In general, no. I have 10ns simms on my LX motherboard and was told that to swap to a BX motherboard, I would have to use 100MHz certified simms. (If I am wrong, I would be happy to hear so.) You need to know whether or not your particular simms are certified to run at 100MHz. (They might be, but also might not be.) Dean Kukral -----Original Message----- From: David Hillhouse <[log in to unmask]> Date: Monday, October 12, 1998 1:56 PM Subject: [PCBUILD] Running 10ns simms >Will 10ns simms run ok on a 100Mhz bus ? > >David Hillhouse ----- PCBUILD mailing list - http://nospin.com Bob Wright:[log in to unmask] - Drew Dunn:[log in to unmask]