Upgrading MSX1 to MSX2

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By CX5Mer

Champion (322)

Аватар пользователя CX5Mer

24-10-2014, 15:28

I just thought I should check on here first how difficult it would be to upgrade an MSX1 computer to MSX2 specs. AFAIK it is possible, but I may not be able to get the parts or to do what's necessary to perform the upgrade. I heard there was a cartridge upgrade for MSX2, but probably very rare. I know that the VRAM would need to be upgraded from 16K to at least 64K, or better still 128K. The video chip, MSX1 BASIC and BIOS or EXT ROMs would also have to be replaced. I'm not sure if any of this would involve soldering. I read in this forum that there was a video chip upgrade which wasn't the same as having the MSX2 graphics modes. At the moment I don't own an MSX computer at all, so I'm just considering the best or cheapest way of getting my hands on an MSX2 computer. I have now got openMSX running on a desktop PC and a Raspberry Pi.

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By supmsx

Master (157)

Аватар пользователя supmsx

24-10-2014, 18:00

It was done by a french MSX fan Fabf with a yashica here

By Fabf

Master (243)

Аватар пользователя Fabf

24-10-2014, 20:47

Yes I did it Big smile
Lot of people also did it spécialy in Finland with SVI.
The last I know is french too.
Power CX5M

By Manuel

Ascended (16860)

Аватар пользователя Manuel

24-10-2014, 22:07

On the other hand, a common MSX2 shouldn't be very expensive.
(I think a common unexpanded one should cost around 25 euros or so, in the Netherlands.)

By CX5Mer

Champion (322)

Аватар пользователя CX5Mer

25-10-2014, 07:53

Thanks supmsx and Fabf! The topics you linked to about upgrading a Yashica, as well as the Yamaha CX5M I used to own tell me that it's totally impossible for me to do that, because the latest things I've done are that I failed to build a dimmer switch circuit on a breadboard or protoboard because I didn't understand what I was doing, as well as finding out that I couldn't even coat the end of a wire with solder, because I seem to have forgotten everything I once knew about soldering. This means that any MSX1 computer I tried this on would probably blow up!

Manuel, I don't know where I could get an MSX2 computer for €25 or so. I've looked on www.maarktplaats.nl and www.ebay.nl .The cheapest I've seen so far were on Bas and Dittas website for €45. I'll send them an email about it, but I'm worried that the cost of postage will make it about €90 total.

By valkyre

Champion (443)

Аватар пользователя valkyre

25-10-2014, 11:36

I would be surprised if you can get yourself an msx2 including postage for less than £90.

By Lord_Zett

Paladin (807)

Аватар пользователя Lord_Zett

25-10-2014, 12:56

fok nice those msx1 updates!\

By AxelStone

Prophet (2758)

Аватар пользователя AxelStone

25-10-2014, 13:35

Manuel wrote:

On the other hand, a common MSX2 shouldn't be very expensive.
(I think a common unexpanded one should cost around 25 euros or so, in the Netherlands.)

Perhaps not so cheap, however it's quite cheap, Bass sells good models of MSX2 (VG-8235, NMS8245) around 40-45€ + postage. I really think that upgrade from MSX1 to MSX2 is not a good deal since it could be even more expensive than buy directly a MSX2, and you don't need to be making any modifications with the risk of damage the computer.

By Lord_Zett

Paladin (807)

Аватар пользователя Lord_Zett

25-10-2014, 17:26

we most make a docu how a easy way to do that that msx1 to hi-er versions. and all other mods in easy to read info here on msx.org

By Fabf

Master (243)

Аватар пользователя Fabf

25-10-2014, 20:36

Yes improve MSX to MSX2 is not really cheaper than buy real MSX2.
For me it was only a challenge.
So now I can use my old YC64 (YC128 Cool ) because msx1 are too limited.

By CX5Mer

Champion (322)

Аватар пользователя CX5Mer

25-10-2014, 21:07

For me it all depends on how much postage Bas charges whether I can buy one of his MSX2 computers or not. I'll have to send him a nice email about it.

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