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Old 25 May 2020, 02:13   #21
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Originally Posted by cpiac64 View Post
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?
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Old 25 May 2020, 04:10   #22
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Originally Posted by pipper View Post
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.
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Old 25 May 2020, 09:36   #23
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Originally Posted by pipper View Post
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
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Old 25 May 2020, 09:51   #24
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Originally Posted by Kin Hell View Post
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.
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