Topic: CCminer(SP-MOD) Modded NVIDIA Maxwell / Pascal kernels. - page 957. (Read 2347664 times)

...you never saw components catch fire, I think. In that moment you could see the difference if you have bad luck.

reminder to all. wooden rig or not. a fire detector in a mining room is not the worst investment.

To each his own I guess but I'm absolutely confident the wood wouldn't make any difference that aluminum would in case of major failure.

I can't take pictures at the moment but it's similar to this random picture but bigger and mine doesn't have a wood panel on the bottom: https://i.imgur.com/njJH6sT.jpg

insured or not - i think id cry ... honestly ...

#crysx

I wouldn't use wood near any electronic equipment, unless the insurance agent is a friend of yours ;-)
(In event of fire, regardless how much care you took, the insurance will not pay if they know you used wood)

Another board I am happy with is the msi gaming z97:

The bios has a card overview, so you can easily see if the card is connected properly in the bios:

i originally used a computer case with two gigabyte 7970 oc cards when i first started out ...

i looked at using wooden frames ... got scared - decided to use aluminium instead and never looked back ...

if the temp is not the issue - 'acts of God' just may be ... but then - i guess in any situation there will be an issue with something ...

dont forget - aluminium conducts electricity ... dont want any of the cards faulty for any reason - do we? ...

:| ...

#crysx

i agree with the fan garbage that gigabyte put on the cards ... the quality of the card is good - but the fans are just rubbish ... and they REFUSE to accept them for warranty returns unless you return them to the place of purchase ... some of mine were purchased privately and NOT form a shop - what then? ... their response was - return them to your place of purchase ... dumbasses ...

ribbon risers - i think we had the same batch ...

pcie splitters exist and work well in a 'few' card scenario ... you can only use more than 8 gpus with heavy modiing ...

there is a company in the USA that manufactures external gpu 'boxed' that are specialized in for mining - and connect using a usb connection with an internal board to split / multiply the number of pcie slots ... when i asked the question ( like one would of any solicitation ) 'how much' ? ... they promptly answered - 'as many as the bios allows, which in some cases is up to 12 - like the supermicro hpc server boards' ... so their external box can be daisy chained to allow for 16+ gpus - but unless you have a $900.00AUD supermicro hpc server board ( thats WITHOUT cpus and ran - which are also specialized AND expensive ) you cant run more than about 8 ( without heavy modding ) ...

as for the wooden crates ... ummm ...

...

#crysx

No, they aren't connected to anything even remotely hot. Besides, I use 65°C temp target limit on all my cards and measured pretty much every inch of the rigs with an IR gun a few times.
Even with the limit, VRMs are around 70°C which is still low considering.
I think plastic would melt way before wood catching on fire.
And these crates are big and breezy as I have plenty of space. But of course the main pro was that wood is dirt cheap unlike aluminum.

If you use this board with 6 non powered risers, it's very important to blug in the extra 2 power slots I marked in the picture. It can also be good to add a couple of cards with a 6pin power connector.

the reason i dont use them is purely because there have been a LOT of issues with these boards and the onboard power connection ...

through various forums ( uncluding the asrock one - which doesnt have much to do with the mining arena any longer ) the boards have been brought up as being a way of warming your house by means of fire rather than hot air ... apparently that if the sockets and cables supply dont get the power they require for any reason - they ignite in the worse cases ... the least cases ( which is the common one ) is that they burnout your cards or the board itself ...

if yours are running well - then kudos mate ...

i wont risk it ... not even for my little gigabyte 750ti oc lp cards ...

but thats the main reason - otherwise 'theoretically' they should run flawlessly ...

and with the 34 cable risers that i had to toss for faults - i refuse to use the cheap cable risers ... i suppose if its a couple that you have running - they wouldnt be exposed to the same heat / stress as in thefarm ... but i wont use those cables any more - only quality usb one ... if we were living close - id give you all the others that are laying here for free ... ...

#crysx

DIY wooden crates? aren't you afraid of them catching fire? :-)
I guess aluminum is a better choice.

Looking at the BIOS of that card it has an absolute maximum of 366W power consumption limit if I'm reading it correctly which aligns perfectly with a techpowerup review.
Of course that's with some crazy synthetic test like FurMark and the usual peak consumption is about 300W. But even that is a lot.

I think these bigger cards are all about scaling; they get somewhat inefficient hash per watt at full speed but get pretty great if you decrease the power target like I found with the 970 a while back (https://bitcointalksearch.org/topic/m.11636995).
With downvolting it could be much more significant but I haven't tried it. So on one hand low profit margins warrants efficiency with lower power target but then the initial card price is too much but from another point of view if the profit margins were to increase in the future pushing the cards to hash as fast as they can would be more profitable. Also, different prices; in my case with the prices I'm presented with it doesn't worth it for me to go for anything above 970s.


As much as I love Gigabyte OC cards I hate their cheap plastic toy quality fans especially on the 780 Ti's.
They don't deform in my case and they are pretty good at cooling but damn they slow down and get noisy in a few months.
Cleaning and oiling them every few months is making them as good as new... but only for a while. I don't have the same problem with any other fans.

Regarding ribbon risers, I only had terrible experience with them and I personally would never use them again - of course that just might have been a bad batch or something.
And I love that I can put my cards fairly far from each other with USB risers, keeping everything nice and breezy with DIY wooden crates. And if you buy powered USB risers in bulk they're not much more than ribbon risers.

About PCI-E splitters, someone said a while back that it would most likely require modding the BIOS to be able to handle it which is not very promising but one can dream.
While I'm at dreaming... imagine if we could connect cards with simple USB ports without PCI-E. 

Most of my risers are non powered because the asus rock board have 2 extra powerplugs on the mainboard(picture below). I have no problem to fit
6 cheap non powered china riser cables with this setup

This is the card I bought..

Instead of wasting 2 1500 watt powersupplies on one rig just add 2 980ti cards to your 750ti rigs by replacing 2 of the cards.

2x 980ti + 4x 750ti.

All my rigs are running stable on 620-1200W psu's most of them are mixed rigs of 960,970 or 980 and 750ti's, but I also have mixed AMD + NVIDIA rigs.

The 980ti was an expensive card, but I scale slowly.
No profit yet, since all my earnings is used to grow the farm.

thats nice ... but the draw seems to be huge ...

i have been looking at the gigabyte g1 gaming card ... its a beast ...

http://www.gigabyte.us/products/product-page.aspx?pid=5472#ov ...

factory oc with BETTER cooling - though the twin 8pin connector will be an issue with the psu selection ... maybe need to redesign the frame specifically for this card - as it will take two large 1500W psu ...

big issue with this is that to buy 6 of these cards in one hit is a wallet suicide - when each card sells here at almost $1200.00AUD ...

BUT - the one machine would generate more hashrate than 3 / 4 of thefarms hashrate ...

ill have to decide what needs to be done soon ... i dont want to buy one card at a time - so that doesnt leave me with many options ...

see what happens - the power draw is the main conern here ...

tanx ...

#crysx

I am happy with my card but it has 2 8 pin pci power connectors and can draw as much as 250-300W. Quark is hashing at 26,7 and x11 13 Mhash.

100% correct ...

it seems those 'windforce' setups are the worst of the culprits ...

i would pay an extra few dollars for cards that just run ... whether they bring out these things in hardened plastic or thin metal / allow to dissipate heat properly ...

i think its time to step up to a 980ti and have a look at how this thing works .. is it better? ...  and im not asking about the hashrate ...

#crysx

I agree: I was just saying that there is no difference, power related, when using a 16x slot or a 1x one.
About broken fans, I assume it's because they are not supposed to work at >40C for months :-D
The plastic parts will deform, even just fractions of millimeters, enough to stop rotate. Seen tens of times ;-)

true - but i always work off the basis that you only need to do it right once - without issue or risk at a later date - and make sure it works efficiently enough to buy you the same thing ... and better cards ...

in time - it grows itself ...

#crysx

this is true theoretically - but practically its very different ...

they ALL supply up to 75Watts via their pinout - but in reality - the strain that is put on most of the comonents via the bus is better aleviated through the powered risers ...

whe you have good quality risers - you have much less strain on the bus ...

specs dont always live up to what is on paper - and in reality - rarely do ...

hence the whole oc issues and anomolies with throttling and the like ...

i have 16 gigabye 7970 and 280x oc cards with the fan sytem shot to pieces ( and some fans are completely burned out ) even though the specs say they are capable of withstanding very high temps ... they all need to go in for warranty repair AGAIN ...

im using that just as an example of how specs can say one thing - and it doesnt hold up in a real working and production environment ...

i would luv to get my hands on a tesla farm - and hammer it to see if those cards are built better and can handle the load in extended periods ...

#crysx