Re: replacing a motherboard in a dell Inspiron 1000...
I got a del inspiron 1000,some time displays appears,sometimes not,now when i turn it on,nothing appears on the screen.ram is ok,processor is ok too,now only motherboard left,could you help me out,how to test it and how to fix it.
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If all the answers above do not work, it is possible that your video chip is failing. Laptop video chips are embedded in the motherboard. Over time, too much heat becomes an issue and begins to warp the chip and it begins to lift up slightly from the motherboard creating issues with blank screens when powered up. I've had the same problem with several laptops brought to me for repairs and 90% of the time it was the video chip. For this problem you may need to replace the motherboard with the same exact motherboard which you can find on ebay fairly cheap, and then if you don't feel too comfortable opening your laptop take it to a computer repair place and have it replaced.
The DST error code 1000-1046 is definitely a failing hard drive. ..I am not sure why your laptop is not recognizing a CD in the drive, but you should go into your BIOS settings, and in boot sequence, make sure that the CD drive is the first boot device. If you can't boot from a CD, you are not going to get very far with installing a new hard drive...
The F5 and F8 functions are normally used by Windows to shoose between C:\, Safe Mode and normal boot.
Setup is a function of the BIOS manufacturer and it could be any key but is normally F1 or F2 as the screen says in your case.
I don't know what your specific problem is but it is a new board and sometimes they don't survive the installation due to improper handling.
The almost universal use of CMOS technology makes some of the chips very sensitive to static discharge even with countermeasures in place to protect them.