BLIZZARD 1240/40mhz to 1260/50mhz conversion pics for all

[miggy1974]

Hi folks, I said recently that i would post pictures of my blizzard 1240 to 1260 conversion so here they are i have many pictures for all to see and they can be viewed in my photo album on the English Amiga Board by clicking on the link below.


http://eab.abime.net/album.php?albumid=40

Please feel free to contact me with amy questions or PM me

Thanks everyone for your help

Jimmy
 :-)

[koaftder]

Oh cool! Very thoughtful of you to photograph your hardware on various surfaces with no regard to ESD whatsoever. Nice pictures.

[HellCoder]

Does a Blizzard 1240 have the text Blizzard 1260 printed on the board???

[Piru]

@HellCoder

Yes

[TheGurb]

Very cool indeed. I've got a question: what kind of voltage regulator (partnr) did you use? I'd like to convert my 1240 to a 1260 but want to know which regulator I need to use...

[miggy1974]

Hi mate, i used a positive fixed 3.3 volt regulator TS1084CM-3.3 with current upto 5 amp. and has a dropout of 1.3volts if needed. It is in a TO-263 style case and is perfect for the job. I bought it from maplin electronics online, around £4.00 delivered

Depending on where you live, postage could be higher for delivery. Or you could google the regulator and maybe find it for delivery closer to you

Website is www.maplin.co.uk

Link
http://www.maplin.co.uk/module.aspx?ITAG=SPEC&ModuleNo=46054&doy=17m6#spec

Amiga, Keep the faith

[alexh]

Did you de-solder the 040 and fit the CPU socket?

I dunno the blizzard 1260 boards, but what are they like for overclocking?

A Rev6 060 is barely warm at 50MHz :-)

[miggy1974]

Hi yes i fully desoldered the old 040/40mhz cpu, this was kinda hard since the 040 was soldered on both sides of the board. I then installed and soldered in the 060 socket and fitted a revision 6 MC68060RC50 with mask 7E141J. These are the newest 060s which i have heard can run upto 100mhz with PC sdram with suitable heatsink and fan fitted. On a blizzard 1260 i think if you have 50 or 60ns simm you could probbably get 70mhz with good cooling but i dont know wether this would be stable in workbench

Amiga, Keep the faith