Main computer mining rig
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3x Sapphire 290X has been ordered :P
Gonna start off just having it on extenders stacked outside the case! cause today morning it was -5 degrees outside and im FREEZING!
Then i can take me some sweet time in regards to setting up watercooling properly
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I’d like to look at building a main computer miner, my PC just sits there most of theweek. Is it possible to have the mining program work as a screen saver and kick in automatically when idle and suspend on wake? Can mining be paused/suspended easily? I’ll admit, I’m a virgin miner, I know nothing.
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Im sure you can set up scheduler of some sort in windows for this, never tried it though.
I just shut down cgminer and start it up again when leaving computer.
However my greedy ass has started to let it be on while using it. cause i want ze money.
Gotta say, looked a bit more into the 290X series, its proper redicilouse.
They say you should have an 750W psu, yet they supply only 1x8pin and 1x6 pin power connector for it???
So this card can at max pull up to 300W+ (according to measurements during load), yet it is only supplied with a total of 225w from PSU.
The rest it gets from the mobo. Thats 75W below on ONE card! and thats the max of the mobo without extra power connector for the pci-e
So when i have 3 of these cards, I’m actually maxing the mobo on the first card, since i have an Asus Maximus Xtreme V mobo with 6pin connector for the pci-e i have enough for the second card to.
But still I’m 75W overloading the system? And they call the mobo Quad ready my ass!!!
Proper pissed off, i cancelled my order, but found out thart ALL the other 290X cards on the market has the same config with 8+6pin. so i reordered.
Gonna send Asus an mail about this so i get it black on white that their mobo doesn’t suck.
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Whaa?
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Whaa?
What don’t you understand?
I have had several burned mobs and 24 pin contacts due to overdraw of power from the pci-e slots.
Heres what happens (this is caused due to the power supply to the slots that has an overall limitation of 75w gets surppased…):
http://www.youtube.com/watch?v=1KW7y4uGgYs
Its real dirty and actually quite the fire risk. So i find it amazing that AMD sends out an 300W card, but only supply it with connectors able to handle 225w! 75watt short out of the get go!
Not to mention the manufacturers of mobos that claim to have quad gpu support, but yet don’t properly feed the slots with power to handle such an amount of cards!
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No, that’s what I don’t understand. The logic behind shipping a card that relies on the motherboard so heavily on a motherboard which is Quad ready.
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No, that’s what I don’t understand. The logic behind shipping a card that relies on the motherboard so heavily on a motherboard which is Quad ready.
Yup, its freaking impressive. And it goes for ALL the 290X versions, including the “super” models with tri-x fan. for crying out loud my 280X sapphire toxic has dual 8pin, still their 290X version has 6+8
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Don’t ask me how many ATX plugs I’ve burnt on the mobo because I’ve forgotten to power the GPU’s :-[
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Don’t ask me how many ATX plugs I’ve burnt on the mobo because I’ve forgotten to power the GPU’s :-[
Yup, and thats what pisses me off. i know exactly what happens when pushing to much power out of the pci-e slots. and i have had warranty fights before on this matter!
Still the mobo manufacturers state they support 100% quad GPU, and AMD says you need an 750W psu, but still only supply the card with support for 225w (when the card pulls 300+, measured on 290X standard edition!).
Its the end user that gets burned on this, its a big fire hazard! Not to mention how many PSU cables have gotten destroyed, its not easy to get replacement of those 24pins or those 8pin connectors!
Im gonna fire away an mail to my computer part supplier that i bought the mobo from (they denied me the last burned mobo i sent in). Gonna have them give me the thumbs up first. And if they don’t then ill require refund for it, cause its obviously not delivering what it is promising.
Soooo what they are saying is that it will support 4x 290X (since they havent specified GPUs it involves).
That means 4 x 319w, thats 94w pr card, which again is 376w needed to be supplied from the pci-e ports
So if we look at my mobo with supplied 75w connector extra on it, and that those pci-e is specified for total delivery of 75w, so thats 150w in plus.
That just leaves 226w in under demand.
That shit is gonna be in flames in NO time… need to rethink the whole think :(
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No 280x on that chart…
I’m lucky that the ATX slots I’ve burnt have been on cheap Asrock mobo’s, all my expensive Mobo’s I’ve been very careful with…
Except 1, an Asrock OC Formula bla bla, back in the day, well, not too long ago actually, I didn’t have any long riser cables so I just plugged 2 into each other like an extension cord. As soon as I powered up I just saw smoke rising from the PCIe slot on the Mobo.
Funnily enough, nothing happed to the PCIe slot except for a bit of browning where it was heating up, still works fine…
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Im so pissed off right now. Im scrapping the whole project >:(
Freaking 290X is such shit i cant even start to describe!
Out of three of those cards i figured one of em had to be DOA cause it would boot for shit.
Now i was able to install two off em and get em to 750khash each but my god this is some ustable stuff!, and its not heat issue. just randomly fuckup.
Ive deleted ALL amd drivers etc (completely removed with both auto and manually going through register etc and cleaning up the filth), tried x numbers of cgminer, which non of em works cause i only get black cgminer screen.
After some googling i found i needed to use -T cause for some bloody reason it fixed an cursor error for those using watercooling (im not even doing that atm!).
Ended up finding an custom 3.7.2 miner that i were able to get working, but as soon at cgminer saw 7xx khash it started throttling the core down to around 700 instead of 1000.
Tried overriding it with both amd catalyst center, and sapphire Trixx software, but hell no!
Soooo i figured, fuck this im just gonna try and play some games with em.
BF4 on ultra setting == 50FPS and flimering as shit, useless tbh. WTF i have 2x 290X cards in the bloody computer. Am i withnessing more DOAs?, i had 150-200FPS on my 7990 for crying out loud.
I just filled for an return of the hole shitpile. Used two freaking days mocking about with this shit. ive had enough!
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Well I’ve just had a similar weekend… Based on the numbers, I can get 4 x 290 cards on a 1500watt power supply…
I had a bunch of Silverstone PSU’s I bought with 6+2 & 6 pin Y splitters, which is what the 290’s take…
I prayed to the 4 crypto gods, tried everything, as soon as the 4th card came online I would lose video and the system hung…
So I’m sitting here with a bung of rigs with 3 x 290’s on them brooding over how n00b that is…
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Well I’ve just had a similar weekend… Based on the numbers, I can get 4 x 290 cards on a 1500watt power supply…
I had a bunch of Silverstone PSU’s I bought with 6+2 & 6 pin Y splitters, which is what the 290’s take…
I prayed to the 4 crypto gods, tried everything, as soon as the 4th card came online I would lose video and the system hung…
So I’m sitting here with a bung of rigs with 3 x 290’s on them brooding over how n00b that is…
It’s messy but I got around this issue. Flashing the 290x VBios onto the 290 worked. I don’t understand why, I’m just happy it’s working…
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I shipped both the 3x 290X and the 4x 280X to the shops.
Gonna save money and watch how bitcoin value goes, AND look at the new NVIDIA serie that is coming:)
