FS: Blizzard PPC 060@66MHz/PPC@330MHz with SCSI + 128MB RAM

[Framiga]

My 420W ATX PSU (5v@30A) is good with 603e@360 & 060@50, but when I put a new 64 Mhz crystal for the 060, the BVision is out...

When I try 603@250 and 060@64, I get a working BVision...

I'll purchase a new PSU with a 5v@40A, hope it solve this issue...

it can't be this the issue (but if you got a ground loop between the 5V power source and the BVision or a very flaky PSU).

Check (as stachu100 suggested) to have at least 4.85 v onto the BVision.

[Cosmos Amiga]

Issue solved : http://cosmosamiga.blogspot.com/2011/12/bvision-coquine.html

(Before, 4.48v !!)

[stachu100]

Issue solved : http://cosmosamiga.blogspot.com/2011/12/bvision-coquine.html

(Before, 4.48v !!)

See!!
No surprise that BVision was not working. ;-)
I have even better idea to be sure that BPPC+BVPPC will work stable. More info within 2-3weeks. Stay tuned! :-)

[Retrofan]

See!!
No surprise that BVision was not working. ;-)
I have even better idea to be sure that BPPC+BVPPC will work stable. More info within 2-3weeks. Stay tuned! :-)

 
You know I coudn't run my Bvision but with an Amigakit PSU (more watts, shorter cable). With a 150wats one, giving 5.1volts in the PSU the Bvision coudn't boot I think that just caused by the lenght of the cable (original Amiga Psu lenght -too long-).
 
So I'm interested in your solution too.

[stachu100]

You know I coudn't run my Bvision but with an Amigakit PSU (more watts, shorter cable). With a 150wats one, giving 5.1volts in the PSU the Bvision coudn't boot I think that just caused by the lenght of the cable (original Amiga Psu lenght -too long-).
 
So I'm interested in your solution too.

Solution is very simple:
To add voltmeter!
I strongly believe in simplicity. :afro:
By doing so even two-left-handed person with zero skill in electronic can check if Amiga with BPPC (or with BPPC+BVPPC) will have enough power.

What is also very interesting that after simply mod this voltmeter can be permanently installed inside A1200 trapdoor so voltage can be checked by simply opening the trapdoor. Or this voltmeter can be installed inside modified A1200 case to observe voltage all the time.

http://youtu.be/XX3HZ5iruAk

In the video above you can see this idea working on BPPC, but on BVPPC it's very similar except that extra cable from PSU to FDD power connector is A MUST!
It's written in BVPPC instruction manual:
http://amiga.resource.cx/manual/BVisionPPC.pdf
But who is reading manuals nowadays? :biglaugh:


Procedure to be sure that +5V is ok in your system:
1) Install all necessary libraries for 060 on your system partition first.
2) Install BPPC.
3) Disconnect fan plug from BPPC.
4) Connect 5V voltmeter to BPPC fan connector. It can be connected in one way only.
5) Switch-on your Amiga.
6) Observe voltage readings on voltmeter. IT CANNOT TAKE LONGER THAN 30 SECONDS!!!!!! to avoid PPC CPU overheating.
7) Once measurement is done, switch-off your system.
Disconnect 5V voltmeter.
9) Connect fan plug to BPPC fan connector.
10) That's all!
:-)
Readings on the display should be above 4,85V to be sure that system will work stable.
Ideal case is to have 4,95V-5,05V.

If voltage is below 4,85V - your system might not be stable.
Please replace your PSU or please add two wires +5V and GND form PSU to power cable going to floppy drive.

Voltage can be measured on BVPPC directly by soldering extra connector for voltmeter on graphic card.

This voltage is a general propose 0-20V/0-200V voltmeter bought on ebay and adopted to work on +5V ONLY.

In the video above BPPC is working with extra +5V and GND line going form PSU to FDD connector and the voltage is 4,94V.
Once two extra lines form PSU to FDD connector is disconnected the readings are 4,76V.
200mV less!!!
So really extra wires from PSU to FDD floppy connector is great mod!
Of course assuming that PSU is good. :laughing: