View Full Version : samsung pc1066 rambus stepping
JBELL
11-03-2002, 09:48 PM
HELP!
I got two sticks of samsung pc1066 256mb ram
stepping #1:
MD16R1628DF0-CN9 RIMM4200
stepping #2:
MD16R1628AF0-CN9DF RIMM 4200
which is better?
Dont you have to use 2 sticks of rambus to get a system running?
Sorry, Im intelstupid, but thought I read that somewhere...
JBELL
11-03-2002, 09:53 PM
no not with Samsung pc1066 ... other brands - yes
See, told yea Intelstupid... Wish I could help yea, sorry.
JBELL
11-03-2002, 09:56 PM
Originally posted by IFMU
See, told yea Intelstupid... Wish I could help yea, sorry.
lol i'm new here too...
Chirtsu
11-04-2002, 04:13 AM
Link (http://www.samsungelectronics.com/semiconductors/search/datasheet.jsp?family=558)
This is the link to Samsung Rimm datasheets. As far as I can tell there is no real difference in the specifications of the two modules as both are 32ns parts. It looks like there is probably a revision in the manufacturing process but I don't know which module is proven to be more reliable.
JBELL
11-04-2002, 02:19 PM
stepping #1:
Part Number(Old) - MR16R1628AF0 ( - )
Density(MB) - 256
Organization - 128Mx16
Comp. Composition - 256M 2ndx8pcs
Voltage(V) - 2.5
Refresh - 16K/32ms
Speed(MHz)/ tRAC(ns) - 800-40(45)
#of Pin - 184
Production - Mass Productoin
StatusComments - SS
stepping #2:
Part Number(Old) - MR16R1628DF0 ( - )
Density(MB) - 256
Organization -
128Mx16
Comp. Composition - 256M 5thx8pcs
Voltage(V) - 2.5
Refresh - 16K/32ms
Speed(MHz)/ tRAC(ns) - 800-40(45), 1066-32P(*Note1)
#of Pin - 184
Production Status - Mass Productoin
Comments - SS
petervandamned
11-13-2002, 11:27 AM
send them over here :) or is it 16 bit ?
i will push both to the limit on my epox NP :toast:
then i will tell what is the best and return them of course ASAP
JBELL
11-13-2002, 03:03 PM
Originally posted by petervandamned
send them over here :) or is it 16 bit ?
i will push both to the limit on my epox NP :toast:
then i will tell what is the best and return them of course ASAP
32bit brother...
one stick was borrowed other one - the newer one is mine.
ryanpgroovy
11-14-2002, 11:29 PM
they will work together fine ;-)
Phalanx28
11-17-2002, 07:55 PM
Originally posted by JBELL
no not with Samsung pc1066 ... other brands - yes
No, you're a bit confused. With 32-bit RDRAM, which uses the RIMMxxxx moniker, you need only install one RIMM.
All other types of RDRAM must be installed in pairs. It has nothing to do with brand.
Quality, however, does.
To answer your original question about which is better, the N9 suffix means you have 32ns RDRAM, which is the best there is for 32-bit Samsung modules at this time.
The difference between DF and non-DF named modules has to do with Samsung just recently revising their part number scheme.
For more information:
http://www.samsungelectronics.com/semiconductors/dram/part_number_decoder/rambusdramrimm_new.htm
Phalanx28
The first one (MR16R1628AF0) isn't PC1066, is it? I think it's an old A-die part.
Pretty sure the other one is the newer 32p stuff.
Phalanx28
11-18-2002, 05:59 PM
Originally posted by *foo
The first one (MR16R1628AF0) isn't PC1066, is it? I think it's an old A-die part.
It's been validated at PC1066-32ns speeds with the N9 stepping.
http://www.samsungelectronics.com/semiconductors/DRAM/Rambus_DRAM_RIMM/x32_RIMM/Non-ECC/MD16R1628AF0/md16(18)r1624(8_g)af0.htm
Phalanx28
As near as I can tell, they're the same memory. I believe the DF ones come or came with Asus P4T533 boards (the -R ones).
I could be wrong, but it's been that way for me. They both OC just as well for me (165x4...but not stable because of the boards).