Presario R3000 won't boot

My old Presario R3000 laptop will not boot. I can get into the bios and I have tried resetting everything to default, but it still won't boot. I have tried booting from the hdd and from an XP cd and both result in the same thing. I turn on the computer and the COMPAQ screen shows with options to get into bios and then it goes black with nothing on the screen. I have done a lot of googling and haven't found much. Anybody got any ideas?

Thanks.
 
It sounds as though that it does initially post.

But, the guide will help you anyway, so I quoted it.
There are many different things to try, (Reseat; Dust; disconnecting externals and internals; benchtesting...)
I hope it came in use, if not; wait for other replies.
 
Yes the computer is trying to complete the Power On Self Test. It really sounds like a failing hard drive or even a bad CD ROM
 
Yes the computer is trying to complete the Power On Self Test. It really sounds like a failing hard drive or even a bad CD ROM

But I have tried booting from both the hard drive and the cd rom drive. I doubt that both drives went bad at the same time.

It sounds as though that it does initially post.

But, the guide will help you anyway, so I quoted it.
There are many different things to try, (Reseat; Dust; disconnecting externals and internals; benchtesting...)
I hope it came in use, if not; wait for other replies.

I have opened it up and I will try cleaning it, bench testing, etc. tomorrow.
 
I think Tmagic650 was trying to say, try unplugging the Harddrive and test to see if it does not shutdown (things like that) that's in the guide ;) And actually helped support what I was saying
Anyway this will take only a few mins to test :)
 
I think Tmagic650 was trying to say, try unplugging the Harddrive and test to see if it does not shutdown (things like that) that's in the guide ;) And actually helped support what I was saying
Anyway this will take only a few mins to test :)

Ok, I will try all of this tomorrow. All of you, thanks for the input.
 
Well I started taking everything apart and I kept trying to boot it up and it still wouldn't work. Then I tried one last time just before I was about to give up and it worked. I turned it off and booted from an xp cd and formatted the hdd. I started to install a fresh copy of xp and just before the part where it asks you for the serial number the computer froze. I restarted the computer and restarted the installation and it froze again except now a little before the last place that it froze. So I tried once more, this time it didn't even get to the installation and now I am back to where I started where it won't get past the boot screen. Anyone know what could be wrong?

I just tried rebooting again and I got this error: "CMOS SYSTEM CHECKSUM BAD"
I only got this error once.
 
Please also try running Memtest on your Ram (it's in the guide)
I'd also recommend resetting the Bios to setup defaults
 
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