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Conference giadev::decstation

Title:DECstation PC Conference
Notice:register note 2, see notes 3 & 4
Moderator:TARKIN::LININD
Created:Tue Jan 10 1989
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:7470
Total number of notes:34994

7461.0. "4x3x30 == 4x4x30 ?" by 33102::JAUNG () Mon Jun 02 1997 21:19

    
    What is the difference between 
    
    	4 Meg 30 pin 3 chip 70 ns Simms    (auctioned on internet)
    
    and
    
    	4 Meg 30 pin 4 chip 70 ns Simms    (ref 7259.1)
    
    Are they compatible?
    
    Thanks in advance.
T.RTitleUserPersonal
Name		DateLines
7461.18Bit vs. 9bitJULIET::HARRIS_MANetworks Sales ExecWed Jun 04 1997 14:4611
    3-chip usually refers to 9bit memory sticks. 2 chips for data, and one
    for parity (a different chip)
    
    4-chip can refer to 8bit memory. ALl for chips used for data.
    
    The key is most pentium motherboard can have EITHER type installed
    since they do NOT use hardware Parity by default.
    
    Most all 486 and newer Pentium-Pro motherboards require 9BIT memory.
    
    Mark
7461.233102::JAUNGWed Jun 04 1997 22:044
    ref .1
    
    Thanks for reply.