HDPLEX Fanless PC Case

Silent Gaming PC with Passively cooled GTX 970 in HDPLEX 2nd H5 Fanless PC case ,Temp under 70C under Four hours 3D Testing

Thanks to Jerpelea. The details for this fantastic project could be found at Hackaday
Author also detail his build up log at Silent PC Review Forum SPCR here.

Hardware
CPU Intel i3-6300 (51W)
MB Gigabyte GA-Z170N-WIFI (15W)
RAM Corsair Vengeance LPX DDR4 2133MHz 16GB (2W)
SSD Samsung 950 EVO 250Gb (4W)

Test build
GPU ASUS GeForce GTX 960 STRIX-GTX960-DC2OC-2GD5 (120W) – test built
PSU Silverstone SX500-LG 500W Gold SFX-L (for tuning only)

Final build
GPU ASUS GeForce GTX 970 4GB STRIX-GTX970-DC2OC-4GD5(150W) – final build
Streacom ST-ZF240 ZeroFlex 240W Passive PSU(final build)

RIP
PSU HDPLEX 160W AC-DC w/PFC + HDPLEX 160W DC-ATX (did not start and i returned it to amazon!)

the complete build it takes around 1h and you will obtain an silent computer in an case with with amazing cooling capability
i have tested it in both prime95 and Furmark (burn) and case is able to handle 90W GPU and 35W CPU without any problem

Passive cooled GTX960 in HDPLEX 2nd Gen H5 fanless PC case

Passive cooled GTX960 in HDPLEX 2nd Gen H5 fanless PC case

Passive cooled GTX960 in HDPLEX 2nd Gen H5 fanless PC case

Passive cooled GTX960 in HDPLEX 2nd Gen H5 fanless PC case

Passive cooled GTX960 in HDPLEX 2nd Gen H5 fanless PC case

This project shows how to build a silent gaming machine that would be passively cooled and offer enough power to play latest games with high quality settings.

The GPU is alwais the main limiter in HTPC computers because of the high power usage, HEAT and size limits. The whole idea started after i have checked the power settings of GTX970M GPU that is installed inside high end laptops. This high end GPU has a power limit of 85W while the desktop GTX970 has 150W power limits (officially). In this project i have limited the power to 105W for the GPU and used the GTX970M clocks so that it will fit the cooling capabilities of the case.

The intel CPU has been under powered from 51W to 35W since we dont use the IGP and we need to save some power.

Finally gtx970 is in place.PSU is in final position with thermal pads and cables are reworked

Passive cooled GTX970 in HDPLEX 2nd Gen H5 fanless PC case

GTX970 bios tables Hack to low power
i have replicated GTX970M frequencies and lowered TDP to 105W

Passive cooled GTX970 bios hack to lower power

Passive cooled GTX970 bios hack to lower power

Passive cooled GTX970 bios hack to lower power

3dMark test using the new power and freq table

Temperature does not exceed 70C after 4hours of 3D demo loop

Passive cooled GTX970 3D Testing

Passive cooled GTX970 in HDPLEX 2nd Gen H5 fanless PC case

HDPLEX STORE | Blog Admin