Stefan Mileschin

Here are the first pictures of a custom-design PCB for AMD's 28 nm "Hawaii" silicon. Pictured below is a pallet (a set of two uncut PCBs that are just punched, wired and stacked) of the MSI Radeon R9 290X Lightning. It exposes both the obverse and reverse sides of the PCB. MSI is taking no chances in giving "Hawaii" a strong electrical muscle, given that it's quite possibly the most power hungry GPU out there (even if not the GPU with the most transistors).

The MSI Radeon R9 290X Lightning PCB features a 15+2 phase VRM that draws power from a trio of power connectors, which is a first for single-GPU graphics cards. These include two 8-pin connectors, and a 6-pin. One can also make out three 4-pin fan connectors, and a few voltage measurement points. Display connectors include a pair of piggy-backed DVI connectors, and the usual DisplayPort and HDMI fare. The PCB overall, appears to be a good centimeter taller than what constitutes as "full-height" for add-on cards. The extra height creates room for a BIOS switch, some VRM circuitry, and the power connectors.

http://www.techpowerup.com/195272/ms...-pictured.html