Amiga.org
Amiga computer related discussion => Amiga Marketplace => Topic started by: stachu100 on November 11, 2011, 09:32:02 AM
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For sale Blizzard PPC upgraded by me:
1) MC68060RC50 rev6 working at 66MHz. Oscillator is socketed, so card can be downgraded to 60MHz to work with BVPPC.
2) PPC@330MHz
3) Onboard SCSI + SCSI cable suitable for tower system (see pictures)
4) New accumulator + new fan
5) 2x64 MB RAM; 128MB FAST RAM in total
Card is repaired: someone un-solder SCSI chip by un-professional way and some pads were off (see pictures) All pads were repaired by me, and now card is 100% working.
I will give 1 month DOA warranty under the condition that you have good AT (NOT ATX!!!) PSU and all electrolytic capacitors are replaced.
Due to the fact that SCSI cable is prepared for tower system, this setup is recommended, but card can work with desktop as well.
I will also add:
60MHz oscillator for BVPPC
User Manual (if I will find it, should be somewhere)
Copy of phase5 install floppy
More pictures:
https://picasaweb.google.com/110121921198567459630/BPPCRepaired
Video:
http://www.youtube.com/watch?v=99_gCH1agTY
For 10GBP extra (just to cover extra transport fees) I can add old SCSI CD-ROM and 9GB SCSI HDD, so you can have complete setup without thinking about termination/SCSI ID jumpers settings.
CD-ROM is reading genuine CD's without problems (see video), but CD-R and CD-R/W are not recognized. Please be aware.
Of course you can buy better CD-ROM later.
Any question please ask.
Offers via PM.
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Why no ATX ??
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Several people reported problems with turbo cards (not only BPPC reworked by me) when powered from cheap noname ATX bought on ebay. The parameters written on them are just good wish and they are faaaar from true.
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Which ATX brands are known to be reliable? I have a BeQuiet one...
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I would never ever power this kind of valuable hardware with a 10€ PSU... You do get decent ones for 25€ upwards tho (300W).
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You do get decent ones for 25€ upwards tho (300W).
This is exactly what you should NOT do.
Anyway Blizzard is reserved already (outside amiga.org).
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Saw some test with good and cheap supplies - the cheap ones (say under 50 €) did create some impressive clouds of smoke...(mostly they were severely overspecced)
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This is exactly what you should NOT do.
Why not?
A decent one isn't neccessarily expensive. Nor must an expensive one be decent...
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Does the Blizzard PPC SCSI interface work reliability with 66 Mhz 060?
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Does the Blizzard PPC SCSI interface work reliability with 66 Mhz 060?
Yes but better have the latest 060 CPU mask for this.
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A PSU with a +5 v / 25 A is enough for a BlizzardPPC@330 + BVision ??
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I would never ever power this kind of valuable hardware with a 10€ PSU
Indeed. I bought a new 460 watt Cooler Master ATX psu for 50 Euros for my A1200 (costs more then the A1200 mobo :D).
Anyway, cheap PSUs are probably a good way to ask for trouble. Buy new, and don't be a cheap skate :)
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A PSU with a +5 v / 25 A is enough for a BlizzardPPC@330 + BVision ??
It's even too much. 5V/10A for desktop is fine. The most important is to have at least 4,85V on BVision. But why do you asking this? You know that as well as I do. ;-)
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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...
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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.
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Issue solved : http://cosmosamiga.blogspot.com/2011/12/bvision-coquine.html
(Before, 4.48v !!)
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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! :-)
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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.
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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.
8) 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: