Legit Reviews

cant install 4gig+ on 64bit vista

spec: acer aspire am5100-u5201a desktop / vista 64bit / system use pc2-5300

my goal is to install 6gig ram.

when i try to install 2x 2gb corsair dhx pc2 6400 5-5-5-18 and 2x 1gb corsair dhx pc2 6400 5-5-5-18 which is total of 6gig.. when i boot up... powers on.... but dont hear sound of booting and screen is black.


when i try to install 2x 2gb corsair dhx pc2 6400 5-5-5-18 which is total of 4gig.... when i boot up... powers on.... boot to desktop. click "start menu" shows flickering and loud noise comming from the tower.... 5min later screen is black.


i can install 1gig, 2gig and 3gig fine. but above 3gig.... problem occur. it might be my memory setting in bio? i went to the bio and see no memory setting at all. and i heard increasing volt might work.. but how? i went to bio and see nothing related to memory at all.

Try installing each stick of ram by itself. You could possibly have a bad stick of ram, and this will narrow down your problem.

http://www.google.com/url?sa=t&source=w ... jZlWE_ye2A

Looks like your system can only handle a maximum of 4 gigs of RAM, sorry bud.

He is saying that he can't even get 4gigs working, but yes, your motherboard doesn't support more than 4gigs

yeah i cant install flat 4gig.

i can install 1gig, 2gig, 3gig but not 4gig..... or 5gig, 6gig.

there is something wrong right? since i cant even install 4gig.


plzzzz help

you might want to switch out each memory stick 2 see if they all are functional. and check if that each slot your using is also functional. =O

http://forums.legitreviews.com/about17282.html#p120340

have you tried 4gig in 1gig sticks ie: 4 x 1 gig you may just get it to work some mobo's don't like playing nice with Dimms that are more than 1 gig in size, i had a similar problem with a socket 754 board that didn't want to see 4 x 512 DS dimms (ds= Double sided = ram chips on both sides) the way around it was to use 4 x 512 SS dimms (ss= single sided = ram chips on 1 side only) instead worked like a charm after that, it had to do with how many banks of ram the cpu could see ( dimm 1 = bank 0 and bank 1, dimm 2 = bank 3 and 4, dimm 3 = bank 5 and 6, dimm 4 = bank 7 and bank 8 ect) thats if you use Double sided dimms well turns out the memory controller in the cpu (athlon64 3700+) could only see 6 banks easiest way around it use single sided dimms as 4 of them equates to 4 banks problem solved

sorry if i prattled on to the point dont use 2 gig dimms just 1 gig dimms