I think my A4000 may be dead.

[ShadesOfGrey]

@filson

Thanks for the URLs, but they pretty much have the same info as I got elsewhere.  I had a hardware reference manual for my A2000, but alas, I have none for my A4000.

[odin]

@shades:

I wouldn't have a clue either...I've only used Amiga's where the chipmem is glued to the mobo :-)

This guide might be of use to you maybe.

This website is oriented at old macintoshes (macintoshi?) but in regard to figuring out what kind of simm you actually have this can be quite handy, although it doesn't incorporate every ram manufacturer.

[ShadesOfGrey]

Brian wrote:
Sorry.. thought you had the original CPU board around to use instead while testing stuff (or better yet a soldered on 030 like my old 4K had .

Unfortunately I do not.  I got my refurbished A4000 with a GVP T-Rex II from Software Hut in a trade in deal.  I've sent an e-mail to them hoping they can offer me some assistance.


The sad part is, I was about ready to take the plunge and get an Elbox Mirage 4000 Pro as a stop gap measure until AOS4 is released.  Or rather after I could afford to buy an A1 w/AOS4 after having bought a relatively expensive tower conversion kit + PCI busboard.  Now I don't know what the future holds for me and 'clas*sic*' Amigas.

[ShadesOfGrey]

@odin

Well, looking at the SIMM it has the folling silk screend on to it:

81C4256A-80
9328 T71
PJ

I'm assuming the '256' in "81C4256A-80" indicates that each chip is 256K and 80 ns.  So if I there ar 16 of these chips on the SIMM, I have a 4MB SIMM.  But then again, who knows?

[elendil]

I have the original a4k 030/25mhz (I think) board lying around in a box here in Denmark. I could send it to you, if you want me to. I have no idea if it can do with the chip mem or if it needs onboard fast ram as well, but I see no reason why it should.

Anyways, drop me a mail if you want it.

Sincerely,

-Kenneth Straarup.