Going from the factory Dell not even certified power supply I went to a Bronze 750W by Corsair. Then when I got into mining I grabbed a Corsair RM1000 Gold and a Corsair HX850i Platinum. Thinking about grabbing a few more Corsair RM1000's at $100 a piece, but thought I'd ask what everyone else uses.
Single EVGA 1600? 1300? Dual 1000s? Dual 750s?
Also, even though Platinum power supplies are more efficient, I've heard that they aren't worth the price difference vs Gold power supplies. Do you feel the same way? All mine are running on 110V currently. Will switching to a 220V make that much more of a difference?
How do you determine when your power supply is maxed out? I know that you should keep it under 85% of total wattage for longevity, but what about for PCI connectors? For instance on the Bronze 750 I have, I could run one of my 290s on it, but what if I wanted to add one of my 390s? Each card says it should have a minimum power supply of X, but as long as you have enough PCI connectors and the total draw stays under the max will it be fine?
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Yes 220 is much more efficient
Been using a Thermaltake 1000 watt gold I got brand new for a song with rebate, runs like a champ. In general I'd say get the cheapest gold rated psu you can find. All the golds are good in my experience. I have a seasonic gold I've been running at just under max rated power for months and it keeps on humming.
I had one XFX die in the first couple weeks, RMA it and has been running for months. The EVGA platium died in two weeks then DOA, had to get a replacement from EVGA. Ya the highest price per watt PSU and I've had to replace it twice, good thing for the 10 year warranty.
The EVGA 1300W G2's are tanks, most of mine are used and have had zero issues with them. They are more than my rigs need for power but they are tested through time and are IMO great value.
I have 4 rigs running dual PSU's with only a bypass adapter or paperclip and have no issues. Although none of my PSU's are even close to max power, more around the half to 3/4 of max Watts.
I'd warn against Rosewill PSUs as I recently had issues with 2 of them. First a defective 1200w that lost power ~800w, then another defective 750w, both gold. I also inquired with their support about buying additional molex strings as the PSU I bought had many perif connections but it only came with one string....and they don't sell any! They told me I'd have to buy more PSUs to get more strings...pff!
but not all come with much for molex
so i started grabbing refurbs from micro center
picking up AX860s as needed for $80 each they got 3 molex strips and are cheap enough to buy for 3-4 cards each
Swapped it to XFX one 1250 W single rail and now the rig works almost fine. Rig needs a lot of time to shut down or reset. Seems to be a PSU issue again.
Found yesterday a cheap EVGA P2 1600W 80 PLUS Platinum and gonna test it on weekend.
How does one determine how many amps each rail needs? On my Corsair RM1000 I believe it has the option to switch from multi to single rail. Are there any cons to running all power supplies in single rail?
Only replaced main capacitor because of heavy load and time.