IBM 330 450DX2 cache \ VOGONS

IBM 330 450DX2 cache

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First post, by Nibitor

Posted on 2023-10-01, 09:16

Nibitor Offline

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Rank: Newbie
Posts: 19
Joined: 2021-09-26, 12:12

Hello,
i ressurected one of this old warriors, being in very bad shape, corrosion etc.
Now, i want to make some upgrades and first thhing that i noticed is that mobo don't have any cache modules installed.
Does anybody know what type of cache modules this machine uses, where to find them...
Thanks 😀

Reply 1 of 3, by tauro

Posted on 2023-10-01, 13:40

tauro Offline

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Posts: 481
Joined: 2013-01-12, 18:53

Does it look like this?

The attachment ibm.jpg is no longer available

If so, you need DIP-28 static RAM modules. Each one should be 32K, and you can install either 128k (4) or 256k (8), plus a TAG chip.

You can find them online, look for SRAM DIP-28.

Here's more information about this board:
https://www.elhvb.com/mobokive/eprm/eprm/f347.htm
https://theretroweb.com/motherboards/s/ibm-pc … 71,-pc-350-6581
https://theretroweb.com/motherboard/manual/IB … 50-486.html.pdf

Reply 2 of 3, by Nibitor

Posted on 2023-10-01, 14:16

Nibitor Offline

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Rank: Newbie
Posts: 19
Joined: 2021-09-26, 12:12

Yes, that is the board...thank you my friend!

Reply 3 of 3, by tauro

Posted on 2023-10-01, 14:28

tauro Offline

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Posts: 481
Joined: 2013-01-12, 18:53

Nibitor wrote on 2023-10-01, 14:16:

Yes, that is the board...thank you my friend!

You're welcome 😀
It's a solid VLB board with a good on-board video card.
Just beware that it only supports 5v CPUs (unless you have the VRM module)!

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