A500/GVP HD8+ issues.

[darksun9210]

might be worth checking the PSU from the HD8+ that you're getting a stable 5 volts.
My HD8+ had cap squeal from the PSU for ages, but seemed to be working, then the squealing got slowly more noticeable and eventually the PSU gave out over the course of a year or two getting more and more unstable.

I got some PC molex power extension leads and butchered up a feed from the A500's internal floppy power port to run externally to feed the GVP HD8+
I'd also pulled out the HD8+'s original 52Meg drive, and swapped in a compact flash solution to - as far as i could figure - reduce the power requirements.

turned out to be a blessing when my A530 arrived as it didn't turn up with a PSU.

[darksun9210]

Another little bonus of switching to flashdrive is you can pop the card out, stick it in a reader on a modern machine and take a backup of your drive - or a restore just as easily. SCSI cards are not exactly a commodity these days!
Plus you can "build" your machine in winuae before sticking it into "real hardware". but personally i'd build it all via an external gotek for the warm fuzzies of using a floppy drive.

i'm tempted to get another A500 just to plug my HD8+ back into. may even keep it stock OCS 1.2/1.3 for that time capsule feeling. 

where to put another machine though!

[darksun9210]

AHA! the Supra Turbo28 runs fine with the GVP HD8+, but it limits the ram to 4meg as it needs some of the addressing for its sram cache.
sure it's not 030 fast, but it's a 4x uptick on stock... that was my config - still able to hold it's own vs all my friends who got A1200's and then fast ram upgrades...