Emachine powers on but screen remains black, no beeps

November 5, 2013 at 16:52:43
Specs: Windows 7, 3GB
Emachine E442-V634 doesn't boot up anymore. Power button lights up, dvd player opens and close fine, screen remains black, no beeps of any kind, cpu fan on. It was working fine and a few night ago shut the computer down for the night. Turned it on the next morning and this situation happened. After a few attempts it started and worked fine, made a backup of anything important , just in case. That evening went to turn on the computer and same thing happened and was never able to restart it again. Screen remains black and won't even boot to the bios. Harddrive seems to be "clicking" when I try to boot up. Tried draining the power by holding the power button down without any power going to the computer. Removed ram and reboot, no beeps. Tried one ram modul at a time, no results. Boot with hard drive removed, no beeps or bios. Took the computer apart , no dust on fan. Computer is only two years old. Tried hooking it up to another monitor, still nothing. I am at a lost to what the problem might be. Any ideas would be greatly appreciated. I don t think it is the hard drive since the bios screen won t even come up. Western Digital 320 GB, AMD V140, ATI Mobility Radeon HD 4250. How do you find a solution to this problem.


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#1
November 5, 2013 at 18:44:01
I replaced a clicking hard drive the other day, it means they are failing usually. Good thing you backed up stuff. Is the video card on board or a separate card. If so, power off, remove and reinsert the video card see what that does or if you have an onboard vga as well, then try removing the card and using the onboard. Even if the hard drive were failing, you should get a bios screen with it removed, which is why I am wondering about the video itself or possibly the board if all else checks out. What does it do with everything unplugged, no hard drives, floppy drives or Cd roms etc plugged in?

To err is human but to really screw things up, you need a computer!

message edited by HopperRox


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#2
November 6, 2013 at 01:35:18
It is a laptop so it is probably an onboard video card........no floppy drive. I didn't try booting without the cd/dvd rom plugged in. I will see if I can borrow a hard drive to see if it makes a difference. Without a bios screen there isn't much you can do. Would taking the battery out reset the bios help in some ways?

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#3
November 6, 2013 at 01:42:24
I should also add that when I turn on the power the hard drive light doesn't come on. Tried booting with a boot up cd but nothing is happening.

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#4
November 6, 2013 at 06:01:47
Ok, does the laptop have an external monitor plug in? Maybe the screen is not functioning, as I say even without the hard drive even being in it, you should get a bios screen. If you don't have a picture on an external monitor, it may be a board issue. The cmos battery in laptops can be a pain to get at and change.

To err is human but to really screw things up, you need a computer!


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#5
November 6, 2013 at 11:01:40
I know it is difficult to prove but if it "sounds" as if it's booting up then most likely it is either the screen or the connections to it. A plug at either and could have worked loose or damage around where the cable hinges.

If it sounds dead then PSU failure is quite possible.

Clicking can be the HD about to fail or a fan blade touching something.

Probably obvious but it is almost certainly a hardware fault of some sort.

Always pop back and let us know the outcome - thanks


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#6
November 6, 2013 at 15:37:20
I've tried hooking up the laptop to another working monitor and still nothing. I came to the conclusion that it is either a motherboard issue or the cpu. The cmos battery is quite easily accessible. Would a bad cmos battery be the cause of my troubles?

message edited by pinus


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#7
November 6, 2013 at 16:40:13
Cheap to try but even without the CMOS battery you should see "something" on the screen.

Always pop back and let us know the outcome - thanks


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