SaRuMan-64 C64 static RAM for DRAM replacement board

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eslapion
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SaRuMan-64 C64 static RAM for DRAM replacement board

Post by eslapion » Sat Jun 29, 2019 9:05 pm

A replacement board for the 2 DRAM chips on C64 and C64c boards 250466 and 250469 is now available.

This little board replaces the two 64k x 4 bits DRAM ICs with a single static RAM IC. Accordingly it consumes only a trickle amount of power, about 5mA. It also acts as a VSP bug fixer.

The product's name is SaRuMan-64 and it costs 13.25$US or 12 Euros.
Get 20% off when you order 5, 25% off when you order 10 or more. Distributor pricing on 25 units or more.

Shipping cost is the same as with PLAnkton; shipping a small packet (up to 12 units) to the US is 8$. Shipping cost for Europe, Australia and South America is 10$US or 8 Euros.
Get a 10% discount on up to 3 PLAnktons if you order them at the same time.

The product is strictly shipped with antistatic protective packaging. It is covered by a 90 days money back guarantee and a 3 year replacement guarantee afterwards.
SaRuMan preliminary PCB
SaRuMan preliminary PCB
Assembled product.
Assembled product.
NOW SHIPPING!

Added:
Ray Carlsen has created a guide on how to install SaRuMan-64 on C64 boards with 8 DRAM ICs. http://personalpages.tds.net/~rcarlsen/ ... PLACEMENT/
and
How to install SaRuMan-64 on the Plus/4. http://personalpages.tds.net/~rcarlsen/ ... LACEMENTS/

In the SX-64: http://personalpages.tds.net/~rcarlsen/ ... EPLACEMENT
Last edited by eslapion on Sat Dec 14, 2019 10:55 am, edited 8 times in total.


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Re: SaRuMan - 64k static RAM for DRAM replacement board

Post by eslapion » Wed Sep 18, 2019 12:16 pm

Now shipping!
Wealth, like happiness, is never attained directly. It comes as a by-product of providing a useful service. -Harland D. Sanders

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Re: SaRuMan-64 C64 static RAM for DRAM replacement board

Post by eslapion » Sun Oct 20, 2019 10:37 am

Ray Carlsen has used on of my modules to replace all 8 DRAM ICs on an older board 250407.
P1010180.JPG
The 8 DRAM chips needed about 240mA of power in all. The single module now uses less than 5mA.
Wealth, like happiness, is never attained directly. It comes as a by-product of providing a useful service. -Harland D. Sanders

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Re: SaRuMan-64 C64 static RAM for DRAM replacement board

Post by eslapion » Mon Nov 11, 2019 5:27 pm

New lower price!
Wealth, like happiness, is never attained directly. It comes as a by-product of providing a useful service. -Harland D. Sanders

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Zippy Zapp
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Re: SaRuMan-64 C64 static RAM for DRAM replacement board

Post by Zippy Zapp » Fri Nov 22, 2019 8:02 pm

eslapion wrote:
Sun Oct 20, 2019 10:37 am
Ray Carlsen has used on of my modules to replace all 8 DRAM ICs on an older board 250407.

The 8 DRAM chips needed about 240mA of power in all. The single module now uses less than 5mA.
That is awesome! Nice Job!
Commodore - Changing the world 8 bits at a time.

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eslapion
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Re: SaRuMan-64 C64 static RAM for DRAM replacement board

Post by eslapion » Sat Dec 14, 2019 10:56 am

URLs have been added in the first post to guides created by Ray Carlsen on how to install SaRuMan-64 on C64 boards with 8 DRAM ICs and on the Plus/4.
Wealth, like happiness, is never attained directly. It comes as a by-product of providing a useful service. -Harland D. Sanders

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