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GTX 750 Ti mining - Page 43

post #421 of 1291
Quote:
Originally Posted by johndrake007 View Post

Thanks guys for posting all your great mining tips!

If these GTX 750 Ti video cards run cool and draw little power can't I just just build something that will work in a standard PC case with a few extra fans?

Is it possible to build a mining PC without using risers, milk crates, zip ties, chewing gum and baling wire? smile.gif

Possible components:

4 x GTX 750 Ti video cards (EVGA 750 Ti FTW?)
1 x motherboard with 4 x PCI-E x16 slots (ASUS Z87-WS?)
1 x 750W power supply
1 x standard PC case with extra fans

Thanks in advance.

i have 4 msi tf 750 ti , on a crosshair v formula-z board, in a cm HAF X case. Still had to put one card on a riser.
post #422 of 1291
Quote:
Originally Posted by AlphaC View Post

Techpowerup also had bad memory clocks compares to the MSI one, I wonder why that is. The only explanation iven that they use the same memory (Samsung HC-03) is the longer trace due to the memory phase being on the right side of the PCB. I also believe ASUS uses UBIQ mosfets of unknown quality (no datasheets).

Could just be crappy memory routing, giving less margin for signal integrity. Could be that the power delivery is crappier than other cards...
post #423 of 1291
Is the BIOS same for 2 cards of same model? If I flash the same BIOS for both cards, will manufacturers be able to know?
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Dragonborn
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post #424 of 1291
Has anyone updated to 335.23 with a TI? I'm reading where nvidia took the +135 core limit off so you can increase it even more. Wednesday my 2 Galaxy's will be here to do some testing with.
post #425 of 1291
Quote:
Originally Posted by LiveSideways View Post

Have any of you guys used the EVGA GTX 750 SC cards? Non-TIs? I grabbed one @ $109 after rebate the other day and it's been chugging along at 255kh/s with ZERO overclocking on my end and I haven't even set any customs launch parameters for cudaminer haha.

Just wondering because it seems like the TI's are all ~$150+ and even taking into account huge OC's you're only gaining ~30-50kh/s tops.

I'm no mathematician but wouldn't that mean - The card is ~2/3 the price yet makes ~3/4 or better KH/s?

Could you please update us on your findings? Thanks!
Quote:
Originally Posted by xartic1 View Post

Has anyone updated to 335.23 with a TI? I'm reading where nvidia took the +135 core limit off so you can increase it even more. Wednesday my 2 Galaxy's will be here to do some testing with.
Quote:
Originally Posted by SwarmJAG View Post

Trying it right now I have a win7 64 and a xubuntu 64 setup. Been playing with testing xubuntu overclocking tests all day.

I managed to get an overclock of 175Mhz stable, with powered risers.
Around 1800Kh/s now smile.gif
post #426 of 1291
Quote:
Originally Posted by Freekers View Post

Could you please update us on your findings? Thanks!
Haven't messed with the card or cudaminer tags at all, still chugging along @ 252-255Kh/s dead stock. What is it you'd like me to test/try out? Happy to help in anyway I can. May go grab another one at Fry's tomorrow if Amazon still has them in stock (Pricematch thumb.gif ) .
post #427 of 1291
Quote:
Originally Posted by LiveSideways View Post

Haven't messed with the card or cudaminer tags at all, still chugging along @ 252-255Kh/s dead stock. What is it you'd like me to test/try out? Happy to help in anyway I can. May go grab another one at Fry's tomorrow if Amazon still has them in stock (Pricematch thumb.gif ) .

Thanks for your reply smile.gif

Could you try out the following for me please?

1. Try these cudaminer parameters: -l T5x24 -C 1 -i 0 -H 2
2. Measure power usage with a Kill-A-Watt?
3. Try overclocking it?

I'm thinking about building a 6x 750 setup. If my calculations are correct, you should be able to get around 1650 KH/s if overclocked at about 490 watts. That's almost the same khs / watt ratio as with the 750ti only at a lower price.

Thanks in advance!
post #428 of 1291
Is there any GTX 750 with 2gb of vram as opposed to only 1?

Getting a 1gb card means you're stuck with subpar momentum and other algo performance, only good for scrypt and we know that won't last forever.
post #429 of 1291
So anyone else having any luck with the gigabyte 990fxa ud3 motherboard? Mine is a revision 4 and I have about decided to send it back along with my 6 asus gtx 750 ti's. forget the fact that my rest results of overclocking the asus cards with and without bios mods in single card powered riser and direct on the board configurations sucked both in win 7 64bit and xubuntu 13.10. The cards at complete stock will not run stable on the board for any length of time. I ran 4 over night on risers only in the non 1x slots and some time in the night 1 died. I marked it with a sticker and moved it out of rotation and put another in its place. Fired it up and went to work. Hasn't been an hour and it looks like 2 crashed now. And this is on xubuntu. I really think either this board or the asus cards are pos.
post #430 of 1291
Quote:
Originally Posted by ivanlabrie View Post

Is there any GTX 750 with 2gb of vram as opposed to only 1?

Getting a 1gb card means you're stuck with subpar momentum and other algo performance, only good for scrypt and we know that won't last forever.

I believe there is yes.
    
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i7 3770k @ 4.7ghz 1.36v Asus P8P67 WS Revolution EVGA GTX 780 Ti Classified @ 1285mhz 1.212v EVGA GTX 780 Ti Classified @ 1285mhz 1.212v 
GraphicsGraphicsRAMHard Drive
EVGA GTX 780 Ti Classified @ 1285mhz 1.212v EVGA GTX 780 Ti Classified @ 1285mhz 1.212v 32GB Gskill 2133mhz Intel 520 60GB SSD 
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Vertex 2 240GB SSD Hitachi 2TB 7200RPM HDD External USB 3.0 3TB HDD Samsung Blu Ray Burner 
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