A3000 Intermittent Heat Related Problems?

[save2600]

This totally sounds like a bad config in your SCSI transfers. Did you check the battery mem as Mechy suggested? Here's a utility to get you into it:

http://aminet.net/package/util/sys/SetBatt1_0

...MaxTransfer values next in HDToolBox and then your CF card adapter jumper settings are suspect too.

BTW: Are you strictly using a SCSI<>IDE<>CF Card adapter (or SCSI<>CF adapter)?  Does the computer behave when you use a good old fashioned SCSI hard drive?  

I've had mixed results using CF Cards with Amiga's. The cheapo adapters you find on ePay and elsewhere are not always the most compatible and neither are several CF card brands. After all the monkeying around I've done with various HD alternatives, I still find hard drives to be the best, most reliable solutions inside  Amiga's.

[save2600]

I tried using Deneb in DMA mode after the Zip RAM reseating fix and now DMA works!  

So the Zip's weren't actually bad themselves... just were no longer making as good of a connection? Hmm... next time I have my A3000 apart, I'll try that. Can only currently use PIO mode in my system and I've got a higher revision Buster. Thanksf or the tip and glad you got your system all squared away  

Kudos to Mike and Anthony too for their expert knowledge!

[save2600]

If you want to add a bunch of boards to an Amiga computer, get an Amiga 2000, 3000T or 4000T. These three Amiga models were actually designed to be expandable.

OR purchase a BigFoot replacement power supply or mod your own from an orphaned PC  

Strange post. If a computer was not designed to be expanded, they wouldn't have included a Zorro II or III compatible busses with fancy Busters, let alone an accelerator slot.

Real issue here as you pointed out - is the power supply. Cheapo, weak power supply was a cost cutting measure to be sure. Commodore wasn't trying to dissuade people from upgrading their systems, just short changed some of those that wanted to  upgrade at a later date on the initial purchase was all.

[save2600]

Yeah... I'm probably rolling my perceptions of past C= power supplies here, but damn were some of them junk. A1200's being weaker than the A500's (WTF?!) and both needed extra care paid to 'em as far as a user adding to their system. Then there was the 8-bit line whose non-user serviceable brick that most C64's and all C64c's were shipped with, was not designed to power much more than a cartridge or tape drive. Heck, you're not even supposed to plug one of their REU units into 'em without modding the REU or replacing your power supply. That's what I've read anyway. Have yet to even plug in my 1750 and am kind of scared to since I've read all the horror stories.

Think I'll post a new question instead of littering this thread