RE: With newer chipsets, is ECC memory slower ? Worth the penalty ?

["Paul McHale" <paul@doubleesolutions.com>]

Bob,

> Having said all of that I will say that all of my servers which run
> 24/7 all have ECC memory in them and they are very reliable.  The disk
> drive is the least reliable part for me and I use RAID to offset that.
> ECC is barely more expensive than non-ECC.  I always look for ECC when

I do have one possibly dumb question.  The chipset is 875P which supports
dual channel 400MHz DDR.  So far so good.  Intel claims the fastest
configuration is 4 DIMMs of all double sided.  This amounts to PC3200.  I
found a site which offers PC3500 (CL=2.5 vs CL=3).  Here is the link:

http://www.oempcworld.com/item.jhtml?UCIDs=66527%7C1218117&PRID=1314991

It also claims this is DDR 433MHz.  Hence my confusion.  To perform at
PC3500, is the change in CAS latency enough or must I overclock to 433MHz.
If overclocking is required (which the BIOS doesn't support) then the CL of
2.5 would perform at CL rate of 3.  Is the above any faster than:

http://www.crucial.com/store/listparts.asp?Mfr%2BProductline=Dell%2BPowerEdg
e&mfr=Dell&cat=RAM&model=PowerEdge+400SC&submit=Go

I think the answer is yes, but I would appreciate the sanity check.

Many thanks,

Paul


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Paul McHale
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