Apollo memory

JuvUK · 31 January 2009, 11:42

Hi all,
can anyone recommend a guarenteed working 72 pin 32mb 60ns simm that will work flawlessly with an Apollo 1260? (you know how picky these cards are about thier memory)

thanks, JuvUK

alexh · 31 January 2009, 11:49

If you seek out FPM SIMMS (rather than EDO) you'd probably have better luck?

Buying from someone like http://AmigaKit.co.uk and paying a premium for their support might be an idea...?

P.S. I dont remember this card being picky about SIMMS

JuvUK · 31 January 2009, 11:55

Quote:

Originally Posted by alexh

If you seek out FPM SIMMS (rather than EDO) you'd probably have better luck?

Buying from someone like http://AmigaKit.co.uk and paying a premium for their support might be an idea...?

P.S. I dont remember this card being picky about SIMMS

thanks, Alexh.
I had a look in the amigakit store but they don't seem to have any 32mb simms

. i have also had a look on fleebay, and there are a few listed (please excuse my ignorance) what is the difference between FPM and EDO? why are they better?

seriously the apollos are very picky about memory, i have 3 x edo 32mb simms, they have had varying stability,1st one was ok just the odd freeze/crash, 2nd was terrible, if it would boot at all it'd crash within seconds, and the current one which is the best so far but still the odd random guru.

thanks, JuvUK

DoogUK · 31 January 2009, 15:16

I have lots that work well in my apollo, you're welcome to one if you like.

JuvUK · 31 January 2009, 15:34

Quote:

Originally Posted by DoogUK

I have lots that work well in my apollo, you're welcome to one if you like.

hi DoogUK,
thanks for the very generous offer, but i'm now thinking it could be timing issues (its a 2B board with budgie revision 0) or maybe the caps as the problem reduces after about 10-15 mins of the amiga being turned on, hmmmmm decisions, decisions.......

cheers, JuvUK

DoogUK · 31 January 2009, 15:41

That does sound like the timing issue to me as well.

Chain · 31 January 2009, 16:31

i will recommend to get a 50ns simm. i have only 1240 card, but with all 60ns simms which ive tested it was unstable. witj 50ns simm it runs for days without any error, or selfcrash etc.

rkauer · 31 January 2009, 19:06

Quote:

Originally Posted by DoogUK

That does sound like the timing issue to me as well.

Doog, mate: I'm pretty sure the problem is capacitors-related, as our friend as mentioned.

Damion · 31 January 2009, 21:00

Quote:

Originally Posted by JuvUK

Hi all,
can anyone recommend a guarenteed working 72 pin 32mb 60ns simm that will work flawlessly with an Apollo 1260? (you know how picky these cards are about thier memory)

thanks, JuvUK

Old Micron SIMMs pop up regularly on ebay, sometimes NOS. They are usually 60ns but work flawlessly with the Apollo 1260. (Both EDO and FPM variants work OK here... I could post part #s if necessary.) In my experience the board isn't too picky with SIMMs... in general FPM may be more compatible, but I'm no expert.

Regardless, I would *definitely* change your motherboard caps (especially if it's an older C= board), timing fixes might also be needed.

DoogUK · 31 January 2009, 21:03

I would have thought FPM simms would be less compatible due to the slower speeds.....70ns as apposed to 60ns of the edo?

zipper · 01 February 2009, 18:07

There are 60ns FPMs, too - some in my Blizz 2060, mixed with EDOs.

DoogUK · 01 February 2009, 21:12

Bizz 2060 <drool>

31 January 2009, 11:42	#1
JuvUK Registered User Join Date: Oct 2008 Location: Cheltenham/UK Age: 52 Posts: 312	Apollo memory Hi all, can anyone recommend a guarenteed working 72 pin 32mb 60ns simm that will work flawlessly with an Apollo 1260? (you know how picky these cards are about thier memory) thanks, JuvUK

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31 January 2009, 11:49	#2
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,330	If you seek out FPM SIMMS (rather than EDO) you'd probably have better luck? Buying from someone like http://AmigaKit.co.uk and paying a premium for their support might be an idea...? P.S. I dont remember this card being picky about SIMMS

31 January 2009, 15:16	#4
DoogUK Doogster Join Date: Dec 2007 Location: Dorset Posts: 1,069	I have lots that work well in my apollo, you're welcome to one if you like.

31 January 2009, 15:41	#6
DoogUK Doogster Join Date: Dec 2007 Location: Dorset Posts: 1,069	That does sound like the timing issue to me as well.

31 January 2009, 16:31	#7
Chain A-Collector, repairments Join Date: Jul 2001 Location: Czech Rep. Age: 50 Posts: 1,536	i will recommend to get a 50ns simm. i have only 1240 card, but with all 60ns simms which ive tested it was unstable. witj 50ns simm it runs for days without any error, or selfcrash etc.

31 January 2009, 21:03	#10
DoogUK Doogster Join Date: Dec 2007 Location: Dorset Posts: 1,069	I would have thought FPM simms would be less compatible due to the slower speeds.....70ns as apposed to 60ns of the edo?

01 February 2009, 18:07	#11
zipper Registered User Join Date: Mar 2004 Location: finland Posts: 1,837	There are 60ns FPMs, too - some in my Blizz 2060, mixed with EDOs.

01 February 2009, 21:12	#12
DoogUK Doogster Join Date: Dec 2007 Location: Dorset Posts: 1,069	Bizz 2060 <drool>

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