A few days ago I was having a funny problem with some RAM. After playing around with the settings I have seen some mixed results. I think my best bet would be to just RMA it back over to newegg. Anyways, here goes: Current specs: ASRock 939 Dual SATA2 AMD 64 3700+ 1GB (512x2) OCZ 2.5-4-4-8 GeForce 6800 AGP 40GB IDE 7200 drive 120GB SATA 2 drive I just bought 2 more sticks of identical RAM. I had my system overclocked up to 215mhz to bring my settings to 2.36Ghz, with 430mhz RAM. I've been running like this for a while now without a single problem. Anyways, the new RAM runs fine on this setting. I can run Oblivion and every other program on my computer flawlessly for hours, with the exception of random Oblivion crashes because thats what happens heh.. However, with the new RAM installed, any time I try to print anything, my computer reboots. It doesn't matter if it is from Word, or a document from the internet. I reinstalled my printer drivers and it still crashes on me. I ran memtest and it failed tests 8 and 9. I removed the 2 new sticks and everything worked fine. I switched the sticks to opposite sides on the mobo, but it still crashes. The new sticks by themselves in any dual channel slot crash the computer. BUT...it only crashes when I try to print something... I cleared CMOS and used the default clock speeds, but the system still crashes with the new RAM in it. Oh!, and heres the clincher! When I downclock the RAM setting to DDR 333mhz, and leave the 200mhz fsb, the system doesn't crash while printing... This strikes me as odd because the system only crashes when I try to print something. So, what are my options after I RMA it... I'll get 2 new sticks, and if they still do the same thing what can I do? I've never experienced anything like this before. I may try reinstalling XP, or maybe formatting my HD, which I just did last week... I highly doubt it is a mobo problem because the old sticks work in both dual channel slots... Wow, this post dragged on longer than I wanted.. Feel free to add some input, but I am definitely RMAing this RAM.