A Closer Look
After spending quite a few minutes removing a ton of protective films from almost every surface, we get our first good look at the ASUS Geforce GTX 1080 Ti Poseidon Platinum Edition GPU.
The backplate is just gorgeous. The matte black brushed finish is accented with a nice random pattern, and the ASUS and Poseidon logos are along one edge. The ROG eye really stands out.
The edge of the card facing you in a normal build carries the Poseidon and GEFORCE GTX badge just under the liquid terminal. The big box to the right is a light up ROG eye logo.
Once powered on, the ASUS logo is the infinity mirror style and is fully RGB. The default out of the box state is an orange colored ‘breathing’ pattern that is matched by the ROG eye on the backplate.
The card is powered by a pair of 8-pin PCIe connections. Just to the left is the ‘VGA Hotwire’ points exposed by a cutout in the backplate for extreme overclockers.
Once the card is installed in a system, there are two LEDs for each power inlet port. If it lights up white, you have a good 8-pin connection and red means something is wrong with that plug, or not connected in our case.
On the rear of the card is ASUS’s FanConnect II system comprised of a pair of 4-pin fan headers supporting 4-pin PWM and 3-pin DC fans. Also included is an RGB header controlled by ASUS’s Aura Sync.
The liquid terminal comes with 4 plugs, 2 nickel plated plugs carrying the ROG eye for use in your system, and 2 small plastic plugs to keep the system clean when not in use.
The liquid terminal itself is solid brass, plated and engraved with the rog design. The terminal is non-removable.
The terminal itself can handle pretty much any fitting on the market, we tried 2 very large fittings, a Bitspower soft tubing compression fitting made for ½” x ¾” tubing, and a Primochill RevolverSX hardline compression fitting made for ½” OD hardline. If these fit, almost anything else should fit.
Video outputs are a VR friendly pair of HDMI 2.0 ports, a pair of Displayport 1.4 ports, and a single dual-link DVI-I port.
We’ll start out checking out the internals of the card by taking the backplate off. The backplate is held on with 13x spring-loaded screws and one normal one.
There are no thermal pads or anything on the back, the plate is not part of the thermal solution and only serves to protect and reinforce the card’s rear as well as the obvious aesthetic value.
The front of the card is covered with the shroud, held on with 4 screws accessible through the fans.
10 more screws and the fans come off of the heatsink and the entire assembly can be removed.
The fans are made by EverFlow and rated for 3 watts each.
The heatsink makes up the bulk of the card and is a massive block of fins.
Once removed, it feels like a brick. Out of curiosity, we weighed the heatsink by itself. Tilting the scales at 2 pounds and nearly 4 ounces, heaver by itself than most complete cards.
The business side of the heatsink assembly makes contact with the GPU die directly and the VRM and memory by thermal pads.
The DirectCU area makes direct contact with the GPU die as well as the liquid cooling loop. From there, heat-pipes spread the thermal load out to the large fin assembly.
The Poseidon’s PCB is very large, extending beyond the rear I/O bracket to accommodate the large VRM areas.
The GPU’s VRM is comprised of a custom 10-phase system powered by the dual 8-pin connections.
The Memory is powered by the PCIe bus via a custom 2-phase VRM segment near the front of the card.
11GB of memory is provided by Microns D9VRL 11Ghz GDDR5X IC’s.
We’ll close this segment with an exploded view of the card.