Same card AND hinyx memories? I sincerely doubt that but I’d love to be proven wrong, don’t take me wrong!
These can’t even mine for 20min with 2200 mem clock. 1500 is the most stable so far and still has ~3% invalid shares (didn’t have the time to try to push it up since removing the PL, maybe tomorrow) 
I also wrote to one YouTuber that he is pushing his GPU too hard inflicting too much heat. You can see my highlighted reply at LHR Unlock RTX 3060 TI V2 T-Rex 0.24.5 from Nicehash Miner! 47mhs - YouTube
I have PL 140W.
Btw, that 1070 is a sad story. Have to keep it low for not crashing the system 
Don’t have the energy changing the paste as I’m waiting new cards to arrive.
Yeah you don’t have this card though. The issue seems to be with this card specifically with hynix mems. Which is why I’m trying to find people with the same exact card to see if they share the same experience (I have 2). Other cards even with hynix can handle better mem clocks, this one doesn’t seems to.
There’s absolutely no temp issue. If you check first post you’ll see the cards running at 50ºC
I will try higher PL up to 140W and see if that brings stability to higher mem clocks but I don’t see the reasoning behind it. I’m willing to try anything though. Your kh/W is a bit worse but not too bad.
I have an ASUS ROG Strix GeForce RTX 3060 Ti OC V2 with Hynix mems and my exprerience is the same as xorstl.
if i bring the mem value above 1500 the system will crash.
So currently my settings are the followings:
Core: 1400
Mem: 1450
PL: auto
With these parameters my hash rate is: 42 MH/s without any rejected.
What is your parameters currently?
Thanks for the answer!
Regards,
Akos
Thanks for sharing. At least this is not the only card. I know for a fact other cards with hynix can do much better. Maybe the thermal pads are just bad and the mems heat up too much? Nvidia has really crap sensors compared to AMD so it’s impossible to know if the mems are getting too hot. I don’t want to open the cards as this is EU and it’s still legal do void warranty (unlike in the US now) for simply opening the card to change the thermal pads.
My settings are shown in the first post of this thread. 1400 core (changed to 1410 to match default clock, helps with LHR), 1500 mems. I’ve meanwhile removed the PL which did indeed bring some stability without increasing power consumption, as suggested by @keaton_hiveon but I still get some rejected/stale (could be the pool and not my rig so ignore this for now), about 1-3% (the longer it runs the lower it gets which is good).
Are you by any chance using a pendrive? I recently switched to an SSD to see if I could fix a different issue and I seem to be able to OC the memories now. Sounds weird but hey, if it works it ain’t stupid.
So far at 1600 memclock, will let it run for a long while before I try upping it. Apart from this the only thing I changed was improving ever-so-slightly the airflow on the backplates of the cards, but that did little to no difference on the core temps (which were more than fine already) so I doubt it did anything for the mems. It doesn’t seem to be temp related anyway.
Found a guy on youtube that does physical mods on the cards and he was able to get much higher clocks by undervolting the mems. It seems the Hynix just can’t handle Nvidia’s voltage specs if OCed, but they can if undervolted. Sadly we can’t do that without physically modding the card.
Anyway, if you’re using a pen-drive, try an SSD.
PS: also make sure you use the option to delay the OC for X seconds, which should be your miner start delay + your average DAG creation. Nvidia cards can’t handle DAG creation with OC as well for some reason, AMD cards can do it just fine and in half the time (6sec for a 5700, 12-14sec for the 3060Ti).
And was is the hash rate now?
43-44 with same power consumption
That’s impressive (compared with the 41-42 mhs values 
)
OK, could you please give me a step by step process how can I reach the same mhs like you did it?
First, replace my HDD (yes, I’m currently using HDD and not SDD, so I think your suggestion will be my cure)
Than, how can I move forward? Do I need to start the mining with the basic settings or do I need to reduce the Core clock to some specific value?
Thanks for the suggestions!
Regards,
Akos
Yep but that’s a FE card right? FE cards are usually the best quality PCB designs, my card is a “low end” aftermarket card which sadly is not as well built. The mem chips might not even be the same, I will try to find a PCB pic and check that out!
It seems these cards are so picky they require everything else to be perfect. I mean, you’re doing 2800+ memclocks while we’re struggling to get 1600 here 
Literally the only thing I hadn’t tried before was switching to an SSD and so far it holds clocks that it wouldn’t before…!
PS: could be a mix of pendrive + 4GB memory specifically too… that was my setup when I couldn’t OC.
Nothing special just use the option on Nvidia OC settings “Delay in seconds before applying overclock”:
20 sec for me since DAG usually takes 12-14sec and I have a 5 sec miner start delay, so that should ensure OC is only applied after DAG is created. Other than that the only thing is the SSD instead of the pendrive. If you already using an HDD, not sure it will make a diference. Btw, how much RAM you ahve in the rig? To see if there’s anything else different from your rig to mine.
Currently trying 1800, 1600 was stable. 44-45.5
well, first of all, thanks for the help! I really appreciate it!
and for my config…
I will note down everything, just to make sure to see the whole picture.
so:
Motherboard: ROG STRIX B450-F GAMING II ASUSTeK COMPUTER INC. (4007 12/08/2020)
CPU:12 × AMD Ryzen 5 3600 6-Core Processor AES
HDD: ATA ST9320325AS 320GB
Memory: Crucial 4Gb, ddr4, 2400Mhz CT4G4DFS824A
From software point of you:
Based on nvidia-smi: NVIDIA-SMI 470.86 Driver Version: 470.86 CUDA Version: 11.4
HiveOS ver: 0.6-213@211227
using latest nbminer on ethermine pool
paralel of the ETH, I’m mining RTM as well with the CPU
And you’re sure it’s not the PSU that can’t handle cpu + your cards right? I use t-rex btw
I think not, because it’s a Chiftec A90 650W PSU, and this PSU only serve 1 GPU and one CPU
do you mine something else beside ETH or why do you use t-rex?
Yeah with a single GPU you’re fine.
Seems to be the most stable LHR unlock for me.
Ran the whole day and night with no issues… Seems my problem was indeed the pendrive… weird.
Also btw that power consumption is bonkers. The kh/w for those 46MH/s is aweful, better if you lock core clock so you reduce the voltage needed and thus the power. Going “-500” or “-200” on core is not worth it for LHR cards.
I have this card. I just got it and only played around for a few days with it but mine seems to be doing fairly well for being an LHR card. I would have to double check my numbers for I am away from my machine atm but I am getting 46-48 mhs at around 120-130 watts.
Windows 10
Nvidia driver 472.12
Trex 2.48
Core clock locked 1400
Mem +1800
Pl 100%
Take note though if you do core clock lock you don’t want to move your pl from 100%. Your core clock lock speed is goin to control your pl automatically and if you set it lower than what it needs you get massive clock speed fluctuations which causes instability and crashes
