Is this true?? RDRAM HAS to be use all memory slots?

DigitalCancer

Diamond Member
Apr 6, 2004
3,726
0
76
A friend was telling me that in order to use RDRAM in your system you have to fill up all of the slots...is this true?? I was thinking it was just like other ram where you could use just one stick at your discretion...any thoughts??
 

Smilin

Diamond Member
Mar 4, 2002
7,357
0
0
If I remember right, you gotta use pairs and you gotta put stubs in the unused slots.

Awful stuff. decent throughput but the latency was ******.
 

DigitalCancer

Diamond Member
Apr 6, 2004
3,726
0
76
weird...so you DO have to fill all slots? that just...crazy. I almost bought some back in the day for my wifes P4. Glad i didn't cause i was just going to pick up x2 512's for'er. =/
 

JDMnAR1

Lifer
May 12, 2003
11,984
1
0
Actually, it depends on the motherboard. In my old Dimension 8250, it did have to be installed in matched pairs, and continuity modules had to be in any non-populated slot. In the OptiPlex GX300 I have sitting under my desk, matched pairs are not required, but the continuity modules still are.
 

Noema

Platinum Member
Feb 15, 2005
2,974
0
0
Just thinking about RDRAM brings my blood to a boil :|

I have an ancient Compaq that uses RDRAM, but it's at my parent's house and I can't check if all the slots are being used up in it. IIRC the base RAM it comes with was actually soldered in and the remaining slots are free.

Compaq...*shudders*
 

compudog

Diamond Member
Apr 25, 2001
5,782
0
71
RDRAM "RIMMs" must be installed as sets. If you have four slots, say, 1 & 2 each have 256MB, then 3 & 4 would have a blank "continuity" board installed. This is a bare PCB that closes the "loop" on the signal. If you wanted to increase the RAM, you would remove the CRIMMs (Continuity Rambus Inline Memory Modules) and install another pair of RDRAM RIMMs.