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#1 2014-05-22 22:32:18

mcdermd
Member
From: Corvallis, OR
Registered: 2014-05-12
Posts: 1,022
Website

Mac Plus Radius Accelerator 16 died :(

I pulled my Mac Plus with the Radius Accelerator 16 in it out of storage and the accelerator card seems to have died.

It boots fine without the accelerator but when I plug it in I get no bong, no video. I can hear the analog board making a high pitched flutter with the accelerator plugged in. It's making me think there could be a short someplace. It's not to the frame as it's behavior is the same in or out of the chassis.


Daily Drivers: 27" iMac 2.8 GHz Quad-Core i7 (Late 2009), 21.5" iMac 2.7GHz Quad-Core i5 (Late 2013), 11" Macbook Air 1.6 GHz i5 (Mid-2011)
See the restored heroes here.

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#2 2014-05-23 00:22:56

uniserver
Member
From: Sf, Mi
Registered: 2014-05-15
Posts: 956
Website

Re: Mac Plus Radius Accelerator 16 died :(

wow can you shoot a picture of it good buddy?


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#3 2014-05-23 01:50:11

mcdermd
Member
From: Corvallis, OR
Registered: 2014-05-12
Posts: 1,022
Website

Re: Mac Plus Radius Accelerator 16 died :(

There is nothing obvious. 12v from the AB is fine but not seeing any out from the accelerator board to the fan. I'll have to take the meter to it. I've already reseated everything.


Daily Drivers: 27" iMac 2.8 GHz Quad-Core i7 (Late 2009), 21.5" iMac 2.7GHz Quad-Core i5 (Late 2013), 11" Macbook Air 1.6 GHz i5 (Mid-2011)
See the restored heroes here.

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#4 2014-05-25 01:45:18

techknight
Member
Registered: 2014-05-22
Posts: 453

Re: Mac Plus Radius Accelerator 16 died :(

test the voltages coming out of the analog board with the accelerator plugged in, make sure they arnt falling.

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#5 2014-05-25 02:25:26

mcdermd
Member
From: Corvallis, OR
Registered: 2014-05-12
Posts: 1,022
Website

Re: Mac Plus Radius Accelerator 16 died :(

I tried bumping the voltage pot on the AB and it made no difference. I didn't take it much further.


Daily Drivers: 27" iMac 2.8 GHz Quad-Core i7 (Late 2009), 21.5" iMac 2.7GHz Quad-Core i5 (Late 2013), 11" Macbook Air 1.6 GHz i5 (Mid-2011)
See the restored heroes here.

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#6 2014-05-25 18:14:13

techknight
Member
Registered: 2014-05-22
Posts: 453

Re: Mac Plus Radius Accelerator 16 died :(

Well thats not what I meant. Does the voltages fall when the accelerator is in?

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