Bllizard 1240 1260 differences

[ZolwT]

Hi
I have one question..what is the difference between Bllizard 1240 and 1260 except CPU and 5 - 3,3v voltage regulator? Is there any 68k selector like in Bllizz PPC or something like that?

PS.I jave blliz 1260 with dead 060, I will put 040, replace osciltar, remowe 3,3v regulator,but I don't know if its enough..

[LaserBack]

how do you know that the 060 on your card is dead?
it can be another thing....it can be the connector

on the other way...you can install a 040 there but you must know what are you doing...there are 3 types of 040 cpu...25mhz,33 and 40....and each one of them needs a diferent crystal oscilator and of course you must remove the 3.3 regulator cause the 040 works at 5 v

and about your question :all you want to do is posible....blizzard and apollo 1240/1260 boards can be upgraded or degraded to a diferent cpu but it's not simple

on the other way if you haven't a tower you can't put a 040 on the normal A1200 trapdoor...it needs a fan and the 040 not works fine there jailed...it suffer very much by excesive hot


bye

[amigakit]

Theres a solder jumper to select between 5v and 3.3v above the regulator.

Please also be aware, that the 040 has different number of pins to the 060

[zipper]

Here is the procedure to update - but it's french :roll:

http://obligement.free.fr/articles/blizzard040060.php  

[ZolwT]

Soldering etc is easy, I know how to do this and I have experience. (I did things like that), but I did'nt know abut selectors:) Is there some second selector? I will change voltage selector, but may be there is some other selector too?? (CybeStorm has 3 I think)..thanks!!

[alexh]

Why not just replace the 060? You can get an early XC68060RC50 for about €30 off ebay.

If you just want the card to work... you could always get an XC68EC060RC66 for about €20 again off ebay.

OR

You could go the whole hog and get a  new Rev6 MC68060RC50 with E41J Mask (full MMU & FPU, works upto 100MHz) for about €80



http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=250112625014

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=23011726921

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=230123638587

[amigakit]

The only other selectors are by the oscillator to determine the frequency

[ZolwT]

I have 040@33 at home so I can do that today/tomorrow:) Maybe latter I buy EC060 and have fun with this:)