I don't know of any off-hand, however one place to start would be to scan
for 'cross-references' from other vendors like IDT, Toshiba, Samsung, Intel,
Motorola, etc. Now, pin for pin may not buy you anything in this situation
here. Just by the fact the Sony chip was an a thin carrier lends itself to
the possibility that that cache chip may not have been the original
designated design by the system engineers. You can move pins around on
these chip carriers based on your own requirements and availability of
parts. It's also a technique used to cover a design error which was
discovered after the motherboard had already been screened. I would have to
say the highest probability for success would be to have the new chip mount
on the thin carrier as opposed to straight into the daughter card. I'll
certainly look around for you. But I don't go back to the lab until
Tuesday. I can't remember the exact URL for the source parts database but I
do know it's part of IEEE. You can start by going to ieee.org. Warning
though, signing up to the database will lead to a ton of solicitation mail
from every component manufacturer with a new product. I will dig through
our library for a hard copy of the cxk78 next week.
Jack
----- Original Message -----
From: "Tom P" <[EMAIL PROTECTED]>
To: "Duo/2400 List" <[EMAIL PROTECTED]>
Sent: Friday, May 25, 2001 2:43 PM
Subject: [Duo2400] Re: PB2400 CPU module L2 ?
> >I do believe the part number is:
> >
> > CXK78V6002GB-40. The '40' designates it's 4.0 nSec. Static Ram. I
also
> >believe this part was discontinued a few years back. I have to go
through
> >our library at work to try and dig up the data sheet. If you're still
> >interested I can fax the data sheet providing I can find it. From the
> >picture, it looks as though the chip itself is on a carrier card. It's
not
> >uncommon to be mounted as such considering there's probably over a
hundred
> >pins there.
> >
> >Jack
>
> Jack, I am interested in any info you have. Do you know of a good
> way to find out if there was a 256K/512K L2 cache made that was pin
> compatable with the 128 K L2 cache I have ? Any good online sources ?
>
> thanks,
>
> Mad Dog
>
>
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A listserv for users and fans of Mac subportables.
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To switch to the DIGEST mode, E-mail to <[EMAIL PROTECTED]>
Need help from a real person? Try. <[EMAIL PROTECTED]>
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Dr. Bott | 10/100 Ethernet for your 2400 is finally here!
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Digital Solutions | ...you should check them out! http://www.NineWire.com/
Midwest Mac Parts ][ <http://www.midwestmac.com>
After-market parts for Macs. ][ 888-356-1104 ][
MacResQ Specials: LaCie SCSI CDR From $99! PowerBook 3400/200 Only $879!
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