Is the 390x limited to low density memory?

Older ThinkPads.. from the 600, the 7xx, the iSeries, 300, 500, the Transnote and, of course, the 701
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fodder650
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Is the 390x limited to low density memory?

#1 Post by fodder650 » Thu Apr 10, 2008 8:18 pm

Currently running a PIII 450 Thinkpad 390x. Bought 2 256MB pieces of memory and couldn't get them to work.

After a lot of experimentation and google searching. It appears I am limited to low density memory for a 390x. Is this the case?
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#2 Post by rkawakami » Thu Apr 10, 2008 8:57 pm

IBM documentation says the 390X uses PC100 memory and the Intel 440BX chipset; same as what's in a 600X. So I would say "yes, it does need low density memory". 256MB modules will need to have 16 chips on them (8 per side). Otherwise known as 33L3069 or 33L3070 FRUs.
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