Blizzard 1230 IV

[pipper]

Originally Posted by cpiac64

i have repaired a blizzard iv and sold some moths ago, the card have a problem with fastram, solved add a wire from cpu and simm socket, now work fine with 128mb

please boot form df0: without s-s then write loadwb next type endcli or type avail

Care to elaborate what the issue was and which connection you replaced?

[HardStep]

Originally Posted by pipper

I had trouble with Blizzard 1230IV being picky about memory, too.
I had success with modules from this seller: https://www.ebay.com/itm/184212196201

I am in no way associated with the seller.

I bought my Blizzard1260 2x128mb SIMMs from that seller too, as well as my brother 128mb for his 1230IV.

[cpiac64]

Originally Posted by pipper

Care to elaborate what the issue was and which connection you replaced?

if you have a tester, you can check some point


read the pinout of simm and chek only address go to chips buffer

[Daedalus]

Originally Posted by Kin Hell

Not all 72 Pin SIMM's are always compatible. - EDO packages are normally 36Bit, 4 bits for Parity.

36-bit modules are fully backwards compatible with 32-bit modules; Amiga accelerators can and do use 36-bit EDO modules all the time by simply ignoring the parity.