Hello - first post here. I'm dealing with a computer here that won't post (it's my sister's computer that i'm trying to fix to save her $ from buying a new one). It happened overnight. It was working the previous day, and then the next day it wouldn't post. She was able to remove the hard drive and save the data, so there is no hard drive in the computer right now. Here's what i get when i turn it on:
I get a blank screen. nothing written on the screen. The fan starts up right away. No beeps. The CD Rom opens and closes. In fact, when i open the CD rom drive, it closes automatically within 1-2 seconds. If i put a cd in it (quickly) before it closes, it makes the proper spinning sounds.
The computer is the HP 110-090. It has one 4GB memory module. From what i've read it is basically a laptop motherboard in a tower case. There's no external power supply or video card.
What I've tried:
unplugging the power to the CD rom prior to startup. No difference.
took out the 1 memory module. on startup, the computer beeps the typical beeps for missing memory.
tried both the VGA and DVI connectors to the monitor, and tried two different monitors. no difference.
made sure all ribbons and cables are attached and secure.
unplugged the computer and took out the CMOS battery for an extended period of time. when put back in, no difference.
CMOS battery measures 3.032 volts.
What it appears would be the next step, based on reading multiple posts in this forum, is to try a different memory module. unfortunately i don't have another one to try but would be willing to order one if you guys concur that this makes the most sense. However, what is pretty interesting to me is one other step that I did.
I took out the CMOS battery completely and then started up the computer and I got the exact same type of startup (blank screen, power to fans and cd rom) as i do with the CMOS battery hooked up. I'm no expert in the order of checks when a computer turns on, but if the CMOS battery isn't the problem, does this makes sense? Wouldn't there be an early screen saying CMOS checksum error or something like that since there isn't even a CMOS battery during this test? or would a memory issue occur prior to the computer noticing that there is no CMOS battery hooked up?
I hope I've given enough detail here to allow someone to graciously assist me in this problem. If not, please ask away. Thanks in advance.
I get a blank screen. nothing written on the screen. The fan starts up right away. No beeps. The CD Rom opens and closes. In fact, when i open the CD rom drive, it closes automatically within 1-2 seconds. If i put a cd in it (quickly) before it closes, it makes the proper spinning sounds.
The computer is the HP 110-090. It has one 4GB memory module. From what i've read it is basically a laptop motherboard in a tower case. There's no external power supply or video card.
What I've tried:
unplugging the power to the CD rom prior to startup. No difference.
took out the 1 memory module. on startup, the computer beeps the typical beeps for missing memory.
tried both the VGA and DVI connectors to the monitor, and tried two different monitors. no difference.
made sure all ribbons and cables are attached and secure.
unplugged the computer and took out the CMOS battery for an extended period of time. when put back in, no difference.
CMOS battery measures 3.032 volts.
What it appears would be the next step, based on reading multiple posts in this forum, is to try a different memory module. unfortunately i don't have another one to try but would be willing to order one if you guys concur that this makes the most sense. However, what is pretty interesting to me is one other step that I did.
I took out the CMOS battery completely and then started up the computer and I got the exact same type of startup (blank screen, power to fans and cd rom) as i do with the CMOS battery hooked up. I'm no expert in the order of checks when a computer turns on, but if the CMOS battery isn't the problem, does this makes sense? Wouldn't there be an early screen saying CMOS checksum error or something like that since there isn't even a CMOS battery during this test? or would a memory issue occur prior to the computer noticing that there is no CMOS battery hooked up?
I hope I've given enough detail here to allow someone to graciously assist me in this problem. If not, please ask away. Thanks in advance.
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