Quote from: alfaris on August 09, 2016, 05:18:50 AM

Quote from: scryptr on August 09, 2016, 04:08:41 AM

Quote from: adaseb on August 09, 2016, 12:00:27 AM

Quote from: alfaris on August 09, 2016, 12:00:03 AM

Hi Claymore,

i get with R9 280x 15.5Mh only not 20Mh
How can i improve it ?

Its normal for 280x.

DEPENDING HOW HOT YOUR ROOM IS--

280X cards run hot and eat power. If your cards are overheating, you may need to downclock, and earn 15-16MH/s per card. If you set "-dcri 15" in your config, you will reduce the intensty of your secondary coin by 1/2 and give your 280X cards more room to breathe; they will run faster and at lower temperature. If you set "-cclock 1100", you will overclock your card, increase the hash rate, and increase the temperature of the card. A core clock of 1100 may not be stable for your card/rig, you have to check postings by other miners regarding overclocking. If you set "-tt 87", your card will self regulate, attempting to keep the temperature at or below 87 deg F. If you are in a hot room, your hash may be 15-16MH/s because of temperature throttling. My 280X cards made 22MH/s last winter, when the room was cooler, and the difficulty lower, and the DAG smaller.

All of this and more is in the README!!!.txt file, you should study it. --scryptr

after research i overclocking core clock to 1100
and memory clock to 1600

i get 18.5Mh but run very hot 75c

can i get better hash rate if i overclock higher ?

and thanks for this info ..

me too but not is for temperatue....

i have 1x R9 280x Sapphire win 7 x64 claymore 5.3 driver 15.12 and set overclocking to 1100/1600 powelimit 20, -dcri 60 -ethi 16 i get 17.2 M'hs ETH and 517 m'hs SIA. dual miner

when i dont use overclock i get 15 M'hs eth and 240 mhs sia

i test to use ethOS distribution linux and get 17mhs max..

why people can mine with 20mhs and i cant? Huh

?

Thanks rep++