CPU: Core 2 Duo E6700 running at 2.67Ghz
Motherboard: Asus P5N32-SLI SE Deluxe
Memory: Corsair XMS2 800MHZ 2Gig
Graphics: 2x XFX GeForce 9800GTX
Using windows 7 64 bits Professionnal edition
I decided today to go buy 4 gig of ram (2x gig) to replace my corsair and went with some Crucial Ballistix 4gig at 800MHz which are supposed to have been tested with the MB and be compatible. Although the 4 gigs are detected by the BIOS, I cannot get into windows, I am stuck at the Starting Windows window. When attempting to boot in safe mode, it hangs when trying to load the classpnp.sys driver. I have tried startup repair to no avail and am now turning to you guys to see if anyone has experienced something similar. It is important to note that I have tested both 2gig sticks and they work individually but when brought together in dual channel, windows doesnt want to boot. I have also tried putting them in single channel and it will not work either?
Anyone can help before I attempt a full format to try and solve the driver issues?
unfortunatly I had already tried that and it did not work. As a test, I took an old XP partition I had on an old IDE drive and it booted up with no problem...I'm starting to think my win7 partition doesnt like this new memory for some odd reason...I have tried all the repairs I could think of and it did not work, I dont really want to format, anyone has any other ideas?
I have tried formatting, flashing my BIOS to the most up to date version, tweaking the voltages and the timings it simply will not work. I have managed to get into windows using the Ballistix DIMMS but it is so unbelievably slow and I cannot figure out why. Booting takes about 5 minutes and once in windows it simply is not bearable. Memory is detected but CPU usage is at 100% at all times. When not doing anything, the processor is split between Explorer and Task Mgr 50/50 for no apparent reason. I simply have no idea what is wrong with those sticks but once again, it seems that using only 1 stick (2 gig total) or using my 2 old sticks for a total of 2 gig aswell works fine but trying to use 2 Ballistix sticks at once for 4 gig, in any DIMM slot combination, simply does not work.
if anyone has any insights let me know before I ship them back. I am afraid of trying out anything else be it another batch or another brand because it seems my board doesnt like anything above 2 gig of ram...
Just a bump here, I have the same setup as orig poster, same mobo, same 2 gigs of corasir ram, same bios version and I'm hitting the same problem with win7 64 bit. Comp goes unusably slow with cpu maxed out. Windows does recognize the 4 GB of memory but the comp is essentially unusable. If I swap my old mem in it's all good. I hit up all of my new memory with memtest86+ and it passed with no failures. Any ideas or an update on this?
Also, if I use just one of my new 2GB sticks instead of both of my old 1 GB sticks, win7 works just fine as well. It's only when I get the total memory above 2GB that I have the issue.