A4000T not booting... help apreiciated..

[Kristian95]

@marcfrick2112:

Did you get your machine up and running? If you did, can you tell me what you did to make it run again?

[ajlwalker]

I reckon it's broken beyond repair.  I'll take it off your hands for nothing if you like.  :-P

[marcfrick2112]

Kristian95: Well, I don't have the skills to do serious mobo-type repairs on miggies, so...

ajlwalker: give away even a broken 4000T, not on yer life  :-D

Well, as mentioned in another thread, I sent it in to Ed Jeffries in Mission, KS to be repaired. Can't remember all that was wrong, but my putting the ports module in backwards fried a chip and some caps on the mobo, according to Ed.

I am sure that some Amiga's can actually be 'beyond repair' but this guy in KS has some real skill.. He already repaired a 4000 desktop w/WarpEngine for me.

Now, I just need to make room for the monster w/ its' 3 external drives

[Kristian95]

@marcfrick2112:

Ah, that is probably exactly what is wrong with my Miggy too then (I did the mirror insert of the ports module (the right cable in the right socket put flipped the cable).
Can you please PM me contact info for Ed Jeffries?

[marcfrick2112]

Kristian 95:

OK, PM sent... Hmm, since his contact info is already on amiganews.de, I might as well post it here, I am sure others' may find it useful...

n USA Ed Jeffries with his company "Video Lab" offers the repair of Amiga 4000-motherboards an.

Contact:
Video Lab - Ed Jeffries
6909 Johnson Dr.
Lower-level
Mission, KS. 66202
Phone: 913-403-0045

 :-)

[Nlandas]

marcfrick2112 wrote:
Thanks Sprocket, I checked tonight, I'll double-check tommorow in better light....
BUT, have some more questions for you guys. I'm pretty sure my power supply is suspect, ... in fact, it's pretty much dead, ATM. OK, is the PSU in an A4000T standard? using a multimeter on the PSU just before it went, I wasn't getting +12V on the yellow wire, more like 8V (on the 4-pin molex connectors) . Is it common, or even possible, that a PSU can 'start to go bad' before it finally dies? If, by some merciful chance, this is my problem, how hard is it to replace the 4000's PSU? Many Many Thanks everyone.
Marc

I see you've gotten the A4000T fixed which is GREAT. To answer your question, AT power supplies especially can have portions start to fail before they goes fully bad.

Without good power an Amiga won't run reliably. I don't have an A4000T but there are adapters for newer power supplies to adapt them to the Amiga power connector. I don't know which fit the A4000T case. I've never been lucky enough to own an A4000T.

My A1200 runs of a fine used ATX power supply so I don't have to worry about too many accessories.
 :-D

[rkauer]

 The A4000T use a regular (underpowered) AT PSU. It's dead easy to adapt an ATX in place.

[Kin-Hell]

Hi Marc,

I only just caught up with this thread. Really unfortunate RE the Module cables. I did give someone the correct orientation back a while on this very forum. Shame you hadn`t seen it prior to fux0ring it all up. :-(

Still, at least you got her repaired & I guess the Ram upgrade does now work for you?

All the Best,

Charlie  :-)

[marcfrick2112]

Hey Charlie,

Well, I saw that thread, there's just so much crammed into that 4000T that I couldn't tell the cables were connected wrong. Ugh... And the RAM I got from you always worked, even before my failed attempt to upgrade the CS RAM. Now all is well, just need to get a few more power cords/free oulets to install the beast permanantly... 6 hard drives, sheesh!

 :-D
Marc

[Kristian95]

@marcfrick2112

Please let me know exactly what ICs were fried from this once you know

[Kin-Hell]

Marc,

Be sure you have a bloody good PSU to run six hard drives. I`d be loathe to load my 1KW PC & PC Quad SLI psu with six hard drives ontop of an CD2 DUO Quad 2.4Ghz to 3.87Ghz Overclock with SLI GX2 Graphics! :-o

Hard drives HAMMER the PSU for breakfast......

Get them off your Tower PSU into an External Box with it`s own PSU. Trust me on this one! ;-)

Best Wishes,

Charlie      

[marcfrick2112]

Kin-Hell:

No worries, mate... Since I had to pay to get the beast repaired anyway, I had Ed put 3 of the drives into ext. enclosures, all with separate PSU's and fans...
The 4000T has 'only' 3 hard drives internally... 2 system drives, one for the PAR.  :-D