6 gtx1080ti

[44ondaflo]

Hi guys,

I have gotten my hands on a Onda 6x PCIe motherboard, I got inspired by voskcoin by him saying it was the easiest build ever since you eliminate the need for risers.
I've ordered 6 1080ti  and I have a 1800w gold PSU. Each cards needs 250w and that equates to 1500w.
At max without the motherboard I'll be using 83.3% of the 1800w PSU. I have no idea what the rest of the system power draw will be. 
I am wondering if the 1800w psu is enough to run the system and all the cards?

[Metroid]

PSU name?

GTX 1080 ti consumes around 150 - 300w which is dependent on the algo and settings. If the psu is really a good psu, i say, yes is enough but make sure you monitor the usage with a meter or so, so you can then determine best settings and usage.

[44ondaflo]

The 1800w PSU is stated to have 90% efficiency rating, I bought it on eBay its some Chinese server grade PSU.
I have a EVGA 1000w GOLD PSU so I can possibly run 2 cards on the EVGA and 4 cards and the system on the Chinese PSU.
Would that be sufficient then?

[david987]

I run 6x 1080ti's at 75% power on 2x 850W Corsair gold PSU's. 670W and 630W from wall for each 850 PSU.

[44ondaflo]

I run 6x 1080ti's at 75% power on 2x 850W Corsair gold PSU's. 670W and 630W from wall for each 850 PSU.

Are you running your cards on stock settings or have you done some overclocking?

[Metroid]

Do not trust those chinese psu's, buy for example evga g2 or g3, or corsair rm series for the job. There is a new corsair psu named ax1600i, I would buy that one for the job if single psu. If double psu then 2 850w psu's.

[44ondaflo]

Do not trust those chinese psu's, buy for example evga g2 or g3, or corsair rm series for the job. There is a new corsair psu named ax1600i, I would buy that one for the job if single psu. If double psu then 2 850w psu's.

Alright! I appreciate the insight, im sure ill figure something out :-) However if did run the Chinese PSU what is the worst case scenario? Could it possibly destroy my cards?

[Metroid]

Chinese psu's never give what they say, meaning you can't trust that. When you buy a product you expect what they say and the chinese products in general are like that and this psu is no different, so stay away from that, yes it can fry your cards cause it might lack many protection features.

[Undefined31415]

Do not trust those chinese psu's, buy for example evga g2 or g3, or corsair rm series for the job. There is a new corsair psu named ax1600i, I would buy that one for the job if single psu. If double psu then 2 850w psu's.

Alright! I appreciate the insight, im sure ill figure something out :-) However if did run the Chinese PSU what is the worst case scenario? Could it possibly destroy my cards?

Worst case scenario, the PSU dies and takes many of your other components with it. This probably isn't likely, but you never know with these no-name PSUs. Stick to reputable manufacturers for PSUs and power accessories. At least reputable ones can be expected to have fail-safes. (For example, if you exceed a good PSU's capabilities, it will shut off and prevent damage to itself and the connected components.)

[leowonderful]

At least link us the eBay link or a picture of the PSU so we can actually see what it looks like? Chinese PSUs aren't always garbage but I've seen some of those 1800W PSUs and they don't always run the best.

A true server PSU (HP, Dell, etc.) and a breakout board or soldered connectors is going to be better, more reliable and possibly cheaper.

[david987]

I run 6x 1080ti's at 75% power on 2x 850W Corsair gold PSU's. 670W and 630W from wall for each 850 PSU.

Are you running your cards on stock settings or have you done some overclocking?

+80 core +400 mem