buying a new 470 today and 480 later next month.

[beks1]

I bought 470 4Gb nitro and got Elpida memory that can not be edited in Polaris bios editor.
I have to wait for the new Polaris bios editor 

[Charloz24]

Just buy the cheapest 470 4GB you can find, it will hash at 28.5

Do you need to flash bios to reach those numbers?

[LoneRangir]

Just buy the cheapest 470 4GB you can find, it will hash at 28.5

Do you need to flash bios to reach those numbers?

Yes. 

https://www.youtube.com/watch?v=OP_zSP2H6ho

[Charloz24]

Just buy the cheapest 470 4GB you can find, it will hash at 28.5

Do you need to flash bios to reach those numbers?

Yes. 

https://www.youtube.com/watch?v=OP_zSP2H6ho

Ok and is win10 required? or it will also work on win7

[LoneRangir]

W7 FTW...

[Charloz24]

W7 FTW...

Thats what I wanted to hear, thanks!

[ORiN]

Same here, going for Win7 for my upcoming rigs.

[Cryptozillah]

Same here, going for Win7 for my upcoming rigs.

Why ?
Win 10 is solid for ETH mining

[toptek]

well i had to back down both RX 470 to 26 MH limits it seems after taking the ref card to 2000 memory speed it did nothing but waste power but if i  jumped over 2k it blues screens then crashes .

The NITRO+ Radeon RX 470 does the same thing but when I hit like 1960 memory speed or higher it crashes . the setting i use now are core clock 1100 memory clock 1900 on both with a temp limit of 72c and power tune set to 30 it runs really really stable for me @ 26 MH on a striped down version of windows 10 with only the services i need running.


 i know that means more tweaks in the bios it self which I'm not up to right now .SO i settle for that for now .


P.S those Ref models or this http://www.newegg.com/Product/Product.aspx?Item=N82E16814202230 get hot even at 63c it is hot, all most to hot to touch .  The NITRO+ runs 10 to 12 c cooler at the some setting, Plus i have a box fan blowing on the 3 card rig at low setting  and gonna use these https://www.amazon.com/gp/product/B00IJ2J2K0/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1 to cool it more with a self powered USB plug.


cya

[Cryptozillah]

It seem like the reference cards is king of the ETH hill. No hazzle just solid hash. Plenty of good roms around to play with.
I picked up two slightly used reference 480 8gb cards today. Cheaper then the cheapest 470s cost around here. +61Mhs in a day or two.
I will keep scooping them up

[LoneRangir]

The reference-style 470 doesn't seem to mod very well.  The system will not boot once I restart after flashing.  Has anyone else either had good luck, or a similar hanging/bricking experience? 

After booting into safe, disabling, restarting, and flashing back to stock, the system will still hang when i re-enable the card.  This is happening with what I believe to be the stock rom flashed onto it.

[3min]

Does it seem like undervolt + overclock is getting the least error free blocks ?

[Mzie]

Thats a good solid card right especially after changing bios , its worth mining with

[LoneRangir]

My flash/mod went poorly.  I need the stock rom for the sapphire 470 reference with micron memory. 

From what I've read, I should have used ATIWinFlash to create my backup, instead of GPUz.  GPUz created a 128KB file, instead of 512KB.  This can lead to problems??? 

Any insight is welcome.