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GTX 750 Ti mining - Page 58

post #571 of 1291
Quote:
Originally Posted by RavenXBR View Post

My Gigabyte GV-N75TOC-2GI is doing pretty well so far.

I tested the "-b" parameter because there's an example with it inside the cudaminer README.TXT.
It worked for me.

So you're getting 60+kh on the Gigabyte card running those settings? What OS and drivers are you using?
post #572 of 1291
Quote:
Originally Posted by SR20DEN View Post

So you're getting 60+kh on the Gigabyte card running those settings? What OS and drivers are you using?

Windows 7 64 bits with last NVIDIA Driver.

Here's my results:
http://www.overclock.net/t/1468166/gtx-750-ti-mining/550#post_21955187
post #573 of 1291
A guy's claiming his 750ti has 960 cuda cores...wth?

One of these: http://www.palit.biz/palit/vgapro.php?id=2253

He posted a 400kh/s cudaminer screenshot too.
post #574 of 1291
Quote:
Originally Posted by ivanlabrie View Post

A guy's claiming his 750ti has 960 cuda cores...wth?

One of these: http://www.palit.biz/palit/vgapro.php?id=2253

He posted a 400kh/s cudaminer screenshot too.

The first reports about the 750 ti did show 960 cores and a 156mm2 die size. From that I have wondered if the current chip is a hobbled version of that, however none of the expert review/test sites have reported so. Also, GPUz reports the 750 Ti die size of 148mm2.
post #575 of 1291
Quote:
Originally Posted by SR20DEN View Post

The first reports about the 750 ti did show 960 cores and a 156mm2 die size. From that I have wondered if the current chip is a hobbled version of that, however none of the expert review/test sites have reported so. Also, GPUz reports the 750 Ti die size of 148mm2.

https://bitcointalk.org/index.php?topic=167229.msg5737700#msg5737700

Edit: nevermind, misread the screenshot. It's two 750ti's in there, doing 204kh/s each lol
Edited by ivanlabrie - 3/17/14 at 2:42am
post #576 of 1291
So I got two 750 non-ti and am getting about 260 khash and 250'ish on the other at stock settings (tweaked the config and using the CPU to hash as well). When I bump the memory clock to +400 I get the faster one to 270 khash. The core clock crashes out even with minimal OC on both so I've left that off until figuring out the voltage thing. Haven't done any stability tests yet but how do I find out the max safe voltage increase for my cards? Do you just start bumping the voltage and watch the temperatures or is there a 'safe max' for specific cards (maybe from the manufacture?) Kinda new to OC'ing graphics cards.

Also if I end up swapping the slower 750 for a 750 ti what's the general consensus on which brand is best?
post #577 of 1291
Quote:
Originally Posted by superegophobia View Post

So I got two 750 non-ti and am getting about 260 khash and 250'ish on the other at stock settings (tweaked the config and using the CPU to hash as well). When I bump the memory clock to +400 I get the faster one to 270 khash. The core clock crashes out even with minimal OC on both so I've left that off until figuring out the voltage thing. Haven't done any stability tests yet but how do I find out the max safe voltage increase for my cards? Do you just start bumping the voltage and watch the temperatures or is there a 'safe max' for specific cards (maybe from the manufacture?) Kinda new to OC'ing graphics cards.

Also if I end up swapping the slower 750 for a 750 ti what's the general consensus on which brand is best?

Neat to have quantitative results like this. For me, EVGA has been best out of Zotac, ASUS, and MSI WRT to 750 Ti models.
post #578 of 1291
Hi guys, I'm having an issue with my rig setup and cards. This is my first nVidia rig and been running it with x86 Win7. Cudaminer seems to crash when cards are either in overclocked or in stock mode, software like Afterburner, Gpu Tweak and OC Guru just crash the system. I'm pretty sure the issue is with the cards brand, these ASUS 750Ti just really suck at OC'ing - hardly breaking 280 kh/s barrier per card with a 5 card setup:

Biostar H61B, 1*PCIe 16x, 5*PCIe 1x
2Gb RAM
32 GB SSD
Celeron G1620
XFX XXX Edition 750W PSU
Win7 pro x86
5*ASUS GTX 750Ti, all on 1 to 16 powered risers (seems that the problem is here?)

The longest I've run before Cudaminer crashing is about 8hrs. Does anyone have nice Kepler bios settings I can flash or other remedy to break the 300 kh/s per card barrier on these crappy ASUS cards?
post #579 of 1291
Quote:
Originally Posted by roadhero View Post

Hi guys, I'm having an issue with my rig setup and cards. This is my first nVidia rig and been running it with x86 Win7. Cudaminer seems to crash when cards are either in overclocked or in stock mode, software like Afterburner, Gpu Tweak and OC Guru just crash the system. I'm pretty sure the issue is with the cards brand, these ASUS 750Ti just really suck at OC'ing - hardly breaking 280 kh/s barrier per card with a 5 card setup:

Biostar H61B, 1*PCIe 16x, 5*PCIe 1x
2Gb RAM
32 GB SSD
Celeron G1620
XFX XXX Edition 750W PSU
Win7 pro x86
5*ASUS GTX 750Ti, all on 1 to 16 powered risers (seems that the problem is here?)

The longest I've run before Cudaminer crashing is about 8hrs. Does anyone have nice Kepler bios settings I can flash or other remedy to break the 300 kh/s per card barrier on these crappy ASUS cards?

I have two of those...kind of gave up on them and left them stock for stability's sake. On my ToDo, is to try and get them > 270 stable...but not a huge rush to do that as I expect it to be painful. If you can figure out what entry to adjust in the voltage table in KBT--left me know, but upping the voltage may help. These cards to indeed suck for OC'ing. Sorry, I don't have more positive news. I have no problem getting ~315 kH/s from my EVGA cards on the powered x1-x16 risers.
post #580 of 1291
gfgrimm, got them running from 270 to 285 kH/s stable by modifying BIOS, will post the .rom here when I get home today. Any further OC'ing crashes drivers as I said earlier. It seems that ~+100 GPU and +400 MEM are the limits for these cards to run stable.

Also tried flashing all available BIOSes from other manufacturers, just to see if it'd work. The one and only I lack is Gigabyte's BIOS, would like to see it's settings for both Gigabyte 750Ti's they have. Can you guys please dump Gigabyte 750Ti BIOS with GPU-Z and post it here, please?

Help is greatly appreciated, I will continue to move on with ASUS as these are the only cards I have, will also share most stable configs with community soon.
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