Typhoon accelerator not letting WB boot up

[Kakaboy]

Originally Posted by Loedown

As I unfortunately discovered, unless you can draw enough power from all of the rails of an ATX PSU, it may not provide enough juice on the +5 +12 etc rails to power an Amiga and an Accelerator.

If you want sticks of RAM in the future, I've got about 500 of them in various sizes and configurations.

I have tried the original PSU for the 1200 and the problem remains the same . Flickering grey screen and no boot up .

[Loedown]

Originally Posted by Kakaboy

I have tried the original PSU for the 1200 and the problem remains the same . Flickering grey screen and no boot up .

There's nothing to say that the original 1200 PSU is providing any better power than the modified ATX one.

Have you recapped the 1200 or the Typhoon or both?

[rkauer]

I'll advice to replace the ATX PSU for lesser powered unit (a Compaq-a-like >100W). Check/gopher the nearest hardware landfill.

[Kakaboy]

Originally Posted by Loedown

There's nothing to say that the original 1200 PSU is providing any better power than the modified ATX one.

Have you recapped the 1200 or the Typhoon or both?

Yes thats true , I havent recapped anything it is the same way it was last time it worked .

The 1200 boots up without the ram inserted into the card and boots without the card to kickstart screen .

I will have to take it to a mates and test it on his PSU .

[ck1200]

My 1200 original psu did boot to wb with the card and 32mb of ram, but i got an uprated 350w psu just before the 64mb ram chip

chris

[Kakaboy]

Originally Posted by ck1200

My 1200 original psu did boot to wb with the card and 32mb of ram, but i got an uprated 350w psu just before the 64mb ram chip

chris

My AT PSU is 350w also and worked fine with my 64mb ram until the other day . I have 16mb ram coming so I hope Either of my PSU's will run it .

[ck1200]

hope you get it sorted, keep us updated

[Kakaboy]

Ok to update this thread , I have recieved my 16mb ram simm to replace the suspect ram on my Typhoon Accel and it has SOLVED my problem .

The 1200 now boots as normal without any yellow or flickering grey screens .

Thanks Fitsteve and all the others for your input .

Do you think that having the ram exposed underneath the 1200 because the trapdoor cant go back on is largely to blame for the ram to fail ?.
I guess it is exposed and I know ram chips can be sensitive to static electricity etc .

[fitzsteve]

Originally Posted by Kakaboy

Ok to update this thread , I have recieved my 16mb ram simm to replace the suspect ram on my Typhoon Accel and it has SOLVED my problem .

The 1200 now boots as normal without any yellow or flickering grey screens .

Thanks Fitsteve and all the others for your input .

Do you think that having the ram exposed underneath the 1200 because the trapdoor cant go back on is largely to blame for the ram to fail ?.
I guess it is exposed and I know ram chips can be sensitive to static electricity etc .

Glad you got it sorted, these chips are pretty old and I've had new Ram that has failed so I wouldn't be too concerned Ram is much cheaper then a new turbo board!

By the way I used my Typhoon without the trapdoor for 9 months or so and never had any problems at all.

Steve.

[Hewitson]

Do you think that having the ram exposed underneath the 1200 because the trapdoor cant go back on is largely to blame for the ram to fail ?.
I guess it is exposed and I know ram chips can be sensitive to static electricity etc .

Not at all mate. To try a few ram sticks until you find one which works properly with your accelerator isn't uncommon.

[Kakaboy]

Ok I had success till I got the Yellow screen again . So I took Thomas's advice and pulled the Accelerator board off and cleaned the connections . And now its running perfectly even with the original 64mb ram .

Seems like these cards and ram are tougher than I thought .

[ck1200]

Excellent glad you got it sorted out mate!

[Kakaboy]

Originally Posted by ck1200

Excellent glad you got it sorted out mate!

Believe it or not the following day after I posted saying it was ok , it started with the yellow screen again . Then when it finally booted into WB it wouldnt load any games . It would just reboot back into WB . A short time later I ended up with just the Kick screen (the Hand with Disk) .

I could load WB from the FDD and it ran fine , but it would no longer boot form the CF card .

I took it down to a mate who knows a bit more about Amiga's and he discovered the CF adapter was actually to blame .

[ck1200]

Ahhh yes was thinking cf or interface when was reading that, oh and does your one light the led's

Chris

[Kakaboy]

Originally Posted by ck1200

Ahhh yes was thinking cf or interface when was reading that, oh and does your one light the led's

Chris

No the one I had in it didnt , and I think thats were all my trouble started .

I done the wire mod and then later damaged a pad from pulling on the wire getting my cf card out all the time . But it took a while for the adapter to actually fail .

Strange thing thou my cf card did not play happilly with the new adapter so he game me another cf card and it works fine .

My issue now is getting my games off the old cf card and onto the new one ?

[fitzsteve]

Originally Posted by Kakaboy

My issue now is getting my games off the old cf card and onto the new one ?

Windows PC and WinUAE? Thats the easiest way for sure...

[Kakaboy]

Originally Posted by fitzsteve

Windows PC and WinUAE? Thats the easiest way for sure...

Yeah I have tried but unfortunately I think my CF card is fried along with the adaper . I have a funny feeling that the pins from the IDE connector that go thru the PCB have rubbed onto the sheilding and possibly caused a short . On top of the original damage I have created . It did have some insulation covering those pins but it wore thru .

So now I have to start all over again and get myself more WHD games as I have not kept a copy on my PC HDD

[fitzsteve]

Hi Kakaboy, to make your life easier set up a Classic Workbench in UAE:

http://classicwb.abime.net/

And download all the games/demo's from:

http://kg.whdownload.com/kgwhd/

Refine your workbench in UAE until you are happy and when you get your new CF + IDE Adapter partition with HDToolbox and copy all the files within UAE via DOPUS (Included with CWB) to your new CF.

Pop it in your A1200, then sit back and enjoy your classic miggy