Buying brand new RAM for the Amiga 1222: Options/brands to consider?

Since it appears that the Amiga 1222 has been released (can't find any announcements / pressreleases / product pages on A-EON.com, though - it's like the computer doesn't exist) now would be a good time to consider buying a motherboard. According to the
"A1222 Guide: Initial Build and Setup"-guide, it seems as if there are a few pre-requisits to have in mind:

* AmigaOS can currently "only" address 2 GB of RAM

* The system expects "standard 1.5V DDR3 SO-DIMM" chips

* The hardware has only been tested with "unbuffered, non-ECC SO-DIMMs running at 800MHz"

* With this in mind, "2GB Kingston 1333MHz non-ECC SO-DIMM" chips "should work fine", according to the guide

* The official (?) Amiga 1222 manual says that the computer has only been tested with two (!) RAM chips, both from Kingston - the KVR800D3S8S6/2G chip and the KVR13S9S6/2 chip. Both of these chips seem to be out of production.

As a lot of people who have assembled their own systems can vouch for, using the wrong kind of RAM is like asking for trouble. Non-hardware compliant RAM usually result in seemingly random lockups, crashes and other unexpected behaviors. Since none of the recommended Kingston chipsets seem to be available any longer, and since A-EON haven't taken the time to test any other RAM circuits that are actually being manufactured in 2024, what other new options/brands are there to consider?

(I do realize that used RAM can probably be bought on various auction sites, but this is not what I have in mind; I'd like a brand new Amiga, and starting my OS 4 journey by buying used parts isn't what I have in mind)

@FirstNinja

Quote:

Since I bought my system puhhhh I'm not sure about 3-4 months ago maybe I can give you some information about it.

I ordered the computer as a complete system as it is offered by A-Eon on http://www.a1222plus.com.

To answer the memory question, I replaced the original DDR3 memory with a “Samsung 8GB PC3L-12800S DDR3 1600 MHz 1.35 V SODIMM RAM” and have not noticed any difference to the installed memory. You can still find the memory as new on Amazon and co.

If you want to know anything else please ask and I will try to share my experiences with you.

@FirstNinja

Some info here:

https://www.amigans.net/modules/newbb/viewtopic.php?post_id=148679

I also done some testing and results with different sodimms on A1222.

-dooz

Maijestro and dooz,

thank you for your inputs and URLs (granted, I didn't realize someone had already beat me to it).

For the record, I've ordered a G.Skill SQ Series DDR3 8GB 1333MHz CL9 non-ECC SO-DIMM 204-PIN chip (SKU: "F3-10666CL9S-8GBSQ"). I'll post an update in the other thread once I know if it's working as intended or not.

@FirstNinja

Hi,

Today I tested every DDR3 sodimm I have along with results for stream-5.10-AOS SPE version benchmark:

Goldenmars_DDR3_1333_2GB_GBM20028SOX829-1333
Function Best Rate MB/s Avg time Min time Max time
Copy: 849.6 0.191872 0.188317 0.197496

Kingmax_DDR3_1333_4GB_FSFG45F_D8KQ9
Function Best Rate MB/s Avg time Min time Max time
Copy: 779.8 0.210653 0.205181 0.218193

Kingmax_DDR3_1333_8GB_FSFG45F_D8WP9
Function Best Rate MB/s Avg time Min time Max time
Copy: 768.5 0.213300 0.208201 0.220564

Kingston_DDR3_1066_1GB_KVR1066D3S7_1G_15V
Function Best Rate MB/s Avg time Min time Max time
Copy: 858.1 0.191270 0.186469 0.195570

Transcend_DDR3_1333_2GB_TS256MSK64V3N
Function Best Rate MB/s Avg time Min time Max time
Copy: 802.2 0.204801 0.199456 0.213972

Transcend_DDR3_1333_4GB
Function Best Rate MB/s Avg time Min time Max time
Copy: 809.5 0.204381 0.197663 0.214569

All those working OK on A1222. Type is usual DDR3 5V

-Dooz

@FirstNinja

This one by the specification should work OK.

We should make a database of working SODIMMs... new and used that we tested. So far I didnt really find any that doesnt work. The actual speed is different for each model.

-Dooz

Quote:
Fully agreed.

@Eliyahu - are you reading this? Perhaps the A1222 Guide would be a good place to publish a list of compatible RAM chips along with speed tests?

@FirstNinja
I am using Kingston 8GB DDRL KF318LS11IB/8
Here is discussion about some modules with speed.

With AmigaOS 4.1 FE you can use only 2GB RAM for running system and applications.
If you have more physical RAM installed, some programs like RAVE can use it for its data - Thanks for the memory.
You also utilize more memory with linux.

@Maijestro

“Samsung 8GB PC3L-12800S DDR3 1600 MHz 1.35 V SODIMM RAM” is maybe dual voltage. Then it can work with 1.35V and 1.5V.

I have two Crucial 4GB DDR3L-1600 SODIMM 1.35V CL (CT51264BF160BJ.M8FN)but it is rated only as 1.35V. I didnt tested that one in A1222. Probably nothing will happen but A1222 is kind of unique piece of hardware that cannot be bought at any corner - so I am kind of carefull. Mine if from year 2016 or something (beta testers version).

There is no data in documentation that A1222 can handle 1.35V only SODIMM. I investigated further on P1022 CPU QorIQ Integrated Processor Hardware Specifications Rev.0. Memory controller is integrated in P1022 CPU. Only 1.8 V (DDR2) and 1.5V (DDR3) is mentioned.

There are also dual voltage DDR3(L) SODIMMs still on sale. Nothing wrong also with used ones from old laptops. RAM is not really something that fail very often. Before testing on A1222 I usually put it on my old PC laptop to see if its ok

-Dooz