Deep learning is hot, it is all over the news, hacker news, that is.
After some research I am convinced deep learning was not just some fad, it is the real deal, I decided to build a new PC for deep learning. (But really, just an excuse I gave myself for replacing my perfectly fine 3 year old PC.)
Here is the part list:
| name | brand/model/desc | # | CNY ￥ | USD $ |
|---|---|---|---|---|
| case | Corsair 780T | 1 | 1279 | 176 |
| PSU | EVGA SuperNOVA 1600 T2 1600w Titanium | 1 | 2899 | 387 |
| motherboard | Gigabyte X99-UD4 | 1 | 2699 | 260 |
| CPU | Intel Core i7-5930k | 1 | 4399 | 570 |
| RAM 1 | Kingston HyperX Fury DDR4 2400 32G (16Gx2) kit | 3 | 5097 | 672 |
| RAM 2 | Kingston HyperX Fury DDR4 2400 16G (8Gx2) kit | 1 | 899 | 122 |
| video card | Gigabyte GTX1080 G1 Gaming | 3 | 14997 | 1770 |
| Hard Disk 1 | Samsung 850 EVO 500GB SSD | 1 | 1299 | 170 |
| Hard Disk 2 | WD Black 4TB | 1 | 1999 | 224 |
| DVD Reader | ASUS BW-16D1HT Bluy-ray burner | 1 | 669 | 84 |
| CPU cooler | Phanteks TC14PE | 1 | 399 | 75 |
| WIFI/Bluetooth Card | MSI Wi-Fi AC Kit-S | 1 | 299 | |
| Fan 1 | Phanteks F140XP | 2 | 168 | 32 |
| Fan 2 | CoolerMaster FP120 PWM | 1 | 79 | 18 |
| OS | Windows 10 Pro | 1 | 986 | 140 |
| software 1 | MS Office 2016 Home-Student | 1 | 499 | 140 |
| total | ￥38666 | $4840 |
The reason I choose this combination of CPU/motherboard is the potential to have 4 graphic cards installed on the motherboard. Core i7-5930K has 40 PCIe lanes that supports 4 GPUs. Gigabyte X99-UD4 has 4 evenly spaced PCIe slots. The PSU I got-EVGA 1600w should be more than enough to support 4 GPUs. Is is unlikely I will need 4 graphic cards, but the potential is there.
I got all parts in China and over-paid roughly 15% compared to US, which is funny because almost all of these were assembled in China.
Here are some pictures (click for full photos):
case (or just box) 
Motherboard, PSU, CPU, graphic cards, memories:
Rest of parts, CPU cooler, blue-ray burner, hard-disk, SSD, M.2 Wifi card, fans:
fan, software:
In its full glory:
No, I did not do a good job of cable management as you can see above.
This thing is huuuge, here shows the size comparison with a regular mid tower.
