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confusion
Tux's lil' helper
Joined: 24 Mar 2004
Posts: 132
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 Posted: Sat Aug 06, 2005 9:15 pm Post subject: Mix 2 sun 64mb 50ns with 2 compaq 64mb 60ns: shows 192mb! :( |
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Hi there. I purchased 128mb of 60ns ECC EDO 168-pin DIMM (compaq, two 64mb modules) quite cheap on ebay. On their own the memory works perfectly, as do the two sticks of 64mb 50ns sun memory i already own. When i mix the two however (this is in an ultra 5), the sun shows my total memory as only 192mb, and not 256. Is this a known problem? Have i done wrong in mixing the different speeds? I'm absolutely baffled as on their own (sun and compaq) the ram seems to work fine. I've noted one or two support sites warn against mixing 11-bit and 10-bit ram modules. Have i done this unknowingly? Would it produce the effects i've experienced?
I'd appreciate any input, my thanks in advance!
-John |
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NewBlackDak
Guru
Joined: 02 Nov 2003
Posts: 512
Location: Utah County, UT
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| Posted: Mon Aug 08, 2005 8:03 am Post subject: |
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Have you tried to populate the dimms in different orders
eg
sun in 1&2
compaq in 3&4
compaq in 1&2
sun in 3&4
sun in 1&3
compaq in 2&4
_________________
Gentoo systems.
X2 4200+@2.6 - Athy
X2 3600+ - Myth
UltraSparc5 440 - sparcy |
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confusion
Tux's lil' helper
Joined: 24 Mar 2004
Posts: 132
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| Posted: Mon Aug 08, 2005 1:34 pm Post subject: |
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| NewBlackDak wrote: | Have you tried to populate the dimms in different orders
eg
sun in 1&2
compaq in 3&4
compaq in 1&2
sun in 3&4
sun in 1&3
compaq in 2&4 |
Yeah i think i tried that. Shows 192mb with the first two, but i did try the sun in bank 1 and compaq in bank 2 (for 128mb) and i it only shows 64mb. (ie only one card is recognised).
Cheers,
John |
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