I added a filter on intake to prevent the snow from coming in and one without for exhaust (but i want to put one on both to sorta hide the Boxfan during the winter).

I have to run them on max for the farm not to overheat. They hum like a old fridge and they barely pull any air through the filter. One is only 1 month~ old as the one before just died.

The farm get at >80C with near maxed gpu fan speed with -10C outdoor temp.

I'm currently venting with two 20" plastic crapbox, you know the box fans you get for 15-20$ at... well everywhere. I'm looking for an upgrade, because these fans vibrate like crazy but move very little air, most likely due to their horrible static pressure. (Wind blowing against basically stop these)

I mine in an appartment currently so i have to minimize low shaking vibration to not annoy the neighbors.

The only thing i can find is the Lasko b20725 20" box. I would have to import it from the US. Takes time and money. Worth it?
http://www.laskoproducts.com/20-metal-box-fan-model-b20725/

-So is there an alternative i missed that i could get better/quicker from Canada?

-In the case not, if i am to import and pay a hefty premium anyways, is there something better i can get? (Good airflow and pressure, setting with lowest noise/shaking as possible)

That's unfortunate, a new Silentarmy fork released today, which work on Linux and is faster than Claymore 4.0...

BIN. I shall await your PM.

Yeah i said to go to the altcoin section because its sorta forbidden to talk about not Bitcoin on the specifically Bitcoin section. But you'd be using GPUs.

I wouldnt even buy an ASIC with such high electric costs You're at the borderline, where even if its profitable, all your profits will go to upkeep. Better go to the altcoin section.

Because the drivers on Linux is different from the one on Windows. Alright i'm waiting to hear back from you running it on Ubuntu, thanks.

It does. ethOS support is that way ; http://ethosdistro.com/kb/#support

I doubt you got the cards hashing on Ubuntu at the same speed as Windows. Can you show me your 29mhs on Ubuntu 16.04 ?

Again, i am NOT selling this BIOS.

The RX 480s easily go higher than 31mhs, this isint what i'm showing to people. The volt mod is to be added to anyone's favorite ROM, to save power. You may have not noticed its at a mere 2200 mem?

Changing VDDC on the ROM is unrelated to the hashrate, which is dependent on the memory. I guess you probably have not realized, but there's no point in showing off the MHs, since unless you're editing memory timings (You're not), the hashrate you can get is up to the card's silicon lottery, not the user's skills.


I won't lie, but its not "ethOS" its the linux driver stack, so the -2 to -3 mhs on Linux is universal. The most i have seen/got is 29mhs on Linux and 32.5mhs on Windows (about same watts at that ratio).

We're at the mercy of AMD on that one, hopefully their linux team reach performance parity before long.

A lot of people still use ethOS for them... because setting up and managing 200 windows rig is a bit of a pain. But for a small-time hobby miner, it's understandable to edge toward a windows rig and its nice little tools.

Correct... They put Hynix(or worse) in most of the 4gb's, which perform at quite lower mem clock than the Samsung mem you can find in the 8g's...

I got a crude one, but i get 0.5MH/s~ more at same clocks vs using the existing 1625 or 1750 straps. I only know one person that daddles in making his own straps. Even more Niche.

I get 5mhs across my few rigs using it (its not world shattering), so its there more for showing off one's (Wolf0's) skills.

Maybe there's not much demand... maybe there is. I haven't seen a free bios with either the speed mod or the volt mod in.

I've done a mod for someone;



And the one i've been asked to share the most so far, for 380x;

Yeah pretty much. I PMed you.

I have been been running it for two days on several rigs. And the GPU-z value doesnt mean much, but here;




If you don't understand, it just mean you're not part of the mining game. What if, you don't use windows? What if, you want this to be on 300 Rigs?


And when you have 500 Cards, that amount to how much? We serve GPUs on ethOS in the numbers of 5 digits, and that's only a small portion of the ETH network. O.O

Hello ps_jb.

So far i've only shared/sold ROMs with difficult mods privately to farm owners. For this ROM specifically, it has mods in it i don't own, so no can do either way.

Anyhow i'm just showing off the VDDC section. I think its interesting to know what the cards can do.

P.S.; If you need a ROM for rx 480 REFERENCE, I posted one for Everyone here;
https://forum.ethereum.org/discussion/10641/a-clean-reference-rx-480-bios-mod-for-everyone

Its probably not an interesting offer but, i can give you your price, if it include shipped to Canada, after i've verified the mobo kit work. Good luck with your sale.

I used to think 480s were pretty good, when we were doing 27mhs at 165w. Now i get 31mh/130w at the wall, wow.



Shitty screen D: But you can see the important part... VDDC lowered by ~0.1v, hard modded into the BIOS. (Thanks Heliox/Wolf0)

RIP 290/390 2016.

Hello again. I didnt want to crap on your thread too much, as they call it... its just for that price you can get a used r7 370 2G. I would not pay 40$ for it, you may be able to find a buyer for 50? Anything more, might as well buy from retail and get 2-3 years warranty.

Asabeb outlined what i vaguely said pretty clearly. Even at your second asking price, retail is still cheaper. Best of luck.

You want to sell an old, obsolete card, not including shipping costs+etc for its retail price (which has free shipping) ?

Bump