Quote from: aliitp2 on October 16, 2021, 10:30:35 PM

Quote from: deadsix on October 16, 2021, 08:26:42 PM

You would need to use 7 of the pcie ports just on the GPU's, so how are you powering the risers???
Splitters are fine to split ONE pcie port to two for connecting two risers to each, but anything more than that is begging for trouble.

Ideally you need to have enough pcie ports on the psu to power all GPUs and risers. In a pinch you can use molex powered risers, but do not use any molex-pcie adapters that come with risers, those are a fire hazard.
As a general rule of thumb, do not exceed 80% of the rated load on the PSU for long term operation, 75% if you dont have adequate cooling.

thank you

so its ok to use the Molex 4-pin cables to power the risers instead of 6-pin cables and reserve those for the cards only ?

can i use the same cable strand for multiple risers or one riser per cable ?

finally i did the math for your last mentioned point: 5 cards x 135~w per card (of course they are power limited) = 675 W total | and 75w per riser x 5 risers = 375 W

total power needed 1050 W

are you saying i can Not use a 1000w PSU or even a 1050w PSU for 24x7 mining ??

i must admit the two models i have my eyes on are:
https://www.vatanbilgisayar.com/pc-toplama/cougar-gex1050-1050w-80plus-gold-guc-kaynagi.html
or
https://www.itopya.com/powerboost-warrior-1000w-80-gold-full-moduler-12cm-fanli-atx-psu/

due to local availability,

one last weird question, are other 4-pin Molex Cables from other PSUs exchangeable ? not sure about this PSU how many Molex CABLES it comes with TBH and i am extremely limited on my options here in Turkey:
https://www.sinerji.gen.tr/powerboost-1000w-warrior-80-gold-tam-moduler-guc-kaynagi-p-40405

kindly advise need to decide soon, thanks...
thanks,

Be careful using another cable with a psu. You will need to check the wire size and also the pinouts from the original to the other cable. You can usually buy additional cables from the psu maker / amazon / ebay. If you do borrow another psus cable just make sure the pinout is exactly the same. Use a voltage meter to make sure they wired the same…and if you dont follow this then get somebody who does or get a set from the maker.