Motherboard Replacement

Applying heat sink compound, what else?? I did clean the CMOS many days ago. This problem started when I force the cpu out of the socket like an idiot. So I am pretty sure it's the damaged socket or cpu and since I am getting a shutdown after less than 5 seconds I really suspect the cpu over the socket, but who know. I need another cpu to try out. I don't like the thoughts of it, but I am trying to find something cheap on ebay.... By the way, since I have an OEM HP system do I need an OEM Cpu or will a retail version work if the specs are the same?

 

remove all the cards from your computer leave the vidio card in and try to power on let us Know if the problem is still happing. could be a card went bad or your power supply could not be sending correct power to the mother board.
dont use the new mother board yet.

 

Your options for the old board - OEM vs Retail will make no difference - either is fine. At least one can't complain about a lack of choices.

............................................................Since Since
.............................................................PCB BIOS
Celeron 1.7 GHz (400 FSB, L2 cache:128KB) 1.07 1004
Celeron 1.8 GHz (400 FSB, L2 cache:128KB) 1.07 1004
Celeron 2.0 GHz (400 FSB, L2 cache:128KB) 1.07 1004
Celeron 2.1 GHz (400 FSB, L2 cache:128KB) 1.07 1004
Celeron 2.2 GHz (400 FSB, L2 cache:128KB) 1.07 1004
Celeron 2.3 GHz (400 FSB, L2 cache:128KB) 1.07 1004
Celeron 2.4 GHz (400 FSB, L2 cache:128KB) 1.07 1004
Celeron 2.5 GHz (400 FSB, L2 cache:128KB) 1.07 1004
Celeron 2.6 GHz (400 FSB, L2 cache:128KB) 1.07 1004
Celeron 2.7 GHz (400 FSB, L2 cache:128KB) 1.07 1004
Celeron 2.8 GHz (400 FSB, L2 cache:128KB) 1.07 1004
Celeron D 320 (2.4 GHz, 533 FSB) 1.07 1004
Celeron D 335 (2.8 GHz, 533 FSB) 1.07 1004
Celeron D 330 (2.66 GHz, 533 FSB) 1.07 1004
Celeron D 325 (2.53 GHz, 533 FSB) 1.07 1004
P4-1.4 GHz (Socket478, 400 FSB, L2 cache:256KB) 1.07 1004
P4-1.5 GHz (Socket478, 400 FSB, L2 cache:256KB) 1.07 1004
P4-1.6A GHz (Socket478, 400 FSB, L2 cache:512KB) 1.07 1004
P4-1.6 GHz (Socket478, 400 FSB, L2 cache:256KB) 1.07 1004
P4-1.7 GHz (Socket478, 400 FSB, L2 cache:256KB) 1.07 1004
P4-1.8A GHz (Socket478, 400 FSB, L2 cache:512KB) 1.07 1004
P4-1.8 GHz (Socket478, 400 FSB, L2 cache:256KB) 1.07 1004
P4-1.9 GHz (Socket478, 400 FSB, L2 cache:256KB) 1.07 1004
P4-2A GHz (Socket478, 400 FSB, L2 cache:512KB) 1.07 1004
P4-2 GHz (Socket478, 400 FSB, L2 cache:256KB) 1.07 1004
P4-2.20 GHz (400 FSB, L2 cache:512KB) 1.07 1004
P4-2.26 GHz (533 FSB, L2 cache:512KB) 1.07 1004
P4-2.40 GHz (400 FSB, L2 cache:512KB) 1.07 1004
P4-2.40B GHz (533 FSB, L2 cache:512KB) 1.07 1004
P4-2.40C GHz (800 FSB, L2 cache:512KB, HT) 1.07 1004
P4-2.40A GHz (533 FSB, L2 cache:1MB, 90nm) 1.07 1004
P4-2.50 GHz (400 FSB, L2 cache:512KB) 1.07 1004
P4-2.53 GHz (533 FSB, L2 cache:512KB) 1.07 1004
P4-2.60 GHz (400 FSB, L2 cache:512KB) 1.07 1004
P4-2.60C GHz (800 FSB, L2 cache:512KB, HT) 1.07 1004
P4-2.66 GHz (533 FSB, L2 cache:512KB) 1.07 1004
P4-2.80E GHz (800 FSB, L2 cache:1MB, HT, 90nm) 1.07 1004
P4-2.80A GHz (533 FSB, L2 cache:1MB, 90nm) 1.07 1004
P4-2.80C GHz (800 FSB, L2 cache:512KB, HT) 1.07 1004
P4-2.80 GHz (533 FSB, L2 cache:512KB) 1.07 1004
P4-3 GHz (800 FSB, L2 cache:512KB, HT) 1.07 1004
P4-3E GHz (800 FSB, L2 cache:1MB, HT, 90nm) 1.07 1004
P4-3.06 GHz (533 FSB, L2 cache:512KB, HT) 1.07 1004
P4-3.20 GHz Extreme Ed. (800 FSB, HT) 1.07 1004
P4-3.20 GHz (800 FSB, L2 cache:512KB, HT) 1.07 1004
P4-3.40 GHz (800 FSB, L2 cache:512KB, HT) 1.07 1004

 

Well 2U choice is questionable. My choice is good assuming that my OEM P4u-la mobo is the same has the P4u-800X. which follows:

P4-1.4 GHz (Socket478, 400 FSB, L2 cache:256KB) 1.07 1004
P4-1.5 GHz (Socket478, 400 FSB, L2 cache:256KB) 1.07 1004
P4-1.6 GHz (Socket478, 400 FSB, L2 cache:256KB) 1.07 1004
P4-1.7 GHz (Socket478, 400 FSB, L2 cache:256KB) 1.07 1004
P4-1.8 GHz (Socket478, 400 FSB, L2 cache:256KB) 1.07 1004
P4-1.9 GHz (Socket478, 400 FSB, L2 cache:256KB) 1.07 1004
P4-2 GHz (Socket478, 400 FSB, L2 cache:256KB) 1.07 1004

But I have been told my HP Support that the Maximum CPU that the P4u-La will support is up to 1.6GHz. So I am not sure who to believe.

 

Be safe - believe HP support. Only P4U board listed by Asus is P4U 800x and thats what I pasted in my post. Your P4U-La must be proprietary, however HP usually will not ID a mfg on proprietary boards. My mistake in assuming your P4U was a standard board - I'll try to compare them if I can get a schematic but in the meantime, take the conservative approach and follow what HP tech support has told you. No sense adding another "bad move" to your current dilemma. Sorry for the possible bad guidance on my part and good catch on yours. Will try to investigate further for you. And, you might want to compare your board to that listed on the Asus site. Note: requires 1004 referenced Bios and 1.07 PCB. You can also reference your PCB if you have good eyes.

 

I would not equate much (anything?) that is listed at the Asus site to the HP mobo. It more than likely has a proprietry HP BIOS (that's why it is limited to a 1.6Ghz CPU). HP upgrade strategy...make you buy another computer.

bmartin, do you cut your losses and concentrate on making a good system from your new motherboard?

I was going to upgrade/refurbish my sister's HP (a PII), opened it up, saw what was involved then closed it again. It is now a basic homework machine for my youngest daughter. The case looked nice, but I was not prepared to go through the effort of even salvaging that.

Once again, your decision (sounds like you are having fun and getting experience, so even if smoke starts appearing, you have enjoyed yourself )

Matt

 

My vote would also go to cutting your losses and concentrating on building a new machine with the new Mobo. And, jumping back a few posts, that would probably wisely include a new case too. Might sound like wasteful spending at first blush, however, a lot of those HP boxes used minimal 230W power supplies and, if thats the case, your intel board might enjoy a bit more juice. There is also a risk that your HP PSU is non-standard. Although not notorious like Dell on the non-standard ATX trick-wired mobo header, I know some of their PIII boards required non-standard proprietary PSU's.

If you are having fun - go for it - build a new system. You won't regret it and when its done, you'll be one happy camper with a hell of a sense of accomplishment.

 

Ok, it's a rainy day here in West Virginia today, so I pull the cards out of the PC and got the same result, shutdown, but with the processor out of the socket and the heat sink fan continues to run. Does this mean anything to any of you hardware folks. Processor in fan stops. Processor out fan runs.

 

Can't say that I've ever tried that before. I think we all (yourself included) have strong suspicions that your processor is shot but absent a known good processor to try on that board (which may now also be shot) there's not too much to be concluded - other than the fact that it isn't working.


edit: This also assumes that your cpu fan is plugged into the correct mobo fan header.

 

I know that's what makes this so difficult. I guess I could go ahead and find a replacement processor and try it in the motherboard. If it doesn't work I can buy me a case and put the processor in the new motherboard. I won't have XP, but I do have win 2000 that I can install. I have seem the 1.5GHz or the 1.6GHz processor for around $65. Cheaper on Ebay, but hard to get. If you guys know of seller let me know. I have burned my eyes out.

 

Only what I think about "fan running" bit.
Processor in...the BIOS cannot access it or it overheats and does auto-shutdown.
Processor out...BIOS is looking the processor...we seek him here...we seek him there (it just keeps searching).

Matt
mmmm..alright... what about getting a decent processor (+case+PSU) for the new mobo. Build that. Keep an eye on Ebay. When a 1.6 turns up, see about getting the HP going again.

 

Just wanted to follow-up and let everyone know that I found a used 1.6GHz CPU on E-Bay at a really good price. Installed it and my PC is humming again. The sweet smell of success.

 

Good for you - glad to hear it. Now, don't stop there - get whatever components you need to build something around that intel board and have some more fun!