After add in 1 gig memory Vista boot up slow and black screen.
I just bought a DELL E521 PC with 1 Gig ram DDR2 5300 , decided to add 1 Gig
more memory DDR2 4200 where from the old system, after install Vista boot up
slow and black screen. After removing it no problem. Tested the system only
run at 1 Gig, do I need to reinstall to recognise the ram.
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