PS3 Ram Upgrade on fat Models

Maybe you're misunderstanding my post, "four 64MiB 16-bit" mean four 16-bit chips total on the board. Each channel of cell have two chip connected to. Cell have two channel 32-bit each, this means 64-bit total, 64 DQ/DQN pins. Perfectly fit all the chips.

Bits is all about bandwidth, 64-bit total is maximum that cell can do. You can use bigger chips, more bits but there is no more DQ pin on cell to be connected to so it must left float. Then configure each chip to run at lower bandwidth/bits. You will get more capacity but total bandwidth still same.


XDR-quad_to_CELLBE_to_SouthBridge_diagram.png
yep, alright. got it now.
that would be an alternative if its possible to pick other chips with higher bandwith by just reducing bandwith. didnt know thats possible. im not that familiar with ram, didnt mess around with it a lot in the past so i do have to learn many things about it. aint got no idea how addressing ram actually works, im just looking at it from a sheer mechanical perspective.
 
yep, alright. got it now.
that would be an alternative if its possible to pick other chips with higher bandwith by just reducing bandwith. didnt know thats possible. im not that familiar with ram, didnt mess around with it a lot in the past so i do have to learn many things about it. aint got no idea how addressing ram actually works, im just looking at it from a sheer mechanical perspective.

Yes, the problem is XDR itself is rarely used outside ps3. Even finding the chip that is used on ps3 is hard. Better get junk ps3 board and pull ram from it. I have no hope for ram model outside ps3. If bigger capacity and pin compatible exists.
 
Yes, the problem is XDR itself is rarely used outside ps3. Even finding the chip that is used on ps3 is hard. Better get junk ps3 board and pull ram from it. I have no hope for ram model outside ps3. If bigger capacity and pin compatible exists.
that was my issue. Only Wii and Xbox360 is using the same ram.
 
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