S5 Overclocking Help

[innerchaos]

are there any OC threads for the S5 specifically dealing with the voltage parameter..

I have a couple that I cant seem to push the frequency past 362.5.  If I do i get a lot of hw errors.
I tried adjusting the voltage from 0725 to 0750 but it did not help. 

The rest of them are set at 393M with the voltage at 0725. If I go to 400M I start to see a lot of hw errors.

all are in a cool environment, running at about 55 to 58 Celsius


I thought I read somewhere where someone was stable at 425M but I cant seem to find it.

[RichBC]

Voltage adjustment does not actually change the voltage on an S5. If you can adjust up slightly the 12V supply to the miner then that will increase the core voltage & should reduce the HW errors. A small increase may be possible by using better / shorter cables and when Overclocking you should be using all 4 connectors.

Rich

[innerchaos]

I am using corsair 750's and all four connectors are connected    ( did not know you could run without using all four )
is there a Potentiometer inside the PS to adjust the output of the +/-12v ?

[GriffinHeart]

I wouldn't suggest overclocking the 3-5th batches of S5 machines.
There have been many, many complaints about the thermal paste application and horrible screws on the newer batches. If you are getting 1-1.1 Th/s then it it's not worth it to overclock.