Help with a new Intel Build!!

[The5Venomz]

Hello all, I spent a few hours last night putting together a new computer for my nephew. I get everything together and I turn on the power. Everything powers up for about 10 seconds, then powers down, then powers back on for 10 seconds and back off again. This repeats over and over again. I get no video and there are no error code beeps. I'm in the US and the the PSU is set to 115v. When I switch the PSU to 230v, the computer powers on, and stays on, but I still have no video, and there is no error code beeps. I got him two video cards for crossfire, but I only have 1 hooked up for now. I've tried both video cards, in both PCI-E slots. I've taken the memory out, tried 1 stick, tried the diffent slots. I've tried to boot with nothing except memory and video card. I've tried just about everything I can think of except pulling the CPU out and reseating it. Any suggestions? Here's the components I'm using:

Intel Core 2 Quad Q6700
ASRock P45XE Motherboard
4GB OCZ PC8500
Powercolor AX4830 512MB Radeon HD 4830 X 2
Seagate 250GB SATA HDD
Lite-On SATA DVD Burner
Rosewill TU-155 II Case w/500W PSU

 

[Farva]

Have you tried a different power supply?

 

[The5Venomz]

Have you tried a different power supply?

Unfortunately I don't have any spares that have power connector for the video card. I'm going to try to get a hold of PSU tester.

 

[Dangman]

I'm in the US and the the PSU is set to 115v. When I switch the PSU to 230v, the computer powers on, and stays on, but I still have no video, and there is no error code beeps.

The last time I switched a PSU to 230V, I fried a PC.

Anyway, I can tell you right now that Rosewill PSU is NOT enough quality power to power that rig for long. Replace the PSU no matter what, even it turns out it's not the cause of your current problem. You don't want the PC to die a few months from now do you?

Anyway try these steps:

If your system doesn't POST...

This is basic troubleshooting if your system has never POSTed (as in, you just put it together); Though, it may be helpful to others whose system no longer POSTs...

If you have both the 20/24 pin main ATX connector plugged in, AND the 4-Pin (or 8-pin) ATX12V P4 CPU connector plugged in, then the board should boot fine (unless it requires more power connectors from the PSU). First, try clearing the CMOS w/ the proper jumper or button.

The next thing you could do is 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 you can proceed with the suggestions below. ***NOTE: The paperclip trick is a simple test for those that do not have PSU testers, multimeters, nor a spare PSU to test with. It is not a 100% conclusive test of the PSU.

How to test with a multimeter @ BFG

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; The 4-pin should work in the 8-pin EPS12v plugs, too)
- CPU w/ HSF
- Single stick of ram
- Videocard if there is no onboard video (along with its power connector, if it has one)
- System speaker/buzzer (your board may have an on-board tweeter/buzzer/speaker)
- Monitor & Keyboard

Reset/Clear the CMOS by following the instructions in your mobo manual.

* Use a screwdriver if your board doesnt have an onboard power switch. Jump the two power switch leads to turn the power on.

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 and HSF, then try again. Report back with results if you're still having issues.

 

[The5Venomz]

That's some great advice...I bought a Best Buy Brand PSU this evening to test...He'll be ordering a better PSU if that turns out to be the problem, hopefully that's all that's wrong...thanks again...

 

[Sojuuk]

That's some great advice...I bought a Best Buy Brand PSU this evening to test...He'll be ordering a better PSU if that turns out to be the problem, hopefully that's all that's wrong...thanks again...

i recall a [H] review of all BB brand psu's not long ago, consensus was they're all crap and are incapable of putting out their rated watts and amps. I believe all of them failed the [H] tests.

 

[The5Venomz]

Damn, well hopefully I can at least get it to post from the Best Buy PSU...then I'll at least know if it's the PSU.

 

[The5Venomz]

All I had it do was clear CMOS lol...thanks for all the help guys...