New computer, motherboard problems....

[parthvader]

I'm building a new computer with these parts:

Intel D875PBZ motherboard (aka 875P)
Intel P4 3.06e (prescott) processor
Corsair DDR400 512MB x 2 memory
ATI Radeon 9800 Pro 128MB video
SB Audigy 2 ZS sound card
X-Turbine Black Case w/ ICute 400 watt PSU

My problem:
1 - The computer starts without the front panel connectors plugged in. If I attach the 2 power connectors to the motherboard (4-pin and 12-pin I think it is) and turn the PSU switch on (in the back of the PSU) then the system powers on. I don't think the system should be turning on without me pressing the power switch in front of the case. --- So that's one problem.
2 - Ignoring the first problem, after I connect everything onto the motherboard and try to boot up for the first time I get a "No Signal on Analog 1" type error message on my flat LCD screen. I was trying to use the DVI cable but then decided to use the analog cable just in case. Still, ended up having the same "no signal" error message.

Solutions I've tried:
1 - Isolated the motherboard so only the CPU, heatsink/fan, 2 power connectors, and the front panel POWER SWITCH (even though I don't need it in my case) are connected to the motherboard. Then tried turning it on, and it still gave me a "No signal" error message.
2 - Pull out everything except CPU and heatsink/fan, pull out motherboard battery (the circle one) for 10 minutes, and then try booting it up and try to hear some beeps or something -- still no good.

My question:
Is my motherboard messed up?
Should I try another PSU (I'm going to Fry's to buy a 550watt PSU right now)?
Is there something I overlooked?

Please try to help me as soon as possible. As all computer builders, I'm really anxious to get the system up and running. If you happen to have the same problem, then please let me know what you're trying to resolve it. Also, sorry for the long post.

- Parth

[jmichna]

Couple things to check:
Double check to make certain the (case switch) wires to the motherboard connectors are installed properly (power vs reset not switched, or wire postitions reversed of power and/or reset)... also, maybe faulty witch on case?

[parthvader]

I triple checked that already. However, I think the PSU is bad because the motherboard would power up without the actual power switch in it. As soon as I give juice to the PSU, it would power up the motherboard. I bought a new PSU which will hopefully fix that problem.'

Thanks for replying though.

[John Prophet]

sounds like maybe the motherboard is touching the case somehow...I had one do the exact same thing....take the board out of the case and boot it that way and see if that fixes it.

[parthvader]

That was one of the things I already tried and it failed. What troubles me is that the PSU makes the motherboard turn on, not the power switch. Anyway, thanks for the help and for replying.

[HeadBand]

check your cmos jumper...sounds like an odd soultion but i had that happen to me once where it would always be turned on unless i was holding down the power button or unplugged

also when you put in the minimal stuff you need ram and vid card in

[parthvader]

I did try the CMOS jumper. There are three settings for it: normal, config, and recovery. I had tried to update the BIOS by doing a BIOS recovery (got the file off Intel's website, and then proceded to do the recovery) but it didn't work. During that procedure, and a few others I tired just to get it to work, I had the video card and the memory stick in.

I just bought a new PSU that is 550watts. I keep getting the same problem. The motherboard turns on as soon as I turn on the PSU. I'm thinking it's either the BIOS that is messed up or the motherboard itself. Either way, I need to get a new motherboard -- I think.

I'm still searching for solutions -- if you happen to know one then as always please let me know. Also, thanks HeadBand for the suggestion.

[Ace McGirk]

disconnect the power switch, then turn on the psu and see what happens, might just be a funky switch.


Also make sure the switch is not one from an "AT" style case.those are on when you push, off when you push.as opposed to an "atx"type switch that is only momentarilly on when you push it and off when left alone.

[parthvader]

I had tried it and it did not work. Everything is for ATX too, but I completely see what you're saying. I think it's something inside my motherboard that is defective. Who would have thought that a motherboard would come as defective as mine? Anyway, I'm going to get another motherboard today and see what happens. I'll let you guys know what's up.

Thanks again.

[mgugdec]

d875pbz power on switch problem....

I have the same problem you described with your d875pbz power on switch problem, where it just powers on with the p.s. switch & not the front panel switch.
Did you ever happen to find a solution to your problem? Your assistance would be greatly appreciated, thank you.