Boot problem with Asus P4P800, P42.4c system. Help!

[Shuelessjo]

Problem!

I upgraded my system today. When I tried to boot it everything comes on fine for a second, then everything immediately shuts off. So I can't boot the motherboard. The MB power light remains on, but that is the only normal thing happening.

Here is what I have:

P4P800 (retail)
P4 2.4c
512 MB PC2100 Nanya
Gainward Gf2 Ti200
IBM HDD
Maxtor HDD
Pioneer DVDR burner
Pioneer DVD player
Adaptec SCSI2 card w/ Plextor 12x writer
400 watt ps

That is my complete list of what is on the system.

Any suggestions on what is wrong?

Any help would be appreciated!

 

[mechBgon]

Here are some first guesses:

• Are you using the Cheetah avatar? It works best with AMD-based systems. Ok, just kidding
• Do you have the 4-pin secondary power connector plugged into the motherboard? If not, plug it in.
• Are you certain that your video card is fully bottomed-out in the AGP slot, and your RAM is fully seated in the DIMM slots?
• Why are you using PC2100 when you need dual-channel PC3200 for that setup to work well?
• What PCI slot is the SCSI card in? (IRQ issues)
• What brand of power supply is this? (Quality matters)

That's a start.

 

[Shuelessjo]

Originally posted by: mechBgon
Here are some first guesses:

• Are you using the Cheetah avatar? It works best with AMD-based systems. Ok, just kidding
• Do you have the 4-pin secondary power connector plugged into the motherboard? If not, plug it in.
• Are you certain that your video card is fully bottomed-out in the AGP slot, and your RAM is fully seated in the DIMM slots?
• Why are you using PC2100 when you need dual-channel PC3200 for that setup to work well?
• What PCI slot is the SCSI card in? (IRQ issues)
• What brand of power supply is this? (Quality matters)

That's a start.

1. I had an AMD system and decided to get a P4.
2. The Video card and DIMMs are all the way down.
3. The PC3500 DIMMs are not arriving until Monday. I just thought I would get my system up and running until they get here.
4. I completly took out my SCSI card and it produced the same reslults.
5. A1 is the brand of the power supply.

 

[mechBgon]

The A1 power supplies are not very good. They even took down their crummy website. While you're waiting, I suggest getting a nice Antec TruePower 330 or higher, or an Enermax 350W (365-series) or higher, or Sparkle Power 350W or higher... no way I'd trust a nice system like yours to an A1

I tried to download the motherboard manual so I could see whether this might just be an issue with the PC2100 memory versus the P4C processor, but the file Asus has is corrupt, so I can't look at the manual. Anyway, I hope it all works out for you

 

[Shuelessjo]

Thanks for your help mechBgon.

I found out what the isse was. I didn't know there was a new 12v, 4-pin power connector that new power supplies and motherboards have. My older A1 power supply doesn't have that connection. I replaced it with the power supply that came with my new case and discovered that connector. Then I looked on the MB and somehow it fit in there. I now have my system booted to the BIOS. Everything is fine, so far.

 

[mechBgon]

Sweet! Have fun with your new rig!