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Hello
i have build small rig whit 5 x msi gtx 1060  6g  i have H81 mb  but problem is that i cant get 5gpu online it has  power i have powered risers  any idea, the 5th gpu is powered from molex its my be tihs a problem , the ps is modular but has only 4 gpu connector , and 5th card i have powered from molex they go on 6 pin connector at end, the gpu has power cos fans are running on her.
mb h81 pro btc
gpus msi gtx 1060 6G
cp celerom
PS chieftec 1000w
ELEGIANT PCI-E Express 1x to 16x Extender Riser Board Card Adapter Riser Karte USB 3.0 Kabel mit SATA  you can chek on amazone

Gpu is not dead cos i have placed in other rig and she runs , i have change in bios all to gen1, 2 or auto its the same  tested other riser if the first was dead no he is working.

4 gpus are running prefect at 301 to 309 pro card all together 1214 Sol/s
4 gpus take like 550w -+ 50w whit monitor and system at the moment

I dont see the gpu in windows only 4 gpus

sorry for my bad English.

tnx  

4 gpus take like 550w -+ 50w whit monitor and system at the moment

gpu error code 43 ?

i dont get any error i dont see the gpu in device manager only 4 and not 5

which oprating system you have installed on rig ?

Have you tried to power the 4th gpu with molex and the 5th with the normal VGA power cable, or/and switch risers (maybe a bad one is happens)

This is your problem

A 6 pin pci-e line can throw up to 300 watts at 12v

a 5 pin molex can only throw 5v which is a huge difference.

buy a different psu...don't use molex splitters/converters.

If you have to, use an add2psu connector.

then from that connector from psu  what you can connect  hhd, dvd (molex)... you cant run gpus ?   like this

You need 12volts,

pcie is 12 volts... molex is 5 volts.

A pci-e splitter(pcie to 2x pcie) might work...but I highly suggest getting a psu with the proper connectors.

ok tnx any ps that is ok for 6 gpus and normal price  chieftec has 1250 w  for 188 euros that the cheapest what i now that arent so bad. (and iam EU not USA) so no eggs pls;)

If you have 2 psu's you can connect them with one of these "add2psu" connectors:
https://i.imgur.com/z7aXi8d.jpg

Just make sure not to use 2 different psu's on the same gpu.

I suggest using only 1 psu per rig unless you know what you're doing though.

Not that anyone truly knows what they're doing.

nah if psu is problem i will buy new one whit 6 connectors for gpu  cos i want to add 2 more gpus on my rig so. tnx any way

I see here psu specialists. Molex is 4 pin connector.

You have ~12V yellow cable
GND 2 black ones
1 red with ~5 V

And betwen yellow and red is ~7V

But problem with molex is that have always small cross section.

Or you need other psu or you can try to make custom cables like that:

I am using this in one card (bought psu with not enought 6/8pin pcie cables)

3/4 molex -> 6/8 PCIE connector. And remeber, all molex must have another line, not 1 cable with 3 molex and connected to card <- this still be 1 cable.

I have super flower leadex 1600w GOLD 93+% ef. Have enought cables to use 6 PIN risers and power cards

i have one of this bit like is see he is missing on +12v dc  and one gnd then it has to be this that my gpu is not running
http://www.ebay.com.au/itm/GIGABYTE-2-x-Molex-to-8-Pin-Power-12CF1-1PW013-11R-Molex-to-VGA-Power-Cable-/281517349096

then i need this one
http://www.kleinspul.nl/index.php?productID=1819

if iam correct ????

AFAIK any molex->PCIe 8-pin power adapter will work. I would also choose second one.

It's not always enough

If  you run 6 cards on these without any standard pci-e lines then you're asking for your house to burn down.

or try one of these

http://www.ebay.com/itm/401195513882?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

I have the same Mother board and no issue yet with four or five cards after i started using the above raiser i had a few RC burn out ..  .. The new ones  seem a lot safer to use .. the parts look and fell better built .

here is some one that sells them in the US if you can't wait all most three weeks from China.


http://www.ebay.com/itm/311763730183?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT


I bought from both Sellers it is the same card from either, one takes longer to get, cost less, while it only takes a few day for the one in the US  it does cost more with Free shipping ..

As you can see this is good cable, but is better to have more 12V cables then GND. In molex allways 2 midle cables are GND. Right one (90 deggres at bottom), is 12V (should be yellow). Good if you have litle skills and can make this cable alone. Buy PCIE 6/8 PIN female connector, 1-2 m good cooper cable, and 2-3 molex and both pins. In my country all cost less then 1 molex -> PCIE connector, and i have guarantees, that i have very good cables that are not hot after 10 min of mining.

tnx for all infos but i have bought new psu  and it work prfect now and i can add the 6 gpu in my sistem ;)