To many Rejected shares - 6xRX570 - 1880h/s - 875watss

[r3lentleSs]

Windows 10 PRO 64 bit with  17.10.1 Crimson AMD drivers and Sapphire trixx.

- Intel Pentium CPU G4400 @ 3.3GHz
- 2 x 4 GB DDR4 Crucial
- GA-H110-D3A
- 1000w 80+
- 6 x RX570 Red Dragons (elpida)

Last night did a testrun, i got 6000 shares and 40+ rejected shares, to much OC?

Sapphire Trixx settings :

Coreclock = 1325
Memoryclock = 2000
Powerlimit = -15%
GPU Voltage = -120V

Getting around 1870 - 1880 h/s with 875w at the wall. But with those many rejected, i think i should reduce my OC?
Is -120V undervoltage to much for the cards ?

Tips & ideas ?

[hagbase]

Check Hwinfo.
6XRX580 Nitro+ 8GB powered with PCIe 8 pin and Riser only.

https://www.dropbox.com/s/izugfx8divt0abs/hwinfo.jpg?dl=0

[RealSwissMiner]

Is that hash rate with the Cryptonight algo? I assume so with such a number of rejected shares.

[Sev18]

6000 shares and 40+ rejected seems <1% shares are rejected, commonly that's acceptable.
For better result, you should check OC set, internet connection and power supply status.

[oddity2505]

< 1% rejected shares rate is normal. It might not be related to the overclocking. I get a similar rejected (or stale) shares amount if I move otherwise stable rig to the far corner of the house where wifi connection is weak and ping is sometimes too long.

[r3lentleSs]

Is that hash rate with the Cryptonight algo? I assume so with such a number of rejected shares.

Claymore Equihash

I'm using a switch box with internetcable. I'm doing another testrun as we speak, 2 hours in and 800 accepted and Rejected 1.
I'm going to do another 12hr test, and check the results, so far its going good.

[RealSwissMiner]

Is that hash rate with the Cryptonight algo? I assume so with such a number of rejected shares.

Claymore Equihash

I'm using a switch box with internetcable. I'm doing another testrun as we speak, 2 hours in and 800 accepted and Rejected 1.
I'm going to do another 12hr test, and check the results, so far its going good.

Unfortunately I don't have any experience with the AMD+Equihash combination. But 800 Accepted vs 1 Rejected share sounds just fine. As already written above less than 1 % rejected shares is fine.