These 2 boards came from a very old early 80’s IBM Mainframe, I believe they are RAM. These two boards are identical, except one has 160 double-stacked gold-capped and legged ceramic chips and the other has 160 double-stacked plastic chips. Total weight of the plastic version is 16.9 ounces or 478 grams. Total weight of the gold version is 19.4 ounces or 550 grams. That’s a difference of 2.5 ounces, or 70 grams between the gold and non-gold circuit board. Thats as close as my scale can get it. The item “IBM Mainframe Vintage RAM Boards for Gold Scrap Recovery PCB circuit HEAVY! SLT” is in sale since Sunday, September 6, 2020. This item is in the category “Coins & Paper Money\Bullion\Gold\Scrap & Recovered Gold”. The seller is “rowist-0″ and is located in Providence, Rhode Island. This item can be shipped worldwide.
- Composition: Gold
- Type: Scrap Electronics