Quote from: Ghrindy on December 31, 2013, 10:50:15 PM

Best settings so far for my oct jupiter (4 VRM):

FW: 0.99.1-tune (oct)
OC: 231
Advanced tuning: None (default from stock version) see "Other findings"

Before OC:
Avg.HR: 560 Gh/s, poolside: 520-530 Gh/s
WU: 8045
HW err%: 3%
Pool rejects%: 0.6%
Watts: 550 W (bertmod)

After OC:
Avg.HR: 650 Gh/s, poolside: 620-640 Gh/s
WU: 9083
HW err%: 5-7%
Pool rejects%: 0.9%
Watts: 680-690 W (bertmod)
ASIC1: 56.0 ℃ , avg 53 Amps
ASIC2: 42.0 ℃ , avg 52 Amps
ASIC3: 61.5 ℃ , avg 56 Amps (highest die: 61 Amps)
ASIC4: 51.5 ℃ , avg 54 Amps
...

small update:

FW: 0.99.2-tune (oct)
OC: 231
Advanced tuning:
* SPI volt: default (1.95)
* SPI freq: default (201442)
* die voltage:

Code:

{
"asic_1_voltage": {
"die1": "-0.1121",
"die2": "-0.1121",
"die3": "-0.1121",
"die4": "-0.0938"
},
"asic_3_voltage": {
"die1": "-0.1011",
"die2": "-0.1121",
"die3": "-0.1121",
"die4": "-0.0886"
},
"asic_4_voltage": {
"die1": "-0.1121",
"die2": "-0.1121",
"die3": "-0.1040",
"die4": "-0.1069"
},
"asic_5_voltage": {
"die1": "-0.1069",
"die2": "-0.1121",
"die3": "-0.1121",
"die4": "-0.0886"
},
"spi_frequency": "201442",
"spi_voltage": "1.95",
"auto_spi_voltage": true
}

After OC:
Avg.HR: 660 Gh/s, poolside: 650 Gh/s
WU: 9246
HW err%: 2,6%
Watts: +- 700 W (via advanced-page in 0.99.2)
ASIC1: 56.0 ℃ , avg 55 Amps
ASIC2: 43.0 ℃ , avg 54 Amps
ASIC3: 62.5 ℃ , avg 56 Amps (highest die: 62 Amps)
ASIC4: 52.5 ℃ , avg 55 Amps

tips for OC:
keep an eye on Amps per die (in Advanced-page) and aim for 50-55 Amps range per die.
Then change die-voltage accordingly (2-5 steps on max 2 die's at a time) -> save and restart cgminer
-> wait 2 min. for first impressions -> wait at least 10-15 min to see if performance stabilises!
(if you OC too much, the first couple min u'll have great results, but after 10 min performance decreases fast)