections to the MB. If you power up the MB without a chip/ram/videocard it should always beep at you. Make sure the internal speakers, as well as the other jumpers are connected properly.
 
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If you have both the 20/24 pin main ATX connector plugged in, AND the 4-Pin ATX12V P4 CPU (OR 8-pin EPS) connector plugged in, then the board should boot fine.

You could test the PSU: Jump start it (on the main atx connector, short the green wire with any black wire, using a paperclip), and see if it stays on. If not, then its probably a faulty PSU. If it works then proceed (though, in rare cases, it may still be the PSU at fault).

Setup everything outside of the case, with the mobo on top of its cardboard box. Plug in only the essentials:
- PSU (namely: main 20/24-pin ATX connector and 4-pin ATX12V P4 CPU Connector (OR 8-pin EPS))
- CPU w/ HSF (don't forget to plug in the fan)
- Single stick of ram
- Videocard if there is no onboard video (and PCI-E power, if needed)
- Monitor
- Keyboard
- System speaker/buzzer (if no onboard one is present)

* Use a screwdriver if your board doesnt have an onboard power switch. Jump (connect) the two power switch leads to turn the power on (hold connected for a few seconds).

If it won't POST, try different RAM slots. If it still won't POST, pull out the ram (so no ram in the system) and listen for error beeps. If none, pull the vidcard and listen for error beeps. If none, re-seat the CPU/HSF and try again. Report back with results if you're still having issues.
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Thanks for the suggestions, I really appreciate your help, I'll let you know what's happening after I get another chance to try everything this weekend.

I'm not sure exactly what you mean here
>You could test the PSU: Jump start it (on the main atx connector, short the green wire with any black wire, using a paperclip), and see if it stays on.

Little worried about frying me or the PSU could I get a bit more detail on this step. Thanks
 
What enginurd is saying is the same thing as how you turn on your pc with the power switch on your computer case. The power switch on the case has 2 wires that run to a 2 pin black female connector. This is the power switch wires. You would connect this connector to the 2 pin male on the mobo according to where the pin is located or indicated on the mobo. When you push the power switch it basically shorts the two pins together and therefore powers up the power supply and the system. You can bypass the power switch on the case by shorting those 2 pin male leads on the mobo with a screwdriver. Or bypass the mobo also by shorting the 2 pins on the main ATX power connector on the power supply.
 
There's not enough current/voltage running through those two wires to fry anything, so its pretty safe. If you want more detail, Google for "jumpstart psu" or "psu paperclip trick" and you'll get a bunch of hits to check out.
 
It was the fircken Graphics card!!

I bought a cheapo card to test it and now it fires up fine. I put the 'fried' cpu in the 'fried' board with the new card and are both are fine as well.

$300 up the swanny! No i have to see how to cut my losses, either complete another build and sell the box or sell the parts.

Anyone want a q6600 and P35 DS3L for cheap? Never overclocked!

At least it posts to the monitor now so I can continue the fun stuff.

Thanks for your help and time.
 
So I bough a HD4850 for a nice price and guess what, It's fkd as well.

I'm having a great time, building is fun!

Thankfully it's a visiontek with lifetime warranty!
 
Hehe. Well, I'm glad you figured out what was wrong, both times. You should have no problem selling that board and CPU on the FS/FT forums.
 
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