30 July 2024, 11:22 | #1 |
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A500Plus + GVP IMPACT SCSI HD + accelerator
I wanted to ask if there is any truly compatibile accelerator that will work fine with my GVP SCSI? There are a lot of issues with DMA 32bit ram and GVP/2091 controllers. Was looking for old 68000 14/28mhz accelerators like SUPRA TURBO 28 etc to avoid 32bit ram addressing issue.
Thanks for help. |
30 July 2024, 12:12 | #2 |
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Why would you want to keep your GVP SCSI controller? It's slow, power hungry and takes up a lot of desktop space. If you're in the market for an accelerator why not sell it and use the HDD controller & RAM integrated into your new accelerator?
If it is because you would like to keep the contents of your HDD then I am sure there is a simple method to transfer the contents to your PC. (e.g. PCI SCSI controller = Fastest, Amiga Explorer + serial cable = slowest) |
30 July 2024, 12:36 | #3 | |
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30 July 2024, 12:44 | #4 |
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Back in the 90s I ran my 500/GVP-HD+ combo with a VXL30 and RAM32 card without problems. Not easy to find those cards these days but I've seen them show up from time to time.
Downside with the VXL30 is that you won't benefit from it if you don't have the RAM32 addon. Also, it was only avaliable with 2 or 8 MB and the chips needed to upgrade one from 2 to 8 MB are more or less unobtanium. I'd still use mine if I could find those 1Mx4 chips because my TF536 is pure crap. But besides that, it worked like a charm for me back then. |
30 July 2024, 12:46 | #5 | |
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30 July 2024, 12:47 | #6 | |
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I found something like this Blizzard Turbo Memory https://amiga.resource.cx/exp/blizzard500 Maybe this is a good choice? |
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30 July 2024, 12:53 | #7 |
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Unfortunately
"I didn't find these with google Amiga HdToolbox mask values 0x5FFFFe should allow zorro II ram 0x1FFFFe should allow only chip ram How ever this acclerator doesn't work with GVP HD8+" |
31 July 2024, 00:17 | #8 |
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