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My dell dimension 2300 powers on,but nothing shows on the screen and i just got a brand new power supply for it.Also when i turn it on the power light isn't lit and it sometimes works.

Answers :

\015\012 Could you please post back with the status of four lights at the back of the system title ABCD. Also does the system shows the dell logo on the screen as and when the power light comes on.
\015\012Try removing the memory and disconnect the HDD and the optical drives from the motherboard and then power on the system. If the system comes on reseat all the above components one by one.
\015\012Thank You for using Fixya
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