Help needed: Laptop doesn't boot

segmus · 09-30-2007, 12:42 AM

Hi every body,
I had a problem with the adapter's jack, the laptop went OFF frequently when I touched on the adapte's plug. So I decided to disassemble the laptop (Compaq zv5000, P4, XP) in order to fix the broken jack. This is what I did. Then I put back all the parts in place, but it didn't boot up anymore. When I push power button, it seems to start up. The fans make noise, the power light comes ON, the HD light also goes ON but for a short time. suspecting a hardware issue, I tried to boot without memory, DC drive, and HD, but it didn't solve the problem. I thought about reseting the bios (removing the bios battery) but I have no idea where to find it.
Please help, thanks;

gdement · 09-30-2007, 04:20 AM

Hard to say, but the first time I did a repair on my Thinkpad I accidentally broke off the lid switch, which caused the screen to stay blank. Check if your lid switch is still intact, other than that I don't know what else to suggest. It seems unlikely that there would be anything wrong with the bios, but on the laptops I've seen the CMOS battery has been in a marginally accessible location under one of the back panels. It'll probably just look like a coin-cell battery with tape wrapped around it and 2 wires hanging off.

Unplugging unnecessary components is fine, but you won't be able to reach the POST screen without memory installed. The BIOS can't get that far without it.

Try to find a service manual on Compaq's web site if you can. Those are very helpful with laptops, but not always available or easy to find.

segmus · 09-30-2007, 12:19 PM

I'll disassemble it again, other than that, it seems to be ok. Hopefully I'll find out something.
thanks for your assistance

09-30-2007, 12:42 AM	#1 (permalink)
segmus Registered User Join Date: Sep 2007 Posts: 2 OS: xp sp2	Help needed: Laptop doesn't boot Hi every body, I had a problem with the adapter's jack, the laptop went OFF frequently when I touched on the adapte's plug. So I decided to disassemble the laptop (Compaq zv5000, P4, XP) in order to fix the broken jack. This is what I did. Then I put back all the parts in place, but it didn't boot up anymore. When I push power button, it seems to start up. The fans make noise, the power light comes ON, the HD light also goes ON but for a short time. suspecting a hardware issue, I tried to boot without memory, DC drive, and HD, but it didn't solve the problem. I thought about reseting the bios (removing the bios battery) but I have no idea where to find it. Please help, thanks;

09-30-2007, 04:20 AM	#2 (permalink)
gdement Registered User Join Date: Sep 2007 Posts: 2 OS: Windows 2000 SP4	Re: Help needed: Laptop doesn't boot Hard to say, but the first time I did a repair on my Thinkpad I accidentally broke off the lid switch, which caused the screen to stay blank. Check if your lid switch is still intact, other than that I don't know what else to suggest. It seems unlikely that there would be anything wrong with the bios, but on the laptops I've seen the CMOS battery has been in a marginally accessible location under one of the back panels. It'll probably just look like a coin-cell battery with tape wrapped around it and 2 wires hanging off. Unplugging unnecessary components is fine, but you won't be able to reach the POST screen without memory installed. The BIOS can't get that far without it. Try to find a service manual on Compaq's web site if you can. Those are very helpful with laptops, but not always available or easy to find.

09-30-2007, 12:19 PM	#3 (permalink)
segmus Registered User Join Date: Sep 2007 Posts: 2 OS: xp sp2	Re: Help needed: Laptop doesn't boot I'll disassemble it again, other than that, it seems to be ok. Hopefully I'll find out something. thanks for your assistance