little_prince41 Posted May 25, 2009 Report Share Posted May 25, 2009 My notebook is acer 4520G. I want upgrade 8400M G to 8600M GS. yesterday, I buy 8600M GS (G86-770-a2) .When i upgrade success. then I boot it but it is black screen and not boot and restart Am I must update new bios video? , now my bios is v.3632 can you help me,please thank Quote Link to comment Share on other sites More sharing options...
Guest GUARDIAN69 Posted May 29, 2009 Report Share Posted May 29, 2009 are u hearing sounds from the operating system? if you are hearing he sound and having an black screen but lighted up your card is defective i was having the same problem 2 months ago and the mac recycling company exchanged my card to a new one now i am more than happy :) Quote Link to comment Share on other sites More sharing options...
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