white line across top of screen and freezes up

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Piper73

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Jan 29, 2015
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Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Home Premium, Service Pack 1, 64 bit
Processor: AMD Sempron(tm) M120, AMD64 Family 16 Model 6 Stepping 2
Processor Count: 1
RAM: 2812 Mb
Graphics Card: AMD M880G with ATI Mobility Radeon HD 4200, 336 Mb
Hard Drives: C: Total - 223921 MB, Free - 134520 MB; D: Total - 14248 MB, Free - 2350 MB; E: Total - 99 MB, Free - 95 MB;
Motherboard: Hewlett-Packard, 363F
Antivirus: Computer Security, Updated and Enabled

Hi i don't know if this is the right place to post this but i need some advice about my computer. Whenever i use my computer after it hasn't been used for a while when i open it it gets a white line across the top of the screen. Then my screen freezes up and my screen goes funny. The only way i can get it to work again is to hook it up to an external monitor. When the screen finally clears up and i unplug the monitor it starts working good again. Do you have any ideas about why my computer would be doing this? Any help would be appreciated.
 

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DaveBurnett

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Nov 11, 2002
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12,970
Check the cables to the screen, but that looks like a bad graphics chip to me.
Also try reseating the graphics card.
 
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Aug 8, 2014
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I don't think a card can be reseated because HD 4200 is AMD onboard graphics that would be on that AMD 880 motherboard. However I would certainly try various cables, and then try an add-in GPU solution to test with. Something that isn't powerful just simple for testing. It could be a motherboard going bad or the HD 4200 on the motherboard going bad but for onboard solutions that's pretty rare. Might be a power supply going bad. I would advise you email HP about it (or call them) and tell them exactly what is going on see what they say. I am thinking...>


1. Power supply


2. Cable


3. Motherboard


In that order.
 

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Allan
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May 24, 2003
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I think it's a laptop since OP says an external Monitor works ok.

What model laptop is it ?
 
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Aug 8, 2014
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Great catch. laptops with the 880g chipset were pretty rare and indeed it does say mobility 4200. I use to have a 785G motherboard with HD 4200 many years ago really liked that board.
 
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