HP nx9010 has bad CPU, but acts the same dysfunctional way with good CPU!

Skipper05 · 02-20-2008, 09:45 PM

Hello everyone,

I am examining a motherboard from a Compaq/HP nx9010. It came with the wrong CPU (it needs a 2.8Ghz P4) but had a 1.8Ghz Celeron that gave the same problem when it was placed in another known working nx9010 motherboard. The problem was that laptop turns on, lights come on normal, fans come on normal, DVD drive turns on and off repeatedly and nothing else happens, no screen output or POST or beeping. I put good memory in it. Okay, right, so I decide to put this good 2.66Ghz P4, close to the appropriate CPU for this model, and it does the same thing! This is a very weird problem. Does anyone have any idea what is wrong with this motherboard? You'd think that just the CPU is the bad apple here. Maybe bad BIOS?

Thank you!

loudnproud59 · 02-21-2008, 08:33 PM

It is possible that it is a mainboard failure if the cpu was bad what caused it to fail,there could be a damaged component on the board maybe a voltage regulator or one of the chipsets has gone bad,as for a bad bios it is possible, do you know the history of the board let me know and i will try and help as much as i can,this is the link to the service manual.

http://h20000.www2.hp.com/bizsupport...Fc01122313.pdf

Skipper05 · 02-24-2008, 09:40 PM

I won this item on ebay, hoping it would be an easy fix. It sounded like the CPU was bad, and it was. But there is more to this. I put a good CPU on this and it hasn't changed. I did put that CPU back on a good motherboard and it did work. The bad CPU gave the exact same results on a good motherboard. I mean, have you seen anything like this before? It doesn't make sense. I didn't notice a burnt chip. Thank you.

loudnproud59 · 02-25-2008, 08:32 PM

The mainboard is most likely dead it is possible that the cpu that was in it over heated and caused somthing on the board to fail,it could be something in the power circiut or one of the chipsets has been damaged,your best bet would be to get another board since repairing the board could be quite exspensive,i have come across a few boards with dead cpu's and the mainboards did not work when tested with good cpu's.

02-20-2008, 09:45 PM	#1 (permalink)
Skipper05 Registered User Join Date: Nov 2007 Location: USA Posts: 14 OS: Win XP	HP nx9010 has bad CPU, but acts the same dysfunctional way with good CPU! Hello everyone, I am examining a motherboard from a Compaq/HP nx9010. It came with the wrong CPU (it needs a 2.8Ghz P4) but had a 1.8Ghz Celeron that gave the same problem when it was placed in another known working nx9010 motherboard. The problem was that laptop turns on, lights come on normal, fans come on normal, DVD drive turns on and off repeatedly and nothing else happens, no screen output or POST or beeping. I put good memory in it. Okay, right, so I decide to put this good 2.66Ghz P4, close to the appropriate CPU for this model, and it does the same thing! This is a very weird problem. Does anyone have any idea what is wrong with this motherboard? You'd think that just the CPU is the bad apple here. Maybe bad BIOS? Thank you! Last edited by Skipper05; 02-20-2008 at 09:48 PM.

02-21-2008, 08:33 PM	#2 (permalink)
loudnproud59 Registered User Join Date: Nov 2005 Posts: 139 OS: win xp pro	Re: HP nx9010 has bad CPU, but acts the same dysfunctional way with good CPU! It is possible that it is a mainboard failure if the cpu was bad what caused it to fail,there could be a damaged component on the board maybe a voltage regulator or one of the chipsets has gone bad,as for a bad bios it is possible, do you know the history of the board let me know and i will try and help as much as i can,this is the link to the service manual. http://h20000.www2.hp.com/bizsupport...Fc01122313.pdf

02-24-2008, 09:40 PM	#3 (permalink)
Skipper05 Registered User Join Date: Nov 2007 Location: USA Posts: 14 OS: Win XP	Re: HP nx9010 has bad CPU, but acts the same dysfunctional way with good CPU! I won this item on ebay, hoping it would be an easy fix. It sounded like the CPU was bad, and it was. But there is more to this. I put a good CPU on this and it hasn't changed. I did put that CPU back on a good motherboard and it did work. The bad CPU gave the exact same results on a good motherboard. I mean, have you seen anything like this before? It doesn't make sense. I didn't notice a burnt chip. Thank you.

02-25-2008, 08:32 PM	#4 (permalink)
loudnproud59 Registered User Join Date: Nov 2005 Posts: 139 OS: win xp pro	Re: HP nx9010 has bad CPU, but acts the same dysfunctional way with good CPU! The mainboard is most likely dead it is possible that the cpu that was in it over heated and caused somthing on the board to fail,it could be something in the power circiut or one of the chipsets has been damaged,your best bet would be to get another board since repairing the board could be quite exspensive,i have come across a few boards with dead cpu's and the mainboards did not work when tested with good cpu's.