Due to the custom nature of this PC and the high value, weight, and fragility of dual-GPU PCs, workstation graphics cards ship separately.
For Pure 501: Simply lay the workstation flat on its right side, then install the two GPUs, starting from the bottom.
1: Cut the zip ties to allow the riser cables to be flexible.
2: Insert the GPU closest to the motherboard into the shortest riser cable.
Ensure the clip is pushed down before inserting.
3: Insert the GPU into the case, ensuring correct positioning in the slots.
Attach with screws to case. Do not overtighten.
4: Prop up the GPU with one of the included standoffs to make it level.
5: Repeat this process with the 2nd GPU, then plug in the power cables.
Ensure they're fully seated and the clips have latched.
6: Attach the glass.
Remove the cling wrap from the corners to ensure it's not trapped once the glass is installed.
Don't forget to use spacers to ensure the middle is not stressed by the extended GPU stand. Do not overtighten.