Ok, so I've just been through an adventure setting up a Powermate 386/33i... as you'll realise if you read the "how-to" info I've just posted for posterity. 😀

The one thing I'm yet to resolve is that it's running quite slowly. (Apparently the Powermate 386s were a bit slow anyway).

• NSSI benchmarks it at about the same speed as a 386DX-25, and reports the CPU as AMD not Intel. (Similar results with sysinfo, topbench)
• It's meant to have 32kb (I think) of external cache but cachechk reports none
• Setting the startup system speed to High or Low makes no difference
• Enabling / disabling cache in the BIOS makes no difference (but this could be a setup utility issue; see other post)
• NEC's turbo.exe utility (found in DOS 3.3 on winworldpc.com) doesn't do anything
• NEC's winturbo.exe from the SX20C hardware utilities doesn't do anything
• Key combinations like Alt Ctrl numpad +/- don't do anything

The conclusion I'm left with so far is that the cache is faulty and/or CPU damaged, or these are just slow and benchmarks are inaccurate. (I'm yet to do real world timing tests & compare to my other 386 systems)
Do you concur / any other ideas?

Anyone out there also have a Powermate 386/33i and can help?

Yes, that probably would have been a good question to ask before the adventure described in my other post... but we like the challenge of trying to solve things ourselves, right?! 😁