Hi, I just added 512 stick of double sided PC3200 RAM for totall of 1024 and my PC will not boot to OS windowsXP-Pro that is any idea why?Passes all CMOS tests just then it's time to load the OS it's just black screen nothing happens both sticks work separatly OK and are in correct DIMM rows when both installed.Thankssome system info below

Hi Andy,are both sticks from the same manufacturer, and if so, do they contain the same chips? I would suggest contacting the RAM manufacturer - a while ago I had a similar problem with some Kingston RAM that wouldn't work on my A7N8X motherboard. According to the Asus and Kingston website, the RAM was approved for use with the motherboard and there should be no problems. However, when I contacted Kingston, the support guy identified the problem as being incompatible chips on the RAM module, and send me a replacement stick with different chips.That's all I can think of at the moment, apart from the slots being faulty, but I presume you tested them all?Cheers,Gosta.http://hifi.avsim.net/activesky/images/wxrebeta.jpg

Don't know what I did or the putter gave up being difficult but it finally booted up first I guess somehow of the Original CD guy from MS told me to the a parallel install, but finally it started, well at first it wouldn't even boot of of a CD nothing well it worked so I ma happy as for FS improvement :-roll... well....:( OH well I don't mind maybe some other programs will use it :-)