Reference XFX RX 480 (8GB w/ Samsung memory)

mrtobin

Hi all, I've recently purchase a few XFX RX 480s (reference design - 8GB) which turned out to be using Samsung memory. I've been doing some research and found the Boysie's RX480 (REF) BIOS 29MH LOW PWR rom (https://forum.ethereum.org/discussion/9400/boysies-rx480-ref-bios-29mh-low-pwr-eth-or-dual-mining) which worked fine for all people who tried it. I even found a tutorial for a reference XFX 480 using Boysie's rom I don't speak Portuguese but my understanding is that it's the same card as mine.

Now with stock rom and clock speeds I get the following:


After flashing the Boysie's rom, the hashrate drops to 16Mh/s while the power consumption spikes to 130W

I'm wondering if anyone had a similar experience with these reference XFX cards? I've also tried increasing the memory/core frequencies but that either has no effect or just makes the hash rate worse.

Any help would be appreciated!

theneogeo1982

Did you make sure it was same memory chips?

mrtobin

Yeah. That tutorial I've linked also uses Samsung mem card.

Lagniappe

Man I really owe you one, I almost bought this card.

If you PM me your address, I will send you some fresh kefir grains, I have too much

akakak

I have the same card and landed in a similar issue after bios mod. You can restore the card to original bios and it will work fine. For now, I am getting a steady 27.5 with overclocking.