It was higher, now it's 2.5%

Given the price of XMR it is time for a new miner!!!

Thank u. Do u mean he used hex editor? What really does modifying mean? How would it affect performance?

what i must write at bat file
for mining minero?

This is my 380 bat file:


I would change the clock and mem to 1050/1500 for 280x.

I have a r9 fury (-800 h/s) and r9 290 (-700 h/s) but the combined speed of both when the miner reports in blue text is only 1383. Is that correct? Also it seems like the default hashcount for the fury is a bit high? My fury is using almost all 4 gb of ram it has. Whats the optimal hashcount setting for a r9 fury?

thanks!

How to get monero wallet? poleniex or monero.org?

Download official wallet here:
https://getmonero.org/downloads/

Or use the beta GUI:
https://getmonero.org/2016/12/22/monero-core-gui-beta-released.html

Most likely something like Polaris Bios Editor. This allows you to load your GPU's bios setting and modifying. The "Strap-1500" method that people talk about is copying the long string of numbers under 1500 timing and pasting them over the existing values for the higher speeds then saving that nd flashing your GPUs with it.  BUT... timings are only 1 field of many in this bios editor, so yes, he has likely made changes to other fields to achieve the extra speed.

The other thing to be aware of is that mining is not 100% about speed.  Most smart miners work to achieve the best possible speed per watt ratio. There may be some exceptions to this but for the most part, you will make more profit by fine-tuning your rigs to get the best ratio, which won't necessarily be the highest speed.

Furthermore... yes, when you hear someone talk about a "custom mod" and they don't volunteer any further info, then it is very likely that they simply don't feel like sharing what likely took them many hours to figure out for free. Nothing wrong with this IMO but you will find others in this forum who don't mind sharing their settings and such.  Bottom line, you can drive yourself crazy trying to match the speed of others. There are so many factors involved and sometimes you can have the exact same hardware and setting but still not match someone elses speed (maybe you got a bad batch of GPUs or they got an exceptionally good one, etc, etc).

My recommendation would be to mod your cards with the well-known/tested method first and that will get you most of the way there.  If you have the gumption, you can play around with settings, bios, etc but be forewarned that it can cause tons of downtime and messing with bios could brick your card, especially if you are experimenting.  You have to ask yourself if it's worth it.  If you are already getting like 700 and maybe could get to 750 but trying to get there causes days of downtime and possibly bricks 1 or more of your GPUs, you could make a very good argument that the extra 50 likely isn't worth it.  But of course, everyone has their own thresshold for things like this, so good luck with yours .