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23 April 2020, 19:26
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#1 |
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Registered User
Join Date: Jan 2018
Location: Greece
Posts: 143
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Blizzard 1230 IV
Recently I’ve bought from amibay 64mb edo simm(as you can see from picture) for my A1200 and have started the problems.The machine does not boot even from disk...
I’ve switched back with another 8mb module and all worked fine. Is it possible the 64mb to be faulty or what? |
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23 April 2020, 19:34
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#2 | |
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Banned
Join Date: Nov 2019
Location: Uranus
Posts: 193
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Quote:
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23 April 2020, 19:37
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#3 | |
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Registered User
Join Date: Jan 2018
Location: Greece
Posts: 143
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Quote:
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23 April 2020, 23:59
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#4 |
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Registered User
Join Date: Jan 2020
Location: oslo/norway
Posts: 1,607
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Take it off. Even if 70ns will work you will have around 10% slower computer. I can not live with 70ns on my Blizz MKIV
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24 April 2020, 12:52
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#5 | |
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0ld0r Git
Join Date: Mar 2009
Location: Cornwall, UK
Posts: 1,570
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Quote:
60ns/70ns Jumper setting may help. Lower Latencies are always better. Is that a Single or double sided SIMM? Guessing Double with chips saying 8 x 8.... |
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24 April 2020, 17:49
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#6 |
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Registered User
Join Date: Jan 2018
Location: Greece
Posts: 143
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I have post pics from the 64mb module(which is double sided) and two pics from inside the card.
The module inside the card is the one that work-8mb Last edited by toples50; 24 April 2020 at 19:03. |
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25 April 2020, 10:44
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#7 |
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0ld0r Git
Join Date: Mar 2009
Location: Cornwall, UK
Posts: 1,570
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All looks ok....
Have you tried the 64Mb SIMM with the Jumper "Off" to set 70ns? I see you have the Jumper "On" with your 8Mb SIMM in the pic above. |
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25 April 2020, 10:54
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#8 | |
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Banned
Join Date: Nov 2019
Location: Uranus
Posts: 193
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Quote:
check the manual of your turboboard for more info about how to change them |
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25 April 2020, 21:15
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#9 |
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Registered User
Join Date: Jan 2018
Location: Greece
Posts: 143
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The chip is 70ns because I told the seller to send me 60ns.
With 8mb the card flies so I think it’s 60ns |
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26 April 2020, 00:09
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#10 |
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Registered User
Join Date: Apr 2009
Location: N/A
Posts: 962
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The manual for the Blizzard 1230 IV can be found here:
http://phase5.a1k.org/files/1230iv.pdf Information on the 60/70ns jumper can be found on page 4 (German) and page IV (English). |
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26 April 2020, 09:43
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#11 |
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Registered User
Join Date: Jan 2018
Location: Greece
Posts: 143
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Thanks but does not work the link.
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26 April 2020, 09:59
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#12 |
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Registered User
Join Date: Dec 2014
Location: germany
Posts: 439
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There's also a manual on the BigBookOfAmigaHardware-Page for the 1230-IV:
https://www.bigbookofamigahardware.c...t.aspx?id=1707 Just a warning, it gives a https certificate error, because the certificate is expired. So use on your own risk. |
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26 April 2020, 10:39
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#13 | |
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Registered User
Join Date: Apr 2009
Location: N/A
Posts: 962
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Quote:
Try this one. You have to select the model (third entry in table). http://phase5.a1k.org/manuals.html |
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26 April 2020, 12:28
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#14 | |
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Registered User
Join Date: Nov 2010
Location: Sweden
Posts: 528
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Quote:
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26 April 2020, 12:39
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#15 |
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Registered User
Join Date: Jan 2020
Location: oslo/norway
Posts: 1,607
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I have a 32MB sim that is 60ns but only works with 70ns wity my Blizz IV. I'm not using that sim. Blizzard cards can be little picky so the seller that sold you the sim might not have done anything wrong. It is just nothing you can do about it.
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26 April 2020, 15:56
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#16 |
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0ld0r Git
Join Date: Mar 2009
Location: Cornwall, UK
Posts: 1,570
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Not all 72 Pin SIMM's are always compatible. - EDO packages are normally 36Bit, 4 bits for Parity.
72 Pin SIMM's of the PageMode variety are always a safer bet & are normally 32Bit. |
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24 May 2020, 08:25
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#17 |
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Registered User
Join Date: Jan 2018
Location: Greece
Posts: 143
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Seller send me another one module but I have the same symptoms.When jumpers are on 60ns Amiga does not boot.When switch back at 70ns the module behaves normally.
I have an older one 8mb 60ns which work fine so I don't think that the problem is in the card. |
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24 May 2020, 11:05
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#18 |
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0ld0r Git
Join Date: Mar 2009
Location: Cornwall, UK
Posts: 1,570
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Definitely something to do with those flavour of Modules then.
How unfortunate for you. 
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24 May 2020, 21:41
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#19 |
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Registered User
Join Date: Jul 2017
Location: San Jose
Posts: 652
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I had trouble with Blizzard 1230IV being picky about memory, too.
I had success with modules from this seller: https://www.ebay.com/itm/184212196201 I am in no way associated with the seller. |
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24 May 2020, 22:46
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#20 |
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Registered User
Join Date: Apr 2010
Location: Italy
Posts: 1,136
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i have repaired a blizzard iv and sold some moths ago, the card have a problem with fastram, solved add a wire from cpu and simm socket, now work fine with 128mb
please boot form df0: without s-s then write loadwb next type endcli or type avail |
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