That's kind of what I'm thinking. I'm no stranger to ebay and selling high risk items, but I wanted to see if anybody has ever heard of this situation before. I find it to be extremely unlikely that tons of them got shipped out this way. Again, I just wanted to see if anybody has ever experienced this type of
 (alleged) situation with cards.

Thanks!

Hi,

I recently got a shipment of Sapphire 580 Nitro+ 8GB cards in. The box is for an 8GB card, the serial number (on the box and on the card itself) says that they're 8GB, but the card only shows up as 4GB when connected. There are at least a handful that are this way, but they all haven't been opened yet. Has anybody ever seen this before??

These are from a very reputable nationwide supplier, so it's not like I bought them in some sketchy deal or anything.

Thanks!

EDIT:: I'd like to add that I sold these cards on ebay and the buyer is telling me that this is the case. I'm skeptical, which is why I'm posting on here to see if others have seen anything similar ever before and especially in the more recent shipments of Sapphire Nitro+ cards. Thanks

Hi,

I see that there is some talk of people using the T7500s for mining, but not a lot of follow-up on the setups. Just curious what your experience has been so far? I've got a few that I'm planning on using as well, but haven't started yet. I'm wondering how many GPU you're able to get running on one of these with the included 1100w power supply? It seems to me that you can get 4 with a couple power cables adapters (8 pin to (2) PCIe 6+2 pin and 6 pin to PCIe 6+2 pin).

Thanks!

Hi, thanks for the reply!

I had the newest adrenaline drivers installed. So, I Uninstalled them using DDU and then installed the blockchain beta drivers. After I do that, AMD settings window won't open and Claymore crashes during startup.

Then I reinstalled the adrenaline drivers and everything worked again (at 23mh/s). I changed the speeeds you suggested in Afterburner and the performance actually got worse (around 21 mh/s).

Any idea why that may be? Any other suggestions??

Thanks again!

Hi,

I'm working on getting my first Ethereum rig up and running and I'm getting pretty low hashrates and hoping that somebody could help me out.

Currently, I have (2) RX 580 8GB MSI Gaming X cards and I'm getting 23.xxMh/s out of each. Obviously, I'd like to be getting closer to 30Mh/s.

Out of the box, they only got about 18 or 19Mh/s, but after modding the BIOS, they're up to the 23Mh/s, but I've spent a lot of time searching and trying different things to try to improve the performance and I'm just stuck.

I downloaded the Polaris editor, clicked the "One Click Timing Patch" button and re-wrote the BIOS the cards. That's what took me from 18 or 19 to 23.

What am I missing for getting them to 29 or 30+?? I am new to modding BIOS and overclocking GPU, so if you wouldn't mind some specific instructions on how to do some of these things, I'd appreciate it. I keep reading about certain settings, but nothing really goes through the steps that you have to follow to make those changes.

Thank you very much and I appreciate any help you can offer!