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GTX 750 Ti mining - Page 54

post #531 of 1291
Quote:
Originally Posted by RavenXBR View Post

Thx for the tip.
Now that I found the best setup for my GPU, I'll start to look for the best coins to mine.

At the moment I mining LTC at CEX.IO.
They're giving x2 LTC during 7 days (now 5).

Stick to that till that promo ends, then start mining ultracoin or yacoin. thumb.gif
Watch the cudaminer thread closely, over at bitcointalk.
post #532 of 1291
I found an old, but in very good shape, 40Gb SATA 2.5" 5.400 RPM HDD from my firts PS3.
Can I use it for a rig?
post #533 of 1291
Quote:
Originally Posted by ivanlabrie View Post

Stick to that till that promo ends, then start mining ultracoin or yacoin. thumb.gif
Watch the cudaminer thread closely, over at bitcointalk.

Thank you..
Will research on that.
post #534 of 1291
Quote:
Originally Posted by RavenXBR View Post

I found an old, but in very good shape, 40Gb SATA 2.5" 5.400 RPM HDD from my firts PS3.
Can I use it for a rig?

Sure, why not?
post #535 of 1291
Quote:
Originally Posted by SwarmJAG View Post

Update, took out the junk 500 watt power supply and put in a corsair rm 1000, slapped in the 6th asus gtx 750 ti on the gigabyte 990fxa ud3 cable 1x risers. 1500 to khs no mods or overclocks. Card temps 58 to 62 Celsius 445 watts at the wall. Will attempt overclocking and bios mod again this. Weekend after I confirm it runs rock steady till Saturday.


Hi,

Can this PSU support a rig like yours?
Corsair RM650

Do it have enough cables for the 6 pin power connectors and also the powered risers? Or I don't need powered risers in this case?



Thx in advance.
post #536 of 1291
Hey Guys,

Noobie miner here in Aussieland. Got a crappy old MSI PH67A-C43 that I just bought a Gainward GTX 750 Ti (non Golden Sample) for. So far its been great. Easy 305kh/s overclock with 92 Core Clock and 475 Mem Clock and running super cool. The card doesn't have any external power connectors so its all off the PCI slot.

I'd like to add a couple more of the same cards for a ghetto but low power mining rig by routing some PCI risers out of the case. Presumably I'll need to run powered risers? Or with the cards low power requirements can I run unpowered risers?

Will something like this do the trick?




Cheers to all.
post #537 of 1291
Depends. Mainly the motherboard will affect. Does your motherboard have additional 4pin molex-connectors that power the pci-e lanes?
If you don’t have, then it is better to use powered models.
Some report that usb-risers might have some downgrading influence to hashrate, compared to traditional pci-e risers that have ribbon-cables.
But in short risers will do the trick.
If you want to save money, sell that case and the cooling of your computer will improve also. After that it is also easier to add more GPU's to your MB.
post #538 of 1291
Quote:
Originally Posted by RavenXBR View Post

Hi,

Can this PSU support a rig like yours?
Corsair RM650

Do it have enough cables for the 6 pin power connectors and also the powered risers? Or I don't need powered risers in this case?



Thx in advance.

It seems to be a good psu, even with the power target mod you'd need 500w to power the whole thing.
post #539 of 1291
Quote:
Originally Posted by Amsterdamned View Post

Hey Guys,

Noobie miner here in Aussieland. Got a crappy old MSI PH67A-C43 that I just bought a Gainward GTX 750 Ti (non Golden Sample) for. So far its been great. Easy 305kh/s overclock with 92 Core Clock and 475 Mem Clock and running super cool. The card doesn't have any external power connectors so its all off the PCI slot.

I'd like to add a couple more of the same cards for a ghetto but low power mining rig by routing some PCI risers out of the case. Presumably I'll need to run powered risers? Or with the cards low power requirements can I run unpowered risers?

Will something like this do the trick?




Cheers to all.

I'm running 6 card on ASRock H81 pro btc with 3 usb 3.0 risers + 3 unpowered ribbon risers. 1820 khs/s . Everything fine
post #540 of 1291
Running 6x Gigabyte GTX750Ti OC cards on an Asrock PRO BTC board here. Using the USB3 powered risers for all 6. I haven't modified the BIOS so the stock limit still applies. At the moment I just have +180 core and +400 mem set in MSI Afterburner (gigabyte OC Guru is limited to 5 cards...). That's 6200MHz memclock. The power limiter seems to keep the core clock in check anyway, so I don't think it's ever actually getting to +180 core. With chrome open, I'm getting *just* under 300kh/s per card.

PSU is an In Win Commander II 1200W (overkill for this, but I had one spare). It's 80+ Bronze rated so ~85% efficiency on 240V supply. Idle is 65-70W and full load is 450W. Works out to 54W of actual DC power draw for each GPU plus whatever the tiny idle amount is.
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