With Claymore I cannot surpass the 400H/s, is the worst for me compared to sgminer and xmr-stak
Using default settings plus:
-allpools 1
-ftime 10
-dmem 1
What's the value for the "-h" argument? It's kinda the main thing in the claymore miner, you can see it when it starts.
I'm using in both xmr-stak and claymore 1020 for intensity and -h respectively
This are my current stats with HWInfo:
Did you try lower mem clock? Sometimes when the card is overclocked too much it's just not stable anymore and runs in some kind of emergency mode, with the hashrate being a lot lower than you'd expect. It happens quite often with claymore miners, same thing with the ETH miner where you could get 30 MH/s at xx clock, but then you add 50 MHz more and now it's only 12-14 MH/s. Did you just set your memclock to 2250 MHz and that's it? Have you tried lower clocks? I'm getting ~ 950 H/s at 1200/2000 MHz with those "uber" timings and samsung chips. My cards aren't very stable anymore even at 2050 MHz, and 2250 is just so ridiculous I wouldn't even try that clock.
I've been tweaking a bit the whole system
Now I get with claymore 920H/s
Essentially I was using a -h of 700
The I tried 900-950-1000-1050 and found that the peak was at 1000 and in 1050 it went down back. So I found that anything in between 1020-1025 gives a better value than 1000. 1030 decreases also.
About timings, CC increased to 1400Mhz and MC reduced to 2150 (no difference with 2250 or with 2050). This does not affect the power consumption. So I don't mind leaving it at 2050, 2150 in this case.
1400Mhz/2150 - 920H/s (~130W power)
1300Mhz/2150 - 890H/s - (-7W)
1200Mhz/2150 - 860H/s - (-14W)
Changing the MemClock:
1400Mhz/1750 - 860H/s - (no reduction in W)
So essentially anything over 2000Mhz does not affect the Hashrate, CC have a little performance (3%). While Electroneum stays so high, this 3% it's really important. But when it drop I think it will be way better to go back to 1200Mhz/2050
The thing is that I cannot reach that 1KH/s even @ 1400Mhz. Even testing a lot of parameters.
If your card is actually stable at 2250 MHz memclock, then there's also a good chance that you made a mistake editing your bios and you haven't actually flashed those tight timings. Most bioses these days have 2 sets of timings for different memory types, and some people put their new straps in the wrong place. For example, your Nitro card might have a set for the cards with hynix chips, and another set for the cards with samsung chips. Maybe you put that uber strap into the fields meant for the cards with hynix chips?
I posted an screenshot with my current BIOS. Here it is:
https://i.imgur.com/GHKTdcv.pngAs you can see, the 1:1625/1750/2000 straps have the mix 3.1.1 while the 2: (hynix) remains untouched.