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hardware Classic   hardware Classic : Preorder for the new 4MB PCMCIA SRAM cards
   posted by strim on 25-May-2014 20:34:45 (8146 reads)
I'm proud to announce preorder for the new 4MB PCMCIA SRAM cards for Amiga 600/1200.

The product has following features:
- Adds 4MB of Fast RAM to Amiga 600 or Amiga 1200
- Accelerates unexpanded Amiga 1200 to 1.67 MIPS (according to SysInfo)

For more features and info, click the "Read More" button ---------->


- Built using modern, high performance 55ns SRAM ICs
- Very simple installation - just insert the card into PCMCIA slot on the left side of Amiga
- Compatible with all PCMCIA friendly accelerators and memory expansions
- Open source design
- Made by Amigans for Amigans!

The card can now be preordered at RetroAmi shop.

The price is around 50 EUR, cards will be delivered to users in late August 2014.
    

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· More about hardware Classic
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PosterThread
KimmoK 
Re: Preorder for the new 4MB PCMCIA SRAM cards
Posted on 26-May-2014 6:40:09
#1 ]
Elite Member
Joined: 14-Mar-2003
Posts: 5188
From: Ylikiiminki, Finland

I think this is the first time I see PCMCIA RAM to speed up a Amiga.
Benchmarks would be interesting.

(IIRC, PCMCIA bus is only 16bit...)


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// For freedom, for honor, for AMIGA
//
// Thing that I should find more time for: CC64 - 64bit Community Computer?

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strim 
Re: Preorder for the new 4MB PCMCIA SRAM cards
Posted on 26-May-2014 7:14:36
#2 ]
Member
Joined: 28-Oct-2011
Posts: 59
From: Warsaw, Poland

Screenshot from SysInfo (bare A1200, just our prototype SRAM plugged in):

http://c0ff33.net/drop/pcmcia-sram-sysinfo2.jpg

When I have more time I'll do some more benchmarks.

Also, not very surprisingly even 16-bit PCMCIA SRAM can be faster than 32-bit Chip RAM, where Amiga chipset is the bottleneck. Of course that is only true is the card is fast enough and properly configured during boot up (appropriate Gayle registers are set according to speed settings in card's CIS).

Last edited by strim on 26-May-2014 at 07:16 AM.

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Daedalus 
Re: Preorder for the new 4MB PCMCIA SRAM cards
Posted on 26-May-2014 13:07:46
#3 ]
Super Member
Joined: 14-Jul-2003
Posts: 1678
From: Glasgow - UK, Irish born

It's slower than true 32-bit fast RAM, but still speeds things up over a machine with just chip RAM available, as in those machines the CPU sits there doing nothing a lot of the time.

Very interesting project! Would also be a good thing to use as a bootable drive - I have an old one I used for that - had a custom setup that I could use to boot a couple of different machines with for testing purposes.


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strim 
Re: Preorder for the new 4MB PCMCIA SRAM cards
Posted on 26-May-2014 13:43:34
#4 ]
Member
Joined: 28-Oct-2011
Posts: 59
From: Warsaw, Poland

Keep in mind this card is a very low cost design and does not have a battery, so anything you put in SRAM will vanish once you turn off Amiga.

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Hypex 
Re: Preorder for the new 4MB PCMCIA SRAM cards
Posted on 26-May-2014 13:53:38
#5 ]
Elite Member
Joined: 6-May-2007
Posts: 9728
From: Greensborough, Australia

CPU speed seems a bit slow. What does SysInfo return for a bare A1200? Didn't know it couldn't compute speed to the clock.

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Daedalus 
Re: Preorder for the new 4MB PCMCIA SRAM cards
Posted on 26-May-2014 14:23:41
#6 ]
Super Member
Joined: 14-Jul-2003
Posts: 1678
From: Glasgow - UK, Irish born

Aww, that's a pity... Maybe there's a market for a more expensive version with a battery?


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strim 
Re: Preorder for the new 4MB PCMCIA SRAM cards
Posted on 26-May-2014 14:41:45
#7 ]
Member
Joined: 28-Oct-2011
Posts: 59
From: Warsaw, Poland

Quote:
CPU speed seems a bit slow. What does SysInfo return for a bare A1200?


1.37, so 1.67 is definitely faster...

Quote:
Aww, that's a pity... Maybe there's a market for a more expensive version with a battery?


Maybe, but we couldn't afford two different versions and we wanted to keep the price as low as possible.

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pavlor 
Re: Preorder for the new 4MB PCMCIA SRAM cards
Posted on 26-May-2014 15:20:22
#8 ]
Elite Member
Joined: 10-Jul-2005
Posts: 9081
From: Unknown

Nice!

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noXLar 
Re: Preorder for the new 4MB PCMCIA SRAM cards
Posted on 26-May-2014 16:04:00
#9 ]
Cult Member
Joined: 8-May-2003
Posts: 652
From: Norway

is it possible to have your pcmcia ram and at the same til using an 030 card with 128mb. what would happen?

and why only 4mb ram? is it at maximum

Last edited by noXLar on 26-May-2014 at 04:05 PM.


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2xAmiga 1230 33mhz 128MB Indivision ACA 1200 MK2 USB PCMCIA WIFI 60GB&DVD-ROM OS 3.9

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strim 
Re: Preorder for the new 4MB PCMCIA SRAM cards
Posted on 26-May-2014 16:08:55
#10 ]
Member
Joined: 28-Oct-2011
Posts: 59
From: Warsaw, Poland

Quote:
is it possible to have your pcmcia ram and at the same til using an 030 card with 128mb. what would happen?


You'd have 132MB Fast RAM. If you really need that .

Quote:
and why only 4mb ram? is it at maximum


It's the maximum amount Gayle chip can handle.

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A1200 
Re: Preorder for the new 4MB PCMCIA SRAM cards
Posted on 26-May-2014 20:58:40
#11 ]
Elite Member
Joined: 5-May-2003
Posts: 2976
From: Westhall, UK

I get a slightly faster benchmark result using my 2MB PCMCIA SRAM card on the A600.


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A1200 
Re: Preorder for the new 4MB PCMCIA SRAM cards
Posted on 26-May-2014 21:03:32
#12 ]
Elite Member
Joined: 5-May-2003
Posts: 2976
From: Westhall, UK

Just visited the website. Does the finished product have an enclosure or is it a bare PCB?


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strim 
Re: Preorder for the new 4MB PCMCIA SRAM cards
Posted on 26-May-2014 21:15:08
#13 ]
Member
Joined: 28-Oct-2011
Posts: 59
From: Warsaw, Poland

Quote:
I get a slightly faster benchmark result using my 2MB PCMCIA SRAM card on the A600.


I've got a bit better result recently too on my A1200 (1.92 MIPS), but we don't want to advertise the card as being this fast, before all tests are completed and it is proven that the card works 100% stable at this speed.

Quote:
Just visited the website. Does the finished product have an enclosure or is it a bare PCB?


We sell only bare card, as we wanted to keep the price as low as possible. The card is much shorter than normal PCMCIA card, so does not stick out of Amiga that much. Anyway, 3rd party vendor contacted us with the idea of making a case for it. So the case might be available in the future.

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KimmoK 
Re: Preorder for the new 4MB PCMCIA SRAM cards
Posted on 27-May-2014 7:19:29
#14 ]
Elite Member
Joined: 14-Mar-2003
Posts: 5188
From: Ylikiiminki, Finland

Sidestepping perhaps... but what is the cheapest 32bit RAM expansion for A1200?

(IIRC, 32bit fast RAM almost doubles A1200 computing speed, especially when chip RAM is saturated by AGA graphics operations)

Last edited by KimmoK on 27-May-2014 at 07:23 AM.


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// For freedom, for honor, for AMIGA
//
// Thing that I should find more time for: CC64 - 64bit Community Computer?

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strim 
Re: Preorder for the new 4MB PCMCIA SRAM cards
Posted on 27-May-2014 8:08:32
#15 ]
Member
Joined: 28-Oct-2011
Posts: 59
From: Warsaw, Poland

If you are asking about currently produced cards, then ACA1220, which is almost double the price of our PCMCIA card.

Last edited by strim on 27-May-2014 at 08:10 AM.
Last edited by strim on 27-May-2014 at 08:08 AM.

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strim 
Re: Preorder for the new 4MB PCMCIA SRAM cards
Posted on 1-Jun-2014 13:59:58
#16 ]
Member
Joined: 28-Oct-2011
Posts: 59
From: Warsaw, Poland

User's Manual (preliminary version)

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