Topic: Claymore's ZCash/BTG AMD GPU Miner v12.6 (Windows/Linux) - page 314. (Read 3839163 times)

I know a guy who tried the watercooled route just by soaking all his plugs in a slightly saline solution of water overnight to get some good marinating effect before plugging them in.

I would NOT recommend it.

Which is like saying ".......I have Fast & Furious stickers on my car, so it has an extra 400HP....."

Useless..
Put a real kill-a-watt on it and see what it really uses. 80-90watts will NOT be getting you 220Sols/sec with a 1305Mh Overclocked core and 1900 RAM.

rename your sapphire for asus ...

so, no log, no more info ?

i had 4 cards
3 asus and 1 saphire
i mining
and after some minutes
saphire stop hashing'

how i can fix that?

Yes, that's right. My gpuz shows avg 80 - 90W

At that clock, even with the -100mV, you're using a ton of power. Less profitable than running stock speed or underclocked with less power.

I'm on 16.11.5 drivers 1306 core clock, 1900 mem, -100mV 220-230 sol/s. (bios mem mod)

We will propably get that after 0.04 zec wall, when miner farms will change to something else and they will no longer prevent claymore from release next version  

You are comparing stock voltage 390 with undervolted 480. Mine 390 are undervolted -100 to -150 with the stock clock and memory (they work for weeks without crashes but the exact undervolting depends on the model; I use Trixx utility). They consume 200-210 W from the wall measured by watmeter. The whole rig with 6 390's consumes 1300 W at the peaks.

For one, an increase on Claymore miner's hashrate means difficulty goes up because everyone gets the increase. Second, yeah, if you are not paying for electricity, I can see the appeal of R9 390's. But 300 sol/s for 300 watts (ususally hashrate never gets that high...) vs ~210 sol/s for 100 watts sounds like a better deal to me. Well, mostly if someone were only building let's say, one 6-card rig. But I did make an error before. I guess when you consider not paying power, and also the additional cost of motherboards, cpu's, ram, etc, then the cost of a bigger PSU probably puts you under budget for the same hashrate... So I guess I didn't think about it all the way through.

Really it's a more like a for-fun project, to get things a bit to the extreme, although it should pretty much lower my ROI or keep it the same, not increase it (i will save the cost of 3 mobos, 3 cpus, no ram (will use 16gb on it), and the cost of about 2 psus - although an x99 mobo + cpu is a lot more expensive, it will be actually easier to resell one of those at good value than four  crappy h81 btc pro and celerons which nobody will want except at shit prices when mining will be very little profitable for most people and the markets will be full of second hand mining hardware)
I will use a 2450w psu to power the pci connectors of the 28 cards i will use (7 slots x 4 slots per spliiter, already have the psu online). Right now they are mining on 4 rigs with 7 slot mobo each. I got the server psu for $55 including shipping. and the connectors cost like $20, cables another $20 and a friend soldered them for free. so $95 for a 2450w psus is not bad. And for the risers I will use either a 2000w  computer psu or two 1200watt ones which I already have.
I am not sure how many amd gpus can windows use with the amd drivers, but I think there is no limit on linux and claymore's support 32 gpu as far as I know. Or was that 16?
The only concern would be stability, if one card crashes it could hang the whole system.
So please, if anyone has any info on more than 8 gpu on one system.. please enlighten me, what motherboard would be best?

I put the 1750 strap on the Samsung memory gpu's and 1500 strap on the Hynix with equal results!

Thank You Q_R_V !

Have a little patience , my friend

No. Going from 470 to 390/390x on a 6 card rig will require at most an extra 700W. That's a $100 PSU. If you don't think spending $200 ($100 PSU, $100 or so on GPU's) more to bump hash rate by 40%+ on free power then you shouldn't be building a rig to begin with.

Already without the latest update promising even more hash/s on 390/390x they run close to 50% higher than 470s so with NO power cost. It's a total no brainer if you are building a rig.

No. Because 500+ Sol extra on a machine with no running cost is worth adding a $100 PSU

Well, will we see 10.0 tonight?

Noob question, but how to under/over volt cards?
Do I write eg. 1100 (mV)  or -50 (mV).
Can you give me and example?
Also what value to set? My MSI & sapphire R9 390 show approx.  1100 to 1150 mV on afterburner.

Btw current config:
MSI R9 390 1110/1500, ~290 sol @ 76 deg
Sapphire 390 1100/1500,  ~290 sol @ 78 deg

Is there room for improvment?
Thx, sry for noob question

Claymore keep up the good work mate!

Intensity, timings and overclocking.
Probably you have too little power to run all what you have with high intensity. It may be PSU, cables or risers that are not good enough or even just some bad contacts. If you increase intensity, then power spikes will grow too. With highest intensity spikes can be 2x above avg. Try running only GPU0 with high intensity and see if it is stable. If yes, then GPU0 and GPU1 and so on. Then you will see how much you are missing to run all of them with high intensity. And to ease your need for power undervolt your cards. It helps too against spikes unless you go too low.

I don't think this is necessarily true. I guess without power cost, maybe. But poster above is right. Beefier power supplies etc, make costs go way up. Likewise, try finding a 390 for less than 200, even used. Lowest I got mine for was like $185 out the door, but got lucky on ebay. $200 is more typical...

Figuring that in, it costs more per hash than RX 470's... Although it may be balanced out by having to buy more motherboards, RAM, etc... But for me, where electricity still matters to some extend, the 470's massively lower w/sol would be my choice... Just for anyone wondering what the better deal *might* be in their circumstance.

Can anyone feel that new version is coming 😆?