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GTX 750 Ti mining - Page 13

post #121 of 1291
Quote:
Originally Posted by AlphaC View Post

It uses different settings: t4x24 as opposed to T5x24

150-250 kh/s

https://bitcointalk.org/index.php?topic=492322.0

Custompcreview got 160 kh/s
http://www.custompcreview.com/reviews/review-msi-geforce-gtx-750-gaming-1gb/20167/16/


----

also it seems GTX 750 Ti cards are good for vertcoin (~130 kh/s , stock settins)
http://www.reddit.com/r/vertcoin/comments/1zbq3y/best_vertcoin_gpus_for_the_price_buy_gtx_750s_ti/
They're supposedly getting 600CPM on Protoshares / Bitshares PTS
http://www.reddit.com/r/protoshare/comments/1zbois/best_card_for_cpm_for_dollarwatt_value_gtx_750/

Thank you smile.gif
Quote:
Originally Posted by ivanlabrie View Post

I'd stick to the ti personally...less than that and you run into the cost of the systems you need to get similar hash rates, vs the cost per card. Ratio is ideal with the 750ti imho.

Thank you smile.gif




So is this the Ti version? http://www.ebay.com/itm/231162590562

Some places say it is, and some don't.

Its appears it's not, damn false ebay advertising had me excited for a second.
Edited by killer-x - 3/2/14 at 1:20pm
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post #122 of 1291
Alright guys, I've played around with one of my Gigabyte 750TIs (GV-N75TOC-2GI) for a few days and here are my findings:
- I'm getting a stable 325 kh/s in cudaminer with an OC of +135 on the core and +635 on the memory. Pushing the memory clock any further would make cudeminer crash.

- I'm using these cudaminer arguments:
-l T5x24 -C 1 -i 0 -H 1
Any other arguments than this would yield a lower hashrate. Even a slight/subltle change such as H1 to H2 would cost me about 20kh/s.

- The chip does not get hotter than 45 degrees celcius with the fan speed at it's lowest setting (56%). It really is whisper quiet!!

- I flashed the BIOS using the instructions and zip file provided by cryptomining-blog.com. Please do not that you need to save/dump and flash the BIOS in DOS, NOT in Windows. It will _not_ work, believe me. Additionally, only use nvflash to dump the bios. GPU-Z did not dump mine properly.

- Using the 32bit version of cudaminer yields 5 kh/s more than the 64 build... Yes you read that right.

- Power usage is as follows:
Complete System Power Usage
Idle without 750TI installed: 32W
Idle with 750TI installed: 37W
Load with 750TI Installed: 115W
Idle with 750TI OC +135/+635: 37W
Load with 750TI OC +135/+635: 125W
These readings were taken from my Kill-A-Watt meter straight out of the wall.

This tells us that the 750TI alone uses:
Idle: 5W
Load: 83W
OC Idle: 5W
OC Load: 93W

I.e. a system with 6 of these cards overclocked will use 590W while mining and yields 1950 kh/s.

I'm still awaiting my Powered Risers so these results are based upon just 1 GV-N75TOC-2GI plugged straight into the 16x slot of the mainboard.
Full System Specs:
Intel Celeron G1820
ASRock H81 Pro BTC
4GB DDR3
250GB HDD
be quiet! System Power 7 700W
Windows 7 Ultimate 64-Bit
Driver Version: 334.89

I hope this helps.

Kind regards,
Freekers.
Edited by Freekers - 3/2/14 at 1:39pm
post #123 of 1291
Quote:
Originally Posted by Freekers View Post

Alright guys, I've played around with one of my Gigabyte 750TIs (GV-N75TOC-2GI) for a few days and here are my findings:
- I'm getting a stable 325 kh/s in cudaminer with an OC of +135 on the core and +635 on the memory. Pushing the memory clock any further would make cudeminer crash.

- I'm using these cudaminer arguments:
-l T5x24 -C 1 -i 0 -H 1
Any other arguments than this would yield a lower hashrate. Even a slight/subltle change such as H1 to H2 would cost me about 20kh/s.

- The chip does not get hotter than 45 degrees celcius with the fan speed at it's lowest setting (56%). It really is whisper quiet!!

- I flashed the BIOS using the instructions and zip file provided by cryptomining-blog.com. Please do not that you need to save/dump and flash the BIOS in DOS, NOT in Windows. It will _not_ work, believe me. Additionally, only use nvflash to dump the bios. GPU-Z did not dump mine properly.

- Using the 32bit version of cudaminer yields 5 kh/s more than the 64 build... Yes you read that right.

- Power usage is as follows:
Complete System Power Usage
Idle without 750TI installed: 32W
Idle with 750TI installed: 37W
Load with 750TI Installed: 115W
Idle with 750TI OC +135/+635: 37W
Load with 750TI OC +135/+635: 125W
These readings were taken from my Kill-A-Watt meter straight out of the wall.

This tells us that the 750TI alone uses:
Idle: 2W
Load: 83W
OC Idle: 2W
OC Load: 93W

I.e. a system with 6 of these cards overclocked will use 590W while mining and yields 1950 kh/s.

I'm still awaiting my Powered Risers so these results are based upon just 1 GV-N75TOC-2GI plugged straight into the 16x slot of the mainboard.
Full System Specs:
Intel Celeron G1820
ASRock H81 Pro BTC
4GB DDR3
250GB HDD
be quiet! System Power 7 700W
Windows 7 Ultimate 64-Bit
Driver Version: 334.89

I hope this helps.

Kind regards,
Freekers.

Wow, some good information there. Are you planning on flashing the card to see if you can get the power draw even lower? As in get that thing down to ~37 watts?

Nice idle power draw btw, sure beats mine of 130 watts haha.
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post #124 of 1291
Quote:
Originally Posted by killer-x View Post

Wow, some good information there. Are you planning on flashing the card to see if you can get the power draw even lower? As in get that thing down to ~37 watts?

I'm not quite sure by what you mean with flashing the card. I already flashed the BIOS of my card or am I missing something smile.gif ?
Thanks!
post #125 of 1291
Hi everyone. I am interested in starting with a multi GPU rig using only these cards and would want to know what's the best way to get started. I am already using a 7950 and 7970 for mining and know how to set those up on Linux.

What motherboard did you buy for these cards? I would want to use 4 of them in one system. If a card is connected to a PCI x1 via riser does it still need to be powered, or will the 750ti be fine with a non-powered 1x to 16x riser?
post #126 of 1291
Quote:
Originally Posted by Freekers View Post

I'm not quite sure by what you mean with flashing the card. I already flashed the BIOS of my card or am I missing something smile.gif ?
Thanks!

Ooops I missed that in your post, sorry smile.gif

I'm just wondering how these guys got their power draw down to 37 watts! http://cryptomining-blog.com/tag/geforce-gtx-750-ti-power-usage/
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post #127 of 1291
Hmm, I wonder as well. The only difference I see is that theirs does not have a 6 pin connector....
post #128 of 1291
Quote:
Originally Posted by Freekers View Post

Alright guys, I've played around with one of my Gigabyte 750TIs (GV-N75TOC-2GI) for a few days and here are my findings:
- I'm getting a stable 325 kh/s in cudaminer with an OC of +135 on the core and +635 on the memory. Pushing the memory clock any further would make cudeminer crash.

- I'm using these cudaminer arguments:
-l T5x24 -C 1 -i 0 -H 1
Any other arguments than this would yield a lower hashrate. Even a slight/subltle change such as H1 to H2 would cost me about 20kh/s.

- The chip does not get hotter than 45 degrees celcius with the fan speed at it's lowest setting (56%). It really is whisper quiet!!

- I flashed the BIOS using the instructions and zip file provided by cryptomining-blog.com. Please do not that you need to save/dump and flash the BIOS in DOS, NOT in Windows. It will _not_ work, believe me. Additionally, only use nvflash to dump the bios. GPU-Z did not dump mine properly.

- Using the 32bit version of cudaminer yields 5 kh/s more than the 64 build... Yes you read that right.

- Power usage is as follows:
Complete System Power Usage
Idle without 750TI installed: 32W
Idle with 750TI installed: 37W
Load with 750TI Installed: 115W
Idle with 750TI OC +135/+635: 37W
Load with 750TI OC +135/+635: 125W
These readings were taken from my Kill-A-Watt meter straight out of the wall.

This tells us that the 750TI alone uses:
Idle: 5W
Load: 83W
OC Idle: 5W
OC Load: 93W

I.e. a system with 6 of these cards overclocked will use 590W while mining and yields 1950 kh/s.

I'm still awaiting my Powered Risers so these results are based upon just 1 GV-N75TOC-2GI plugged straight into the 16x slot of the mainboard.
Full System Specs:
Intel Celeron G1820
ASRock H81 Pro BTC
4GB DDR3
250GB HDD
be quiet! System Power 7 700W
Windows 7 Ultimate 64-Bit
Driver Version: 334.89

I hope this helps.

Kind regards,
Freekers.

Thanks for the very informative post. I am not doubting your power use findings, but they seem to be contrary to anything i've seen. Seems you are finding alot more power usage than anyone else ? Kind of scares me to be honest I have a bunch of those gigabyte 750 ti's coming and if they do 300-330 khash with 93W that won't make them a ton better than 300W 290 doing over 900.
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post #129 of 1291
Quote:
Originally Posted by HardwareDecoder View Post

Thanks for the very informative post. I am not doubting your power use findings, but they seem to be contrary to anything i've seen. Seems you are finding alot more power usage than anyone else ? Kind of scares me to be honest I have a bunch of those gigabyte 750 ti's coming and if they do 3:D00-330 khash with 93W that won't make them a ton better than 300W 290 doing over 900.

"-H 1" Won't that have some affect on the CPU power consumption?
post #130 of 1291
Well I ordered three PNY GTX 750ti's from rakuten for $472.45 - $50 for a promo. Just gotta order some risers now!
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