HP laptop Black screen

June 6, 2017 at 02:38:35
Specs: Windows 10, 4GB
HP Pavilion G6, appears to boot up, you hear fan and feel HD, LED's for power and power charger plus Num lock activate. Then nothing!

Laptop has black screen so possible cause considered:

Dead CMOS battery - would this stop laptop booting?

Dead HD - keep looking for LED signal - nothing seen but would this cause black screen?

Dead graphics - external monitor connected - nothing found?

RAM error - reseated and place in second slot no change.

Purchasing USB cable to allow testing of HD on another PC but advice direction appreciated on possible actions to be taken to get laptop working?


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#1
June 6, 2017 at 04:10:15
"Purchasing USB cable to allow testing of HD on another PC but advice direction appreciated on possible actions to be taken to get laptop working?"
Maybe last on your possibles.

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message edited by Johnw


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#2
June 6, 2017 at 10:08:53
Thanks for advice, but with black screen unable to setup Boot Menu or BIOS to make any changes? Would think HD is first port of call not USB?

Will BIOS automatically move onto the USB if HD fails to load?

message edited by Skeg289


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#3
June 6, 2017 at 15:16:58
Do you ever see anything at all on the screen? If not it is almost certainly a hardware fault, possibly the screen or its ribbon cable. Try an external monitor on it and let us know what happens.

Sometimes you get issues due to the cable at the laptop hinge. With the computer up and running, try slowly closing the lid (not right down) and watch the screen. If that causes anything to appear on the screen then it is either the cable or a connection at one end or the other.

Always pop back and let us know the outcome - thanks

message edited by Derek


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Related Solutions

#4
June 6, 2017 at 15:50:43
"Would think HD is first port of call not USB?"
When you boot into the bios, is the HD showing on that screen?

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#5
June 6, 2017 at 16:19:30
"Thanks for advice, but with black screen unable to setup Boot Menu or BIOS to make any changes? Would think HD is first port of call not USB? "
Not getting into BIOS would mean that it is not the hard drive since it can boot to BIOS with no hard drive plugged in.

You have to be a little bit crazy to keep you from going insane.


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#6
June 6, 2017 at 17:07:41
"Will BIOS automatically move onto the USB if HD fails to load?"
Did you try?

If it doesn't, leave the usb plugged in & see if you can get into the bios & change the boot order.


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#7
June 6, 2017 at 19:36:30
If you have important data (and not backed up) on your HDD it would be wise to get copy it to another PC. The USB cable would be a good start.

If external monitor is not displaying anything either changes are high you have a major hardware problem.

I assume this laptop is 5-6 years old? Have you ever changed the battery?
Start with taking out the battery and see if anything changes.
Perhaps removing/changing the CMOS battery could help too, but not an easy replacement.


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#8
June 7, 2017 at 02:40:44
Thanks all for advice.

Newly created USB and or Boot disk left in (separately) but no joy not even a flicker on the dead black laptop screen or external monitor..

Above tried with and without battery.

Connection of external monitor does not do anything.

Removal and reinsert of RAM (both slots) does nothing.

Opinion wanted as with no LED signal for HD think this might be true indication of issue hence purchase of USB cable to test HD on another PC - thoughts as if HD works what next? CMOS battery replacement but would dead battery cause laptop not to boot on screen? Plan to test RAM in another laptop to test fully functional - so that will be a pass or fail. If fail found problem if pass move on!

Again thoughts and direction please?


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