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GOLD CPU Assy IBM Mainframe 4381 22 Modules MCM Complex 1985 Computer System 370 for Sale - Knoppix.net

GOLD CPU Assy IBM Mainframe 4381 22 Modules MCM Complex 1985 Computer System 370 For Sale

GOLD CPU Assy IBM Mainframe 4381 22 Modules MCM Complex 1985 Computer System 370

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GOLD CPU Assy IBM Mainframe 4381 22 Modules MCM Complex 1985 Computer System 370:

SAFE Components & Equipment SAFE Components & Equipment

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SYSTEM 370 Mainframe
4381 Processor CPU Complex

Model Groups 1 / 2
22 MCM Module Assembly
Produced in 1985

Each Multi-Chip-Module is built of 64 millimeter square ceramic substrate on which up to 36 logic chips are mounted to form a functional module array. Aluminum heat sinks of a unique design rest over the chips to form a highly functional cooling arrangement for each MCM. Each ceramic module is built on an 882 pin configuration. The MCM Complex Board was designed so that all modules were Field Replaceable Units. As such, these FRU's can be easily disconnected for examination by release of the Actuator Bail and Spring Housing that secures each MCM on the backplane assembly.

This assembly creates one complete CPU that was removed from a Model 4381 Mainframe Enclosure. Built in 1985, this powerful computer design needed 22 Multi-Chip-Modules to create one complete CPU to run the IBM System 370 Computer.The solid Copper power bus bars are still with this backplane assembly as well. This provides some visual indication of the amount of power that was required to run this system. Also included is the pin and socket field alignment tool kit for the arrangement of the pins on the Multi-Chip-Modules.The overall dimensions of this Complex Assembly is about 31" wide, 26" tall, and at least 5" deep. The frame is hardened cast aluminum, with an overall weight of about 100pounds.

This is a rare piece of computer history. After looking and watching for some time, I have yet to see hardly a part or piece of this computer CPU made available. I suspect there may not be much of anything of these even in the computer museums today.

We are told there is a substantial amount of gold in the MCM's, and the backplane is heavily plated with palladium. This one assembly managed to hide away all this time and not end up in the hands of the precious metal reclaim companies.I have only this one CPU Complex Assembly available. This came from a collector I have known for many years, and he de-installed it himself from the computer system that was taken out of service a number of years ago. To this day he isn't sure why he kept it, but now he has decidied it's time to let it go.USED
Pricing is for this one assembly as picturedThis item is offered as is. This sale is final with no return offered.
(please review closely for overall condition)
This item is offered as a Local Pickup sale. This item will require special packing and arrangements for shipping. It is expected that the buyer will make their own arrangements for shipping after the sale is comleted and paid in full. If you are unable to arrange shipping, please contact us and we can provide you with contact information for some companies that can provide crating and shipping services.
Please, only inquire if you are a serious buyer.This item ships from Oregon


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Terms of Sale


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Please, it is veryIMPORTANTthat you know exactly what you are buying before you commit to the purchase.

Please judge for yourself and consider the photographs very carefully, as they are part of the description, to determine the state and condition before you make your purchase.If it is not pictured, it is NOT included in the sale.

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Safe Components makes every effort to provide our customers with quality new and used product supported by experienced sales and service support staff. Our goal is to process your request in a professional and timely manner. We are a company that thrives in building lasting business relationships.We appreciate your business and trust your buying experience with us exceeds your expectations.

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If you experience a problem with your order or just have some questions, we will do our best to assist you and make it right. We are honest and fair sellers who ask that you please give us an opportunity first before you leave any response or open a case. We believe there isareasonable expectation that a buyer and seller can work together to resolve any problems.We care and our customers come first.Our address and phone number and point of contact are on the invoice we enclose with all our orders.

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's policy states that there isa resonable expectation that a buyer work with the seller first to fix a problem with the order, or service, they may have recievedbefore opening a case. The best way for us to help you is to call or send a message to us. Our address and phone number is on the invoice we enclose with all our orders.

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