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crazyeights
12-14-2000, 12:07 PM
I have a 64Mb stick that I really would like to know; what is it?

Looked around this forum, and still couldn't make sense of it all. Here is what is on the stick.

On each of the RAM chips on the stick are the following lines of characters:

HY5117400B
J-60 (i presume that is the speed in nano seconds)
9907B Korea ( I know what Korea means, why, beautiful asian women of course!! http://macgurus.com/infopop/emoticons/icon_biggrin.gif)


On the smaller chip in the center of the RAM chips (CONTROLLER CHIP?) are the following lines and characters (damn that print is small, or chronological erosion is setting in, you know, aging):

CY74FCT16244ATPVC
B O4 PHI 9905
CYP 602823

Can anyone decipher what kind of memory this is?

It worked in my PowerCurve, along with a 16MB stick.

When I put those 2 in my PTP, along with a 32Mb PowerComputing stick, the machine would boot up and the screen draw would be a fragmented mess, with the machine locked up.

When I took out only the above described 64Mb stick, the machine would boot and run.

Any help and educational oratory is greatly appreciated.

Dave

kaye
12-14-2000, 01:32 PM
c8,

Looks like 60ns (J-60), FPM (the 00 in HY5117400B).

The 6244 in CY74FCT16244ATPVC on the timing chip means the memory is buffered but not dampered. k

crazyeights
12-14-2000, 04:06 PM
Thanks kaye,

So that's what the little chip does......it handles the timeing.

Do you (or the rest of you ru's) have any ideas on the behaviour I mentioned, ala migrating this 64Mb stick from my PCrv to the PTP?

As always, your help is appreciated....all of ya's.

c8