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Hyphen ( _ ) Keeps Blinking In The Top Left Corner Of Screen


I just formatted pc with a xp pro dis w/ sp1 then i installed teh cd with sp2 and it ddint work my comp keeps restart and now whenever i boot it up the screen that shows ur spec with the f8 or f12 loads, it takes me to a blank screen, black, and in the top left corner there is a hyphen( _ ) that keeps blinking, this keeps happenin when i turn it off den back on or restarting, i just built this comp all together yesterday and keep gettin these errors my first build was fine what is the problem?

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Pc Flashing Cursor At Top Left Hand Corner Of Screen

I have a dell dimension 3000 (circa early 2006) running windows xp home. Yesterday when i booted it up i got the dell bios screen and then nothing but a flashing cursor at the top left hand corner of the screen. After cursing profusely, i started tinkering with connectors and such to no avail. After a couple of hours of that not working i pulled all of the peripherals off of the back with the exception of video and booted and didn't it boot up to the windows login screen! I tried to plug my mouse back in but it appears that all but one of the usb ports on the back don't work and that didn't seem to respond. Has anyone ever seen something like this before?

When this all started happening i thought the hard drive might have died but the fact that it will boot up under certain conditions leads me to believe the hdd is still living. At this point i'm thinking that i might be looking at a bad motherboard or power supply. Are those reasonable assumptions? I looked up at the specs online and the darn thing only has a 250w psu in it.


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