68kMLA Classic Interface

This is a version of the 68kMLA forums for viewing on your favorite old mac. Visitors on modern platforms may prefer the main site.

Click here to select a new forum.
ID PB3400 memory card
Posted by: MOS8_030 on 2018-03-09 08:39:25
I'm pretty sure this is a 64mb card.

Looking for confirmation.

Chips are 4mb Mitsubishi.

Anyone seen this brand module before?

Thanks,

pb3400_memory_1.jpg

pb3400_memory_2.jpg

Posted by: MOS8_030 on 2018-03-17 10:02:32
Still having trouble positively ID'ing this card.

Is this a 64mb module?

Chips are M5M4V16400BTP-7 which ID as 4mx4 apparently.

Doing the maths results in 256mb and the card is labeled "DT256" but of course according to available info neither the 3400/5300 or the PB G3/Kanga can use a 256 module.  So that can't be right. So I'm doing the math wrong.

whatever. Hmm.

Posted by: MOS8_030 on 2018-03-17 19:38:25
Yeah, ok to end this conversation with myself, it's a 32mb module.

Coffee, I need more.

Posted by: CC_333 on 2018-03-20 13:03:25
Yes, your math is correct (as you discovered), but you neglected to convert megabits (Mb) to megabytes (MB, or MiB), so, yeah. Easy mistake to make I think.

c

1