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Installing a third RAM stick causes failure to boot Vista. All RAM sticks work, one at a time or in pairs, in any combination of sockets, but adding a third stick causes blue screen of death and adding a fourth stick causes boot to hang at ''F2=setup'' screen.


Answers :

As all clarification requests, you should be more specific so we can help you.\015\012\015\012Now your problem could most probably be that the third RAM you want to put does not comply for dual channel. If you want to use three DIMMs in a dual-channel configuration, install a matched pair of DIMMs equal in speed and size in DIMM 0 (blue) and DIMM 1 (black) of channel A.\015\012Install a DIMM equal in speed and total size of the DIMMs installed in channel A in\015\012either DIMM 0 or DIMM 1 of channel B. Your best bet is to have all your RAM in identical configurations of bus speed and size.
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