VEGA rig and H110 Pro+ , How do manage all the extra power connectors?

Set Ready Go

member

Activity: 273

Merit: 17

So you have 12 ( Cool

pin pcie cables to play with. Im counting both 750 psus.

So your setup should be something like main psu powering mobo and the risers + first gpu. first vega 2 8 pins + 4 risers = 6 ( Cool

pins.

second psu will power the last 3 vegas = 6 8 pins,

Im thinking that you got 6 pin risers? if not you better get them for this build of yours.

example to buy: https://www.aliexpress.com/item/VER-006C-PCI-E-PCI-E-Express-1X-to-16X-graphics-card-Riser-Card-Adapter-with/32781899660.html?spm=2114.search0104.3.284.6IpZfx&ws_ab_test=searchweb0_0,searchweb201602_2_10152_10065_10151_10344_10068_10345_10342_10343_10340_10341_10171_10541_10562_10084_10083_10307_10301_10303_10060_10155_10154_10539_10312_10059_10313_10314_10534_10533_100031_10103_10073_10594_10557_10596_10595_10142_10107,searchweb201603_25,ppcSwitch_4&btsid=42315eb3-4de0-4780-9fd3-719afca5aca2&algo_expid=1d41c694-82b6-4d57-84bc-55ecc743b847-37&algo_pvid=1d41c694-82b6-4d57-84bc-55ecc743b847&rmStoreLevelAB=0

Zorg33

jr. member

Activity: 144

Merit: 2

Very simple solution for that is that you can use as many molex splitters as you want, since there is absolutely ZERO power draw from the molexes on the mobo if you are using powered USB risers.
So simply plug a molex splitter or a SATA power to 2x molex splitter on your PSU and plug the 2x molexes in the mobo.

tf2addict

full member

Activity: 675

Merit: 100

Research HP server PSUs with breakout boards. Google parallelminer and browse their website.

Not only will you get more power cables but it will be cheaper than ATX PSUs.

Just a side note, these are not Molex connectors.

deadsix

hero member

Activity: 751

Merit: 517

Fail to plan, and you plan to fail.

Quote from: Pendrak on November 19, 2017, 03:46:20 PM

Most video cards only need 1 8 pin conector for mining, you don't need plug both, the key is underclock and undervolt the videocard so it use only 150-160 watts. With the riser power and 1 8 pin conector you have a teorical 75 watts+ 150 watts= 225 watts, that's enough for mining.

Vega needs both plugged in to run.

Pendrak

member

Activity: 208

Merit: 46

Quote from: ben8jam on November 19, 2017, 02:42:31 PM

Wanting to setup 4 Vegas on 2 EVGA 750W PSUs on a Asrock H110 BTC Pro+. However, what I didn't realize was this mobo requires not one, not two, but THREE additional power connects (2 molex and 1 sata). I was planning on using 2 vegas on each 750, but I'm already out of perifs and I haven't even plugged in ONE Vega?

Wth?

The 750 G3 has four 8-pin VGA outputs (2 needed per VEGA), 3 6-pin sata (one for the HD, one for the SATA power to the mobo, and one for the 2nd Molex power to the mobo) and one Perif (one to the 1st molex power to the mobo).

I can't even plug in ONE riser. I've got to be missing something. How are you all managing this? I honestly need a PSU just for this dang mobo alone!

For only 4 cards you don't need connect those 2 molex and sata conectors of the motherboard.
Just disable the warning on the bios.

Also, don't put more than 2 risers per cable, if you can put 1 riser per cable is better.

The EVGA 750 G3 came with 2 normal cables PCIE and 2 double PCIE cables.

All you need is use the normal cables for the risers (if you have the risers 006c version), you have 2 psu so there is enough for 4 risers.

All other 4 cables are double PCIE, thats enought for the cards.

My guess is that you don't have PCIE (6 pin) risers right?

Those are the best ones.

ben8jam

full member

Activity: 196

Merit: 100

Wanting to setup 4 Vegas on 2 EVGA 750W PSUs on a Asrock H110 BTC Pro+. However, what I didn't realize was this mobo requires not one, not two, but THREE additional power connects (2 molex and 1 sata). I was planning on using 2 vegas on each 750, but I'm already out of perifs and I haven't even plugged in ONE Vega?

Wth?

The 750 G3 has four 8-pin VGA outputs (2 needed per VEGA), 3 6-pin sata (one for the HD, one for the SATA power to the mobo, and one for the 2nd Molex power to the mobo) and one Perif (one to the 1st molex power to the mobo).

I can't even plug in ONE riser. I've got to be missing something. How are you all managing this? I honestly need a PSU just for this dang mobo alone!

Topic: VEGA rig and H110 Pro+ , How do manage all the extra power connectors? (Read 271 times)