{"id":393,"date":"2016-04-10T09:12:50","date_gmt":"2016-04-10T09:12:50","guid":{"rendered":"http:\/\/wordpress.hertell.nu\/?p=393"},"modified":"2016-05-03T10:36:28","modified_gmt":"2016-05-03T10:36:28","slug":"upgrading-the-blizzard-1240-to-blizzard-1260","status":"publish","type":"post","link":"https:\/\/wordpress.hertell.nu\/?p=393","title":{"rendered":"Upgrading the Blizzard 1240 to Blizzard 1260"},"content":{"rendered":"

In my Series of upgrading to 060 cpu. It is time for the Blizzard 1240.<\/p>\n

I got this to have in my “Demo-party” Amiga.<\/span><\/p>\n

 <\/p>\n

\"BL-A1240\"<\/a><\/p>\n

One Blizzard 1240. .(YES it has the 1260 print on the back. \u00a0all 040 have that)<\/p>\n

So first, we need to remove the CPU. and this is the hard part. you need to have a Desolderingstation, like my ZD-915<\/p>\n

\"Desolderingstation\"<\/a><\/p>\n

 <\/p>\n

So remove the CPU gently.<\/p>\n

\"BL-Nocpu\"<\/a>\"BL-Nocpu2\"<\/a>\"BL-Nocpu3\"<\/a><\/p>\n

ALL pins needs to be open, the 040 uses less pins then the 060.<\/span><\/p>\n

Now solder in the 060. there was 4 small distances on the 040. I move them to the 060 aswell so we have the same spacing between board and cpu. I would recomend you to try to get hold of a Rev6 060 (marked\u00a071E41J) \u00a0and no LC or EC model, try to use the RC one with full FPU etc. (don’t know if EC or LC even work on the Blizzard)<\/p>\n

Now with the 060 in place, we must change voltage to the cpu. as the 040 uses 5V and the 060 uses 3.3V.<\/p>\n

Look at the part close to the battery:<\/p>\n

\"BL-Power040Setting\"<\/a><\/p>\n

(bad picture.. my phone as bad at closeups)<\/p>\n

At the small circle you see a small wire soldered between pin 1 and 2. This must be moved to 2-3 instead:<\/p>\n

\"BL-Power060Setting\"<\/a><\/p>\n

And you also need to solder in a Voltageregulator (LT1085CM-3.3 voltage regulator 3.3Volts)<\/p>\n

\"csmk2vregulator\"<\/a><\/p>\n

and solder it to the 3 pads close the the wire-jumper. You also need to change the oscillator to one that fits your needs, above 60MHz and you might have issues with SCSI-Addon. \u00a072-75 is kind of maximum, \u00a0I put in a 66MHz one.<\/p>\n

Now you have an Blizzard A1260:<\/p>\n

\"BL-A1260\"<\/a><\/p>\n

 <\/p>\n

Now we need to move a small resistor from its 040 postition:<\/p>\n

\"BL-040Setting\"<\/a><\/p>\n

and instead put it in the 060 position:<\/p>\n

\"BL-060Setting\"<\/a><\/p>\n

 <\/p>\n

But that SIMM socket is annoying as you cannot close the trapdoor.<\/p>\n

So we remove it:<\/p>\n

\"BL-NoSIMM\"<\/a><\/p>\n

And solder in a socket like the 1260 instead. \u00a0I actually let the SIMM be in the socket while doing it, knowing it will fit.<\/p>\n

\"BL-A1260Done\"<\/a><\/p>\n

So just stick in the SIMM and we are ready to go:<\/p>\n

\"BL-A126064MB\"<\/a><\/p>\n

 <\/p>\n

And well. it also boots:<\/p>\n

\"BL-Result\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

In my Series of upgrading to 060 cpu. It is time for the Blizzard 1240. I got this to have…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-393","post","type-post","status-publish","format-standard","hentry","category-amiga"],"_links":{"self":[{"href":"https:\/\/wordpress.hertell.nu\/index.php?rest_route=\/wp\/v2\/posts\/393","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.hertell.nu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wordpress.hertell.nu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wordpress.hertell.nu\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wordpress.hertell.nu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=393"}],"version-history":[{"count":4,"href":"https:\/\/wordpress.hertell.nu\/index.php?rest_route=\/wp\/v2\/posts\/393\/revisions"}],"predecessor-version":[{"id":415,"href":"https:\/\/wordpress.hertell.nu\/index.php?rest_route=\/wp\/v2\/posts\/393\/revisions\/415"}],"wp:attachment":[{"href":"https:\/\/wordpress.hertell.nu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=393"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wordpress.hertell.nu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=393"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wordpress.hertell.nu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=393"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}