I have a FIC PA-2005 board, which has two unpopulated places for extra cache RAM (it has 2x 12bkB on board).
Can I just solder 2 more of the same as the existing RAM chips to the board for 512kB cache in total?
https://theretroweb.com/motherboards/s/fic-pa-2005
The amount of installed cache must be supported by the TAG (the small chip on the bottom right of the VT82C580VP chip).
A-Trend ATC-1020 V1.1 ❇ Cyrix 6x86 150+ @ 120MHz ❇ 32MiB EDO RAM (8MiBx4) ❇ A-Trend S3 Trio64V2 2MiB
Aztech Pro16 II-3D PnP ❇ 8.4GiB Quantum Fireball ❇ Win95 OSR2 Plus!
So I will need a different one?
After watching many YouTube videos about older computer hardware, YouTube began recommending videos about trains - are they trying to tell me something?
dominusprog wrote on 2024-06-18, 17:28:The amount of installed cache must be supported by the TAG (the small chip on the bottom right of the VT82C580VP chip).
Note quite.
For 2MB L2 cache you would need 512K TAG-RAM, therefore a 32-pin TAG chip needs to be present. The PA-2005 is wired for 28-pin chips only. So the upper limit is 1MB L2 and 256K TAG. I haven´t seen a PA-2005 with just 64K or 128K TAG so far.
Sorry for interrupting I have this board too it was FIC PA-2002 but I can’t find drivers anywhere
Anyone know where I can find this mainboard drivers?
DataDragons wrote on 2024-06-18, 18:31:Sorry for interrupting I have this board too it was FIC PA-2002 but I can’t find drivers anywhere
Anyone know where I can find this mainboard drivers?
Start a new topic.
A-Trend ATC-1020 V1.1 ❇ Cyrix 6x86 150+ @ 120MHz ❇ 32MiB EDO RAM (8MiBx4) ❇ A-Trend S3 Trio64V2 2MiB
Aztech Pro16 II-3D PnP ❇ 8.4GiB Quantum Fireball ❇ Win95 OSR2 Plus!
majestyk wrote on 2024-06-18, 18:22:dominusprog wrote on 2024-06-18, 17:28:The amount of installed cache must be supported by the TAG (the small chip on the bottom right of the VT82C580VP chip).
Note quite.
For 2MB L2 cache you would need 512K TAG-RAM, therefore a 32-pin TAG chip needs to be present. The PA-2005 is wired for 28-pin chips only. So the upper limit is 1MB L2 and 256K TAG. I haven´t seen a PA-2005 with just 64K or 128K TAG so far.
Good to know.
A-Trend ATC-1020 V1.1 ❇ Cyrix 6x86 150+ @ 120MHz ❇ 32MiB EDO RAM (8MiBx4) ❇ A-Trend S3 Trio64V2 2MiB
Aztech Pro16 II-3D PnP ❇ 8.4GiB Quantum Fireball ❇ Win95 OSR2 Plus!
Majestyk, can I ask you where you got the 64K x32 chips from? I tried to find the exact type that you used, but couldn't find them for sale anywhere.
Ebay item number 192231329286 for example.
