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GTX 750 Ti mining - Page 39

post #381 of 1291
Quote:
Originally Posted by Aurosonic View Post

Just one thing: dont forget to install inf chipset driver. With 6 powered risers there's no need to use 2 molex onboard connectors. Works fine without it.
Got absolutely zero problems with this mb. It's cheap and do it's job really well. Highly recommends.


cool, thanks I'm gonna be using Linux so drivers shouldn't be a problem for a standard h81 chipset.

I am getting mine for $99 w/ free shipping, I know that's a bit over retail but heh what isn't in the mining craze.
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post #382 of 1291
A voltage bios mod is what we need.

Anyone got any clue?
post #383 of 1291
Quote:
Originally Posted by GrimVandal View Post

A voltage bios mod is what we need.

Anyone got any clue?

Or we could do a hardware V current mod. Swap some resistors here and there....
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post #384 of 1291
no, a simple voltage bios mod is possible it seems ...

it would just be cool if someone would post which P states are to be edited ...
post #385 of 1291
@Aurosonic

what kind molex adapter you use and where did you get it?
Edited by zeljo024 - 3/9/14 at 12:47pm
post #386 of 1291
It
Quote:
Originally Posted by zeljo024 View Post

@Aurosonic

what kind molex adapter you use and where did you get it?

I've used usb 3.0 powered risers like this: http://www.ebay.com/itm/USB-3-0-Powered-PCI-E-1x-to-16x-mining-machine-enhanced-extender-riser-adapter-/171258587523
post #387 of 1291
Quote:
Originally Posted by Aurosonic View Post

It
I've used usb 3.0 powered risers like this: http://www.ebay.com/itm/USB-3-0-Powered-PCI-E-1x-to-16x-mining-machine-enhanced-extender-riser-adapter-/171258587523

I hawe 6 risers like this http://www.amazon.com/Converter-Extender-Flexible-Extension-Connector/dp/B00HB1T54S and this power supply http://www.corsair.com/en/builder-series-cx500 it has only 4 molex connectors

and I dont know how to all 6 cards and the motherboard (ASROCK H61 PRO BTC needs 2 molex) connect to power supply?
post #388 of 1291
What type of risers do you need to run 6 750 ti's on a FXA990-ud3. what are they called? I assume a few of them are the 1-16 kind, and the other are ??. How many of each would i need?
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post #389 of 1291
Quote:
Originally Posted by Krulani View Post

What type of risers do you need to run 6 750 ti's on a FXA990-ud3. what are they called? I assume a few of them are the 1-16 kind, and the other are ??. How many of each would i need?

none, because that motherboard is defective
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post #390 of 1291
First post here but I'm following that thread from the beginning,
Quote:
Originally Posted by HardwareDecoder View Post

That is very odd....... I only have 1 or 2 ribbons left at this point.

Well im not gonna deal with this crap, Ill just RMA these and order 5x of the UD5 model and if it has the same issues ill just go to the asrock 970 extreme 4's or the gigabyte 970 whatevers I have running 5 cards on 7 rigs no problem. Maybe 6 cards per mobo is just too much trouble >

Yeah I just read up the UD5 is a piece of junk too. Gonna look around for a good quality 6 slot Am3+ mobo or just do what I said above.

First post here but I'm following that thread from the beginning...
Just want share my experience with the asrock 970 extreme 4: for me there was no way to run 5 750ti at a decent hashrate.
The issues seems the 1x slots (I'm on usb riser), if I plug 3 cards (2 directly on 16x slot and one 16x to 1x riser) they work fine.
On the cudaminer thread I've posted some tests and screenshots
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