Will not Power UP…
Hi Guys:
Today I went into the studio to Boot up the computers and and update the Operating systems and virus definations, and all…
The P-111 is updated and current and all…
But the P-=4 will not power up at all…
I replaced the power supply, thinking that IT is something minor… But, after replacing the power supply nothing has changed…
There is a “Green” LED on the board… indicating that “Power” ? 
Is present… But IT doesn’t indicate that IT will Power UP…
What could the issue be that is keeping this computer from "Posting UP? and what could I do to continue checking what the problem is… That’s keeping this machine from Posting?
The last time I was in the studio, everything was fine… with this machine…
Bill…
Hmmmm. Possibly a dead motherboard Bill.
Any beeps?
Hi Mark:
You may very well be right…
I used that computer the last time and all worked just fine. But when I when in to the studio this morning I powered every thing up the way I would normally… but the computer (The P-4) just didn’t power up. The P-111 powered up when I pressed the power button on the front panel… I think the power button is an intermittentON when the button is depressed… Mabey the power button is faulty… I’ll check that with a meter… Those ASUS Boards have an LED that indicates there is power from the power supply and that is lit up when the power cord is connected to the mains and the power switch on the power supply is in the ON position…
Normally… when I apply the mains power to the power strip the computers/power supplies will give an audible lurch… from that I’ll know I can depress the front panel switches and the computers will begin to post-up… Boot…
Is there? or could there be some issue that I hadn’t antisipated? Could I pull all the IDE cards out except for the graphics card and see if IT posts? or./. and something like that??
Just checking for needles in the haystack…
grasping at straws…
That… being the case… Would I have anXP registration issue if I changed the Mainboard?
What other issues could I be faced with if I changed out the mainboard?
Bill…
Bill,
It’s unlikely to be the switch - on an ATX PSU they are a mometary contact anyway.
As you’ve changed the PSU, that tends to rule that out. (I’m sure you’re aware that a PSU can still be faulty even if some of the LEDs are working etc since a PC PSU outputs several different voltage lines and just one going down would cause issues).
Pull all the cards - including graphics card. Power up. IF you get some beeps at this stage then it’s possibly a faulty card. (Remember the BIOS beeps have a meaning, so if the board powers up without graphics the BIOS should say “I’ve got no display adaptor” in its little beep-beep talk, but at least you know it’s alive).
You should be able to google up the beeps for you board.
Perhaps pull the RAM too. If the board is alive you should get the “I’ve got no RAM” beeps.
Other than that, and here’s the rub, it could be either the CPU or the mobo. It’s not really possible to tell without a swapping them out… which you probably can’t do.
I’ve seen more mobos than CPUs fail so that would be my hunch…
Mark
Hi Mark:
Thanks for your reply to this issue I have…
It’s sinking in… This P-4 may be history… I’m gonna play with it a bit, but I think I’m wasting my time…
IT’s hardly worth while looking for another used board to replace IT… Is It?
Bill…
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It might be worth checking out Ebay and taking a risk that your CPU is ok. You might pick up a suitable board for a few dollars that would get you going again.
Otherwise you may have to look at a new mobo/CPU combo, or maybe just a new mobo to put your existing CPU into.
Bummer!
Mark
woxnerw - I would definitely follow Mark A’s advice on pulling all of the cards, trying to boot, and then if there is still a problem pull memory and try to reboot again. Don’t give up on the motherboard and CPU until you have tried that. The cards (video especially) or memory are just as likely (maybe more likely) to be the problem.
Hey Bill,
My main DAW PC did the exact same thing. My ATI Radeon 9200SE went ten toes up. Pull the cards one by one as the guys suggested already. Betcha your vid card nuked itself…
D
check also your external connections ( keyboard plugged on mouse connector ? ) and the lead connected to the front panel power switch
try to reinstall master bootrecord (fdisk /mbr)
Hi Guys:
This P-4 I have in the studio has a Matrox G-550 graphics card… It’s also is a dual boot machine… on to seperate boot drives At post time I enter the BIOS to select which drive to Boot from… IT always boots from the last drive selected…
[EDIT]
When I push the “Front Panel” power switch. Nothing Happens…
This issue developed right outta the Blue… I’ll be working on this project as the week goes on…
I have a feeling the Mainboard is history… But I don’t know why IT happened.
Bill…
Hi Again:
I got the oppertunity to look at this P-4 that went DEAD…
I rempved all the IDE hardware and I pulled all the power plugs to the drives and all…
The only power supply plugs that were connected, were the ones that went to the Mainboard… I plugged the mains into the power supply and NO-GO… The "Green LED on the mainboard was lit up… but the power supply fans didn’t come on or was there any “Beeps” from the Mainframe. I’m not sure if there is anything else I can do to ensure that the issue is put to rest…
On another fron, there is a local supply house that has an ASUS P4P800SE 800mhz FSB Sound GBit LAN…
It’s considered an obsolete board… But most of the hardware I have will work with IT… I think… Here is a link to IT…
http://www.greenlyph.com/product…_id=527
IT’s not cheap… But I’m thinking that IT’s replace the board that I have…
Does this sound like I’d be chaseing “Good Money After Bad Money”… ??
Or… should I just lick my wounds and Back away from this failure?
Bill…
I may be presenting the minority view here and I am a cheap guy, (my main recording machine is a PIII), but if somewhere around 100 bucks puts you back in business it seems worth it to me.
People can talk about how cheap the latest barebones MOB might be, but after you add in a CPU, new RAM etc…
Sincererly,
Mr. Cheapo
Another board
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Can’t argue with that.
Saying that, some of the entry level Dell PCs we get here in the UK are pretty reasonable - not sure what the US prices are like but probably better. Whilst this wouldn’t be a “hand picked for audio” PC, it’s bound to be faster than reworking an old PC…
But I’d just replace the motherboard…
Mark
Hi Doug and Mark:
I’m considering this option, as well as some other ones.
This could very well move me into new Audio Hardware.
The reason for this machine and the way it was setup was because of the Lexicon CORE 32 hardware… However, no XP Drivers were ever manufactuered for IT.
BUT, I think this BOARD is able to accept quite a bit of HI-Speed RAM and a respectable Processor in todays standards… Albeit, IT’s a 478… as opposed to some other standard… I think the only setup IT would be missing is a Dual Core processor and whatever featuers go along with that idea…
If I don’t move on this Board I’ll go looking for IT one day, and IT’ll be gone…
The Quandry is, How fast a processor and What quality and amount of RAM to add to IT… I have everything else needed to build IT…
Then what audio card and how many tracks the card should contain… 
If you guys have some spare time, put together a “List” for me… That would be the place I’d shop for some RAM and a Processor… and whatever, else would be needed… I don’t know if they are into any audio hardware, at this place… I wouldn’t mind putting some Kingston RAM into the setup if that’s the direction it’ll go…
Bill…