How did you managed to overclock memory over 1075mhz?
I thought all rx6000 will lock core to 500mhz if you override stock settings.
i copied your in-depth settings and tip’s, was able to get the watt’s down by about 9-12w per card, thank you 
now they are superb efficient…
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Sweet mate!! You have some nice cards there
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yes seems like i was lucky, just one this one card with 48w 
but im really impressed, didn’t thought i could save another 10w per card… wow amazing! thanks to you 
you can save a few extra watts across your cards if you drop the SOC settings as well…
Try this, if it crashes up the VDDmax by 5 until its stable.
Lowest I can get one of my 6600XTs to run is 418/765 - highest is 420/775
This was mentioned by someone else way up this thread so credit goes to them 
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Hi apfelwein, what model Powercolor are your cards? I am interested to see if there are any noticeable differences across the three 6600 XT types (Fighter / HellHound / Red Devil) that justify the price difference (for mining).
may i have a full screenshoot of your OC setup?
they are all red devil’s ^^
somehow i got them as the most cheapest model to buy, the last month’s. but now they are super pricy (all of the 6600xt’s)
yes i have done that already i looked up all your postings in this thread and found that settings. im on 418/762 on all card’s, but one card is crashing i will up it by 5 each
Has anyone here have problems running 8 gpus in 1 motherboard? i have 4 at the moment will try to run 8 with pcie splitter. Motherboard is msi z390 plus with celeron processor. Would need some advise before i buy more or do i need to change motherboard. thanks
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I am running 10 cards on an MSI z390a pro. i have one 4-way splitter and running one on the m.2 slot.
5 pcie+4 pcie 4-way+1 m.2 = 10.
i diabled basically everything in the bios and turned the two pcie settings to gen 1.
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Cheers brother
what processor are you using? what series?
can you give me a full screenshot of your hive os page?
and can i see your RIG photo clearly, your motherboard photo with PCIE ?
seems very interesting to see the composition of the components you use.
I have XFX Speedster SWFT 210 AMD Radeon RX 6600 XT and it won’t go over 950 for the memory clock. Seems to be limited to 950 since anything set over that will reset it back to 875. Any ideas or this is maximum with it?
Hynix GDDR6 · 113-23L86SHD2-D01
I have an XFX qick 6600xt and no matter which version, stable or beta, old stable or old beta (I’ve tried many) my memory clock will not change from the default of 1000 mhz. I’ve tried countless things like rebooting, reflashing, stopping and starting the miner, etc and nothing will make it budge. It won’t even go to 1050 even though that is under 1075, so that isn’t my problem. Won’t go under 1000 either.
Any ideas?
@borisjer @catmusic
execute via Run command and show your amd-oc log for RX 6600 XT also report installed Hive OS Linux client version
Found the problem. I got RX 6600 without XT. That one is not even on their website listed.
Detected 1 AMD cards
GPU BUS ID : 03
CORE_CLOCK : 900
CORE_VDDC : 638
CORE_STATE :
MEM_CLOCK : 950
MEM_STATE :
MVDD : 1300
VDDCI : 677
SOCCLK : 418
SOCVDDMAX : 765
REF :
FAN :
PL :
AGGRESSIVE =
=== GPU 0, 03:00.0 Radeon RX 6600 8176 MB #0 === 17:15:16
Default Power Play settings from VBIOS for Navi20
CORE Clock max: 2900MHz, Voltage: 773-1150mV, SOC Clock: 418-1280MHz, Voltage: 762-1050mV
MEMORY Clock def/max: 875/950 MHz, Voltage: 1250-1350 mV, VDDCI: 675-850mV, TC: 1
POWER PL: 100W OV: -6%/+20%, TDC GFX: 100A, TDC SOC: 18A, TEMP Target: 75C
Applying changes to Power Play table
SOC: 418MHz@765mV (TDC Limit 18A) VDDCI: 677mV MVDD: 1300mV
Applying OC via SysFS API
Setting CORE: 900MHz@638mV MEM: 950MHz
Setting Fan speed set to Auto (HW)
RX 6600 GPUs featured lower memory bandwidths than the RX 6600 XT and the more powerful RX 6x00 series cards
14 Gbps vs 16 Gbps (probably some copies will be able to take a frequency of 1000, but this is unlikely.)
This help me a lot!
Thank you