Quote from: dcarnelutti on October 29, 2014, 04:08:09 AM

Quote from: IonHammer on October 25, 2014, 04:50:26 AM

Quote from: dcarnelutti on October 25, 2014, 12:46:47 AM

what is the recommended PSU for a S3 ?

can i buy 1 PSU 1000 watts and connect 2 S3 together?

I just started S3 mining and went though similar PSU choice issues, in the end i went with 1:1 1 psu per 1 S3.

To give me some flexibility I went with a FSP Raider 750 Watt 80 plus Silver PSU, it has 4 6/8 pin pcie connectors so I can fill all the S3 power connectors,
apparently this allows you to overclock and keeps the unit slightly cooler per given freq.

Secondly, it has a common 12 V rail giving 60 amps which is more than enough for an S3 and allows the PSU to run at around 50% capacity which has an efficiency over 90%.

One thing I have noticed with some Gold modular psu's is they have multiple 12 V rails and may add up to 700-800 watts but only deliver 18 amps (per rail),
if you power you S3 with one connector per side from a rail like this you are going to have trouble as an S3 needs 24-30 amps depending on who you read.

With lots of PSU's it does chew up more space and power points but you don't have a single point of failure and your not running your PSU at 90-100 % capacity.

Good luck with your PSU hunting.

Will this PSU be able to handle 2 S3+ ?

Here is a link to a great guide for information about potential PSU's https://bitcointalk.org/index.php?topic=486121.0