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Title: power supply help Post by: chickenliver503 on March 08, 2014, 12:57:32 PM hi can anyone help me i am going to move all of my gpu to ASRock H81 Pro BTC Intel LGA1150. i have 5 270x and 1 280x i was wondering how much power i would need for them
thanks Title: Re: power supply help Post by: NameTaken on March 08, 2014, 07:51:36 PM A 1200W should be enough.
Title: Re: power supply help Post by: grippy54 on March 08, 2014, 08:41:30 PM This is a useful list that has reported wattages etc. https://litecoin.info/Mining_hardware_comparison
270x = 180-230w 280x = 250-320w 4 270x + 1 280x have a range of 970-1240w for the cards alone. Then you need some juice for the cpu and motherboard. If you get a 1200w, I suggest getting a killawatt and add 3 of the cards and test. Then add 4 and 5 if you have the juice. Title: Re: power supply help Post by: zvs on March 09, 2014, 12:15:49 AM get a PSU with a 14 gauge cord, most household sockets in the US at least are 15 amps
i had a 16 gauge extension cord that melted err, i was talking about a power supply (*ed: ffs, a surge protector) get a PSU that's 1200W + and at least bronze cert =p Title: Re: power supply help Post by: spiderdk on March 09, 2014, 04:32:00 AM Here i could plug my psu on a 127 volts or 220 volts. I plugged my PSU on the 220v so, at the same power, it uses a lower amps, and the cable could handle with no trouble.
You can undervolt these cards on the bios, to run stable and using less power. Optimize it and your 1200w psu should be enough. Get a clamp amp meter or a power meter to see how it goes. Check your PSU % rate too, and leave at least 100W for the motherboard, cpu, memory, hdd,.. Title: Re: power supply help Post by: Equate on March 09, 2014, 07:13:08 AM Go for Lepa 1600 watt and have fun.
Title: Re: power supply help Post by: chickenliver503 on March 09, 2014, 10:12:57 AM thanks for the help everyone, i brought 2 of these yesterday http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=899123&CatId=1079. i
i have 750 watt in my main rig i can always switch out if i need to. can i use 2 psu on one computer with different watts? i think i may just put my 5 270x on this build and the 280x in my rig i am using now edit: looking at the psu now they look cheap but has good reviews.. Title: Re: power supply help Post by: grippy54 on March 09, 2014, 01:29:14 PM can i use 2 psu on one computer with different watts? Yes. You can use an add2psu to connect them.http://www.add2psu.com |