New built pc wont turn on....

theFSB · 22 May 2006 at 17:12

Guys,

Just built my new system, all brand new parts etc.

Intel Pentium 4 950 Dual Core "LGA775 Presler" 3.4GHz

Asus P5WD2 Premium Intel 955X (LGA775) PCI-Express Motherboard

Patriot Low Latency 1GB (2x512MB) PC5300 667MHz DDR2 Dual Channel Kit

my current GFX card is the Sapphire ATi Radeon X1900XT-X 512MB which i am obviously keeping.

PSU - Enermax Liberty 620W

Now then, i rig it all up and when i power on everything spins up, but i get no monitor output, I have tried and tested everything I can, and have narrowed it down to the CPU or Mobo (as its unlikely to be RAM)

Tested GFX Cards, Reset CMOS etc.

Its either Mobo, CPU or RAM causing it. As they are the only untested components...

Anyone got any advice or ideas?

Thanks,

FSB

SiriusB · 22 May 2006 at 17:15

Hmm...

Well the best bet would be to set up your rig, then in turn take out a piece of hardware and replace it with something you KNOW works.

If you system boots up after replacing a piece of hardware, you have found your culprit.

SiriusB

quadboi · 22 May 2006 at 17:21

Yes, also are you sure there is a pci-e connector to the gfx card

Make sure its plugged in hehe

theFSB · 22 May 2006 at 17:22

Yea except I dont have any other fitting hardware.

Just ordered an Abit AW8 to test it!

lee87 · 22 May 2006 at 17:24

Have you used stand offs to make sure the mobo isn't shorting.
Try turning it on with the mobo outside the case.

theFSB · 22 May 2006 at 17:26

This may be a clue -

When you power on the Radeon X1900XT-X as you may know, the Fan spins full speed for around 10 seconds before slowing down.....

Well, when I switch this one on, it doesnt slow down and continues to spin full speed until you cut the power. Have tried this with an X800 to verify the X1900 isnt faulty and it does the same thing.

Anyone have any ideas?

Mul · 22 May 2006 at 17:29

Surely if the motherboard was being shorted, it wouldn't power up at all?

Do you have the ATX12V Cable, 24pin ATX Cable and 4 Pin molex plugged into the P5WD2 Premium? Stupid question but it's worth a try.

Mul

theFSB · 22 May 2006 at 17:31

Mul said:
Surely if the motherboard was being shorted, it wouldn't power up at all?

Do you have the ATX12V Cable, 24pin ATX Cable and 4 Pin molex plugged into the P5WD2 Premium? Stupid question but it's worth a try.

Mul

Yes mate, its all where it should be

Mul · 22 May 2006 at 17:38

ugh gutted. Thought I'd check as I'd initially forgot to plug in a molex into my DFI board.

Tried each stick of RAM independantly?

Mul

theFSB · 22 May 2006 at 17:39

Mul said:
ugh gutted. Thought I'd check as I'd initially forgot to plug in a molex into my DFI board.

Tried each stick of RAM independantly?

Mul

Thats the 1 thing i havent tried......

You think its that? :eek:

Mul · 22 May 2006 at 17:41

could be one faulty stick of RAM. Also Used to do the trick getting some motherboards to boot initially.

Mul

Stellios · 22 May 2006 at 17:48

If it was RAM you would get a beep code telling you its missing.

theFSB · 22 May 2006 at 17:49

Stellios said:
If it was RAM you would get a beep code telling you its missing.

Well then, its CPU or mobo fellas, most likely mobo tbh

2StepSteve · 22 May 2006 at 17:52

theFSB said:
This may be a clue -

When you power on the Radeon X1900XT-X as you may know, the Fan spins full speed for around 10 seconds before slowing down.....

Well, when I switch this one on, it doesnt slow down and continues to spin full speed until you cut the power. Have tried this with an X800 to verify the X1900 isnt faulty and it does the same thing.

Anyone have any ideas?

This sounds like a RAM problem. My X1800XT did this aswell on power up, the fan would spin at 100% and not slow down, no post bleeps and no display.

The prob with mine was the RAM wasnt pushed in properly. Take another look at the RAM unless u can totally dismiss it.

theFSB · 22 May 2006 at 17:55

Right, Ill put it back together and try each stick individually

Mul · 22 May 2006 at 17:58

Good man, It's worth a try. Nothing to lose

theFSB · 22 May 2006 at 17:59

Can DDR1 go in DDR2 slots?

Dnt think it can, just never dealt with DDr2

Mul · 22 May 2006 at 18:00

nope unfortunately not. DDR = 184pins. DDR2 = 240 pins.

theFSB · 22 May 2006 at 18:00

Ah yeah, thought so

theFSB · 22 May 2006 at 19:02

Just tried PSU, Mobo, GFX, CPU and RAM on thier own

roatated the RAM sticks and tried both on thier own....

same thing still happens....

Now I doubt its the RAM so getting new mobo tomorrow to try....