Just upgraded, need help :(

[Krazie]

Hello

I just upgraded my old P4 2.4c system as it's been outdated for awhile and started having problems. I upgraded to a gigabyte ga-ep45-ud3p, with 4gb ram, and E7300. (yeah I know not the best but money is tight). Anyway I got everything together again, and it won't post. I've unplugged everything minus the CPU. When you plug it in you see no flea power at all. I'm not sure if that board has a flea light, but I thought all did... I haven't been keeping up, you can kick my ass for that later

When you push the power button it starts to cycle, the front and rear fans power on, and the heat sink fan starts to move, to the point where it is getting a jolt saying the system is on, but the fan doesn't spin yet. After approx. 3 seconds everything turns off. After another 5 seconds everything turns on and repeats the above.

Any idea what could be causing this?

Thanks

 

[knothead34]

what is the rest of your system. if its in your sig its not coming up on my screen at the moment. need more info on what power supply you have ....brand...etc.

 

[Krazie]

GIGABYTE GA-EP45-UD3P LGA 775 Intel P45 ATX Intel Motherboard - Retail
CORSAIR CMPSU-400CX 400W ATX12V V2.2 80 PLUS
Seagate 750GB Sata HD
4x CORSAIR XMS2 1GB DDR2 800/PC2 6400 (had left over from another build)
Intel E7300 CPU
7900 GS PCI-e X16, 256MB (was just laying around)

 

[engiNURD]

From the Basic Troubleshooting Guide STICKY thread:

... 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: (this is also known as a barebone bench test)
- 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 molex or PCI-E power connector, if it has one)
- System speaker/buzzer (your board may have an on-board buzzer/speaker)
- Monitor & Keyboard

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

* Use a screwdriver if your board doesn't have an onboard power switch. Jump the two power switch leads to turn the power on (connect both pins for 1-2 seconds with something conductive).

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.