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GTX 750 Ti mining - Page 60

post #591 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:

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?

My stock dual fan Asus card (with bios mod) was only stable at +200 memory OC.
+250 memory OC was only stable on cool days with the case door open.
But now, I am running at +400 memory OC in a poorly cooled, closed case, and hope to OC higher, after switching to a better case with more airflow.

http://www.overclock.net/t/1469814/nvidia-gtx-750ti-750-maxwell-owners-club/220#post_21961757
Edited by Partol - 3/17/14 at 10:50am
     
CPUMotherboardGraphicsRAM
Athlon II X4 750k Asus F2A85-V MSI GTX 750 Ti Team 2x2GB 
Hard DriveCoolingOSMonitor
Kingston SSD V300 120GB Zalman CNPS5X performa + Arctic MX-4 Windows 7 64-bit Asus VW222 22" LCD 1680x1050 
PowerCase
FSP 460W Foxconn TSAA-426 
CPUMotherboardGraphicsRAM
Pentium G3258 @ 4.4 GHz ~1.38Vcore ~1.9Vccin Ri... MSI H81M-P33 Asus GTX 750 Ti OC + Thermalright HR-11 backsid... Transcend 2x2GB @ 1400MHz (5-7-5-18) ~1.62V 
Hard DriveCoolingOSMonitor
Intel SSD 330 240GB ZM CNPS5X (not performa) + 120mm fan (push) Windows 7 64bit Acer GD245HQ - 1920x1080 120Hz - Nvidia 3D Vision 
PowerCaseAudio
FSP 500W Enermax Phoenix Neo + 220mm Globefan (side) Creative Titanium HD + Beyer DT 880 - 250 ohm 
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CPUMotherboardGraphicsRAM
Athlon II X4 750k Asus F2A85-V MSI GTX 750 Ti Team 2x2GB 
Hard DriveCoolingOSMonitor
Kingston SSD V300 120GB Zalman CNPS5X performa + Arctic MX-4 Windows 7 64-bit Asus VW222 22" LCD 1680x1050 
PowerCase
FSP 460W Foxconn TSAA-426 
CPUMotherboardGraphicsRAM
Pentium G3258 @ 4.4 GHz ~1.38Vcore ~1.9Vccin Ri... MSI H81M-P33 Asus GTX 750 Ti OC + Thermalright HR-11 backsid... Transcend 2x2GB @ 1400MHz (5-7-5-18) ~1.62V 
Hard DriveCoolingOSMonitor
Intel SSD 330 240GB ZM CNPS5X (not performa) + 120mm fan (push) Windows 7 64bit Acer GD245HQ - 1920x1080 120Hz - Nvidia 3D Vision 
PowerCaseAudio
FSP 500W Enermax Phoenix Neo + 220mm Globefan (side) Creative Titanium HD + Beyer DT 880 - 250 ohm 
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post #592 of 1291
Quote:
Originally Posted by rvbarton View Post

you are correct ccRicer. I just noticed that my hardware is setup as a 750 ti. I bought the 7850 from Tigerdirect, but it's being shown as a 750 ti. I'm confused now as well..

I just checked the installation driver and everything, and it is showing up as a 750ti. Any idea why that could be?

Looks like you bought a 750ti and not a 7850, should probably go check your order history on Tigerdirect.
post #593 of 1291
okay, I'm a dumba$$. I got my cards mixed up as I'm running two different computers.

I do have the EVGA GeForce GTX 750Ti Superclock w/G-SYNC Support 2GB GDDR5 128bit, Dual-Link DVI-I, HDMI, DP 1.2 Graphics Card.

as I mentioned previously, I am getting around 300k hash. Please see attached screenshot:


Edited by rvbarton - 3/17/14 at 11:03am
post #594 of 1291
Quote:
Originally Posted by rvbarton View Post

very odd. Here is what I bought:

VisionTek 900505 Radeon HD 7850 Video Card - 2048MB, GDDR5, PCI-Express 3.0 (x16), 1x Dual-Link DVI-I, 2x Mini DisplayPort, 1x HDMI, DirectX 11, Dual-Slot, CrossFireX, Eyefinity.

I'm on the phone (on hold) with Tigerdirect right now...


But the odd thing is that if this is a 750ti, I'm getting some really good hashrates, wouldn't you agree?

How did you not know what was in the package when you opened it? Was this an open-box item?
post #595 of 1291
OK guys, this is what I have at the moment, with this BIOS I'm getting over 270 Kh/s on all four cards, it runs quite stable. Next thing I'm going to try is wait and see if somebody has Gigabyte Windforce OC'd BIOS meanwhile applying extra TIM thanks to Partol. mod.zip 127k .zip file
post #596 of 1291
Quote:
Originally Posted by roadhero View Post

OK guys, this is what I have at the moment, with this BIOS I'm getting over 270 Kh/s on all four cards, it runs quite stable. Next thing I'm going to try is wait and see if somebody has Gigabyte Windforce OC'd BIOS meanwhile applying extra TIM thanks to Partol.

Let me know how the extra TIM works for you.
Which TIM are you using?

I used Kepler Bios Tweaker to undervolt and increase TDP by only one notch to 39500.
Currently, my Asus card (with bios mod) is running at 1254MHz, 1.05V, 3100 mem, 75% fan speed, 68C gpu, ~305khash/s with -H 1
next I will focus on lower gpu temperature in order to OC higher.

My stock dual-fan MSI 750 Ti (with stock bios) is running at 1268MHz, 1.056V, 3100 mem, 70% fan speed, 49C gpu, ~305khash/s with -H 1
Edited by Partol - 3/17/14 at 6:30pm
     
CPUMotherboardGraphicsRAM
Athlon II X4 750k Asus F2A85-V MSI GTX 750 Ti Team 2x2GB 
Hard DriveCoolingOSMonitor
Kingston SSD V300 120GB Zalman CNPS5X performa + Arctic MX-4 Windows 7 64-bit Asus VW222 22" LCD 1680x1050 
PowerCase
FSP 460W Foxconn TSAA-426 
CPUMotherboardGraphicsRAM
Pentium G3258 @ 4.4 GHz ~1.38Vcore ~1.9Vccin Ri... MSI H81M-P33 Asus GTX 750 Ti OC + Thermalright HR-11 backsid... Transcend 2x2GB @ 1400MHz (5-7-5-18) ~1.62V 
Hard DriveCoolingOSMonitor
Intel SSD 330 240GB ZM CNPS5X (not performa) + 120mm fan (push) Windows 7 64bit Acer GD245HQ - 1920x1080 120Hz - Nvidia 3D Vision 
PowerCaseAudio
FSP 500W Enermax Phoenix Neo + 220mm Globefan (side) Creative Titanium HD + Beyer DT 880 - 250 ohm 
  hide details  
Reply
     
CPUMotherboardGraphicsRAM
Athlon II X4 750k Asus F2A85-V MSI GTX 750 Ti Team 2x2GB 
Hard DriveCoolingOSMonitor
Kingston SSD V300 120GB Zalman CNPS5X performa + Arctic MX-4 Windows 7 64-bit Asus VW222 22" LCD 1680x1050 
PowerCase
FSP 460W Foxconn TSAA-426 
CPUMotherboardGraphicsRAM
Pentium G3258 @ 4.4 GHz ~1.38Vcore ~1.9Vccin Ri... MSI H81M-P33 Asus GTX 750 Ti OC + Thermalright HR-11 backsid... Transcend 2x2GB @ 1400MHz (5-7-5-18) ~1.62V 
Hard DriveCoolingOSMonitor
Intel SSD 330 240GB ZM CNPS5X (not performa) + 120mm fan (push) Windows 7 64bit Acer GD245HQ - 1920x1080 120Hz - Nvidia 3D Vision 
PowerCaseAudio
FSP 500W Enermax Phoenix Neo + 220mm Globefan (side) Creative Titanium HD + Beyer DT 880 - 250 ohm 
  hide details  
Reply
post #597 of 1291
Quote:
Originally Posted by dph314 View Post

Hey guys. Just had a question about these- USB 3.0 PCI riser

Reviews said people were getting the same hashrate, but I just hooked two of these up for my 750's and it brought them down from over 300khash/s to 260. Am I missing something? Same clocks, software, everything. I know USB has a much lower bandwidth, but it can't even handle 750's? Plus the only reason I gave them a try is because I saw people with much more powerful cards saying they were getting the same hashrate as without them.

Make sure you have flag with riser: -H 1
post #598 of 1291
Update for the thread...
One of my EVGA 750 Ti FTW cards shorted out within a few days of running it. May be related to BIOS power mod. Probably not, since the BIOS power modification isn't that great a difference from what they put in the stock BIOS. Either way, looks like it's time to RMA.
Edited by gfgrimm - 3/17/14 at 2:34pm
post #599 of 1291
So I have added my new KFA2 low profile card to my Gigabyte rig.

Copied my X86 Cuda folder, adjusted the bat so it was -d 1 and my original is -d 0, and ran both bats.

My Giga card runs fine as normal, but the KFA2 is running at 15% hash, only using 15% of it's power limit, but showing 99% GPU usage in Afterburner.

Any ideas?
post #600 of 1291
Have someone tried Vertcoin?

Here what I've got (~150KHs):



Used the x86 version(x64 as usual is a little bit worse) and tested all combination of the traditional parameters.
This was the set that gave me the best results: -l T10x16 -i 0 -C 2 --algo=scrypt:2048

Remember to first run without the "-l" parameter to see what autotune will suggest to you and replace my suggested value if needeed.

--algo=scrypt:2048 is what vertcoin.org says to use.

I did not use the "-H" parameter because I don't want to stress my CPU (even know if it works with this algorythm).
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