I believe the DDR part of DDR memory is that it transfers data on the rising and falling edge of the clock RAMBUSS I dont know about it opperates at 4x FSB speed. ----- Original Message ----- From: "Marc Nicholas" To: Sent: Monday, July 07, 2003 7:25 AM Subject: Re: [OT]:DDR memory > On 5/7/03 21:30, "James" wrote: > > > Does DDR memory generate its own clock and phase lock the motherboard? Or > > does it derive its clock from the Motherboard. > > It derives its 'clock' from the FSB. > > > Is it OK for 333MHz memory to sit on a motherboard > > that supports up to 266MHz? > > Yes, AFAIK. In the same way you can put PC133 memory in PC100 slots -- you > won't get the extra performance, but it's fine. > > -marc > > -------------------------------------------------- > Marc Nicholas Geekythings Inc. C/416.543.4896 > UNIX, Database, Security and Networking Consulting > > -- > http://www.piclist.com hint: PICList Posts must start with ONE topic: > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads