Inspiron 8200, replaced screen, CPU running at 100%

Question

Hi, ran into this problem. I replaced my Hitachi SXGA+ LCD for my I8200. Same screen, should work OK right? Well, I've run into this problem-Now, when I boot up I don't get the XP logo, i just get a thick white line on the bottom of the screen, then it boots to the XP welcome screen, that's the first weird thing. Second, most of the time when it gets to the desktop, the CPU starts running at 100% (system and svchost.exe processes being the biggest hogs), when I reboot, it seems to run OK. Here's a twist though-when i replaced the inverter on the new screen with my old one it works OK (still no XP startup screen and it starts fading etc, which is part of the reason i replaced the screen), and when i replace it with the inverter that came with the new screen I start getting the CPU 100% problem. Any ideas why this may be happening or what to do about it? Is this a power problem? thanks kindly for any help, advice.

ejn63 · Answer

Is Windows fully up to date on critical patches?

Do you have current, real-time antivirus and firewall proteection?

Have you scanned for and removed all spyware?

Have you run the Dell diagnostics on the system, particularly an extended test on the hard drive and RAM?

danzak · Answer

currently doing all that, i did let my anti virus def's lapse for a bit so i'm doing all those checks now. How do I run the Dell diagnostics?

ejn63 · Answer

Boot, press F12 if they're still on disc, and run from there. Otherwise, boot from the diagnostics and drivers CD that came with the system.

Once you've updated your antivirus,, boot and scan from Safe Mode.

danzak · Answer

First off-thank you kindly for your help. I've completed all updates, cleans and Dell diag's and system runs smoothly now. However, when I boot up neither the Dell setup screen or the Windows XP startup screen don't show on my LCD, it's still black and white blotches with some color lines running thru. When XP load gets to the welcome screen it's fine. When I plug in an external monitor-the Dell screen and the XP startup both show up on the monitor but not the LCD?? Any suggestions as why? or how to fix? Is there anything like LCD firmware or something? Thanks again for your help.

ejn63 · Answer

Reseat, replace if necessary, the flex cable between the video card and display. If the issue persists, the LCD is faulty.

danzak · Answer

tried, and still no go. i'm thinking that maybe the screen may not be compatible with my I8200. The screen I installed is the Hitachi SXGA+ TX38D99VC1CAA which i see usually goes with the Lattitude 6? series or the I8100. The original screen that I pulled out was a Hitachi TX38D97VC1CAA.
Thanks again for your help

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