Stress Test & Graphic Test Software - Classsic Amiga

[Kernel]

What is a good piece of software that will stress test a classic Amiga?  I'm looking for something to test memory, processor, custom chips, etc. to see how stable the system is.  I believe my A3K to be stable, but I'd love to run something that just peppers the system for 4 - 6 hours with a heavy load to see what happens, given its age.

Not looking for anything overly complicated though.

Another thing I'd like to find is something that will test all aspects of the built in video.  I'm using the VGA output on the A3K with the Deinterlacer enabled; at first boot the screen appears to have interference but afer a few minutes it goes away and appars to be rock solid, although I have seen some cases where backdrops (for example, some from MagicWB) appear to have graphic glitches in them.  I could attach a picture of the display I suppose...

Thanks.

[Kernel]

Well, the A3K burn in disc I found on one of those links pointed out that my Amiga Technologies keyboard had an issue with the TAB key... took it all apart and made sure it was pressing properly and the membrane was clean, but still no go.

Unfortunately, the other (2) keyboards I have are standard Commodore A3K keyboards so the internals are not membrane based like the AT one which means I cannot test the membrane or control board in those keyboards.  So I did the next best thing... swapped the long cable onto the working A3K "Commodore" branded keyboard (the other one works, but is missing the "1" key).

As for the other tests on the disc... it seemed like a lot of them recognized my 25MHz machine only as 16MHz and I could not find any documentation... so I'm going  to try some of the other recommendations.

[Kernel]

I'll try that next... all appears well with AIBB and pretty much on the mark with a stock A3K 25MHz so far.