I copied and pasted eu.clevermining.com, but the pings were going to nl.clevermining.com. Below are the results.

Pinging nl.clevermining.com [188.226.191.238] with 32 bytes of data:
Reply from 188.226.191.238: bytes=32 time=16ms TTL=51
Reply from 188.226.191.238: bytes=32 time=18ms TTL=51
Reply from 188.226.191.238: bytes=32 time=17ms TTL=51
Reply from 188.226.191.238: bytes=32 time=48ms TTL=51

two rigs,5*7970 gigabyte,and 2*280x asus.......

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
sgminer -o stratum+tcp://eu.clevermining.com:3333 -u  -p  --kernel zuikkis --lookup-gap 2 -I 13 -g 2 -w 256 --thread-concurrency 8192 --gpu-powertune 20 --temp-overheat 85 --temp-cutoff 90 --expiry 1 --scan-time 1 --queue 0 --no-submit-stale

WU: around 90%.....

7970 @avg 771 Khs....
280X @avg 761 Khs.....

for me the best works kernel zuikkis.......

SGminer 4.1.....first rig windows 8.1 64x,second rig windows 7 32x......

AMD Athlon II X2 340, 3.2GHz, 2 cores, 1MB L2 cache, 32nm, 65W, BOX (Socket FM2)
Gigabyte GA-F2A55-DS3, AMD A55, PCI-e 2.0 x16, 2xDDR3, SATA2/RAID, HDMI/USB2.0/RS232 (Socket FM2)
Silicon Power DDR3 2GB, PC1333, CL9
Hard disk SATA2 WD Caviar 320 GB WD3200AVJS, 7200rpm, 8MB

sorry.....

both rigs:
core clock-1090
memory clock-1500
auto fan
no under voltage


and I don't use cgwatcher,so I can't help you with that.......

7970s are running @ 1090 core 1500 mem and you get 770KH/s? :-S

I am running a stock 7970 @ 1065 core 1800 mem and get 740KH/s and an Asus 7970 Direct CU II @ 1040 (higher clocks drop hash rate) and 1725 mem and get 714 KH/s :-S

You use the usual settings? -g 2, 8192, w 256, etc?

I have my rig running with clevermining for nearly 2 hours now. (I had to do a quick restart of cgminer once after the first 15 mins to enable logging into a file). I get around 22% reject in SGMiner. But out of the 122 rejects, now i know 88 are actually rejected. I can see in clevermining that my hash rate is captured as 2.7 Mh/s with 9.9% rejects (0.3 Mh/s) which seems quite accurate.

Now I need to findout how to reduce this 9.9% further.... which still is a lot of rejects compared to what I get with other pools. Any help appreciated.

Screenshots:
http://i.snag.gy/VXPLV.jpg
http://i.snag.gy/setMo.jpg

Log:
http://pastebin.com/nH3NzDSU

SGMiner Config:
http://pastebin.com/G3D1ckN0

Hi martynw2000, I will try reducing intensity, but this may actually solve the problem of higher rejects, but will decrease the Mh/s. Overall, there may not be any real gain for me. Ideally, i need to reduce the rejects without lowering intensity. I only get around 2.5% rejects with other coin switching pools.

Try:

scantime 5
expiry 10
queue 2

What card are you using r9 280x ? 7950 ?

try:

gpu-thread 2
xintensity 4
and thread concurrency 8193

Then just have an eye on your WU-Rate (after 1-2 hours)

and before starting sgminer again del *.bin before

two rigs,5*7970 gigabyte,and 2*280x asus.......

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
sgminer -o stratum+tcp://eu.clevermining.com:3333 -u  -p  --kernel zuikkis --lookup-gap 2 -I 13 -g 2 -w 256 --thread-concurrency 8192 --gpu-powertune 20 --temp-overheat 85 --temp-cutoff 90 --expiry 1 --scan-time 1 --queue 0 --no-submit-stale

WU: around 90%.....

for me the best works kernel zuikkis.......

SGminer 4.1.....first rig windows 8.1 64x,second rig windows 7 32x......


and my 7970 are  oc windforce 3x ,I don't know if that is important......


edit:can you guys please explain me how to insert image in post,thank you.....   please don't tell me just to click on insert image,wont work....