Older motherboard, Socket No. 462 / 423 without heatsink (plastic CPU socket). Batteries, metal sheets, metal brackets, heatsink have been removed. Grade A

Tester motherboards, technical desk, medical devices, printer with less visible gold content but with several components containing precious metals and gold connectors. No metal transformers and no batteries. Grade E

Old generation motherboard, socket 486 n° 1 / 2 / 3 / 5 / 7 / 8 / socket 463, socket 370 / PGA2 / slot 1 / slot 2 without heat sink (plastic CPU socket). Batteries, sheets, metal fixing, heat sink have been removed. Grade A

Backplane board with multiple gold connectors on only 50% of the surface, grade D. These backplanes serve as supports for trays in server cabinets, they carry bare gold-plated connectors or pins. The term grade D was chosen because only 50% of the board is found covered with pins or connectors. Are not found to be gold-plated the backplane will be put in...

Daughter board (plug-in) without heatsink, with metal. Batteries have been removed. Grade B

Consumer electronics boards such as receivers and recorders. These boards have passive components and capacitors. Grade F

Recent motherboard, Socket INTEL MPGA 478 / 775 / 1155 / 1156 / 1366 and AMD 754 / 939 / AM2 / AM3 and new without heatsink. Batteries, sheets, metal fixing, heatsink have been removed. Grade A

Daughter board (plug-in) with heatsink, with metal. Batteries have been removed. Grade C

There are aluminum components and copper components (e.g., coils or transformers) on the printed circuit boards. Printed circuits consisting of cathode ray tube devices, power supplies, and transformers. There is barely visible gold plating. In addition, very few active components are installed. Grade G