http://forum.lowyat.net/ Wed, 07 Oct 2026 22:22:59 +0800 FeedCreator 1.7.2 http://forum.lowyat.net/topic/3653497 Good afternoon everyone~<br /><br />My OS: Window 7 home premium sp1 64bit<br /><br /><br />I just upgraded my dell optiplex 755 SFF with 8GB RAM (4 x 2GB each) when i power on it will keep beeping and lighted 3 &amp; 4 (base on the web, it said that memory issue)<br /><br />But when i remove 1 slot of the 2GB ram (Now become 6GB ram) it work.<br /><br />I tries the ram 1 by 1 it show no problem at all, but when i put all of those ram into 4 slot, it keep beeping and lighted 3 &amp; 4<br /><br />Sometime (maybe lucky) , it successful boot up and while on the window loading screen (Before entering welcome screen) the computer automatic restarted.<br /><br />I wolder what happen?<br /><br /><br />Similar to this question :<br /><br /><a href='http://www.tomshardware.com/answers/id-2236096/dell-optiplex-755-8gb-ram.html' target='_blank'>http://www.tomshardware.com/answers/id-223...55-8gb-ram.html</a> kurokami98 Technical Support Sun, 19 Jul 2015 16:37:09 +0800