From: David Ross (ross_at_math.hawaii.edu)
Date: Thu Sep 20 2001 - 14:21:42 EDT
> BEWARE...I had one of these in my T21 and while it seemed to work OK, no
> errors, proper countup, etc., the system would NOT go into BIOS setup with
> the Crucial 256mb SODIMM installed. I removed it and all is well.
>
> I noticed that the IBM spec for the RAM is CL=3 and the Crucial RAM is
CL=2.
> What is CL and do we care?
This refers to the column access strobbe (CAS), which is an introduced
delay factor.
CL 2 is a stricter (faster access) memory spec than CL 3, since the delay
required is smaller; lower
is better for RAM CAS.
Did you speak to the Crucial people about this chip? Since the BIOS setup
shouldn't even be talking to
the chip (except when you run the advanced memory test), there must have
been a problem at the level of the
chip socketing electronics, or similar.
- David R.
This archive was generated by hypermail 2.1.3 : Thu Jan 23 2003 - 09:57:33 EST