You're welcome. I ordered two as well. Now my equipment for my small 7.6.1 machine is complete. All that remains is to do the work...Available quantity reduced by two! Now my 6360 won't have to go without and the $4.95 lidless 6400 can have one of these too.
Gotta figure out if there's much difference in performance between these and my G3/466/1MB Crescendo on the 6500 MoBo, it clocks down to 400 MHz on the 50 MHz Bus, but goes full bore on the 6360's 40 MHz Bus. :?:
Thanks for the heads up, comrade trag! :approve:
I've been looking into upping the cache to 1MB from 512KB. It looks like the 512KB cache chips are still available from Digi-Key. They're about $10 - $15 each (two needed). I actually have about 50 chips on hand with the needed capacity, but they're only rated for 166 MHz and I think one needs 200MHz for this application?
I see two obstacles to such an upgrade.
1) Those cards are usually really crowded. Soldering on them is therefore more challenging because of nearby components and tight clearances.
2) I don't know if there are resistors which must be changed on the card for 512KB cache vs. 1MB cache. How does the CPU know the amount of cache present? Does the software enabler tell it? If so, how does the software know? Are there ID resistors (PDD)?
I have a datasheet from Motorola for the G3 ZIF module (they call it something else) and that module does have ID pins on board to indicate the size and speed of the cache. Interestingly, the ZIF module is also designed to accept a 604e according to the datasheet. But I don't know if that's relevant to how Sonnet would have designed their L2 upgrade.
Anyone have a 400/1MB card or 500/1MB card of which they'd like to make a high resolution scan of both sides? I'd bet that Sonnet used the same board for all three models, which would mean that any necessary differences should be apparent on the higher end boards.