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~~The GTX 670 Overclocking Master-Guide~~ - Page 119

post #1181 of 3357
So my throttling, after testing MULTIPLE times, is because my card throttles itself when it's at 63 degrees C. Is it supposed to do that? When I read this, he said it wouldn't throttle until 70.
post #1182 of 3357
I have a reference Asus 670 GTX. I started to OC the card using the quick method. I set up everything according to the instructions and ran Heaven using an offset of 120. It went through fine. I increased the offset to 140. Heaven ran for about 5 seconds and the computer shut off. Problem is how do I get it to post back up. I turn the power supply off and on and let it sit for a minute. Then I hit the power button and it comes comes on for a second and quits. How can I get this sucker to post back up so I can change my GPU settings?

Rich
post #1183 of 3357
You might need to reset cmos, that puts everything to stock.. odd that it refuses the boot after GPU falling over from OC though.
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Just a 'puter
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post #1184 of 3357
Hi there!

Complete noob at overclocking (going to be my first time). I have a few quick questions that I'd like to know before continuing on. biggrin.gif

1) I have an ASUS GTX680 Direct-CUii GPU, but I can still follow this, except for the original clock values since the 680 is faster than the 670, right?
2) I have no idea what to look for for artifacts in Heaven... http://www.youtube.com/watch?v=V7k9aAhTSDE is this what I should be looking out for? As well as the black/white shapes that people describe?
3) How many artifacts is considered acceptable in a full Heaven run? Or is one artifact already too many? tongue.gif
4a) I heard that screwing around with the voltage is a bad thing if you're new to overclocking, like me, so I just want to clarify... In Precision X, I click "Adjust Voltage" on the left, then drag the Voltage Tuner up to 1175, then drag "Power Target" up to 159, then hit "Apply"?
4b) Can I leave the voltage/power target values adjusted permanently for gaming? Or should I revert back to the default levels?
5) Finally, is it safe to leave a GPU overclocked? I've heard conflicting opinions. Some say that it is safe to leave the increased values for everything, and some say that you should only raise values before gaming, and revert them after. Which is correct?

Thanks in advance! I know that these are probably dumb questions to most of you, but hey, we all have to start somewhere!

Edit: Is there any way to show the actual numerical values of the GPU Clock and Memory Clock in Precision X? All I can see are the two triangles that point on the speedometer-like display. frown.gif
Edited by Arbatrix - 12/23/12 at 10:10pm
post #1185 of 3357
first, welcome to ocn
to answer your questions in a 1-heap-answer:
max both voltage and power sliders. there isnt anything wrong with it and it wont hurt your card at all. it will help it not crash. if it crashes, your core clock is too high. leave them cranked. why ? tell you at the end.
artifacts are caused by memory being overclocked too far. 1 is too many in my book. 2 is acceptable for some. some people get black artifacts at the dragon scene in heaven, when the camera circles the dragon statue. i never did until i got my 2nd 670. NOW i see those black 'daggers'. usual artifacting is red or green 'sunbursts' from what ive seen and read.
to have your clocks show up in heaven, or anything else you do, open prec-x and go to the monitor tab. scroll down through the different/available items to monitor(core clock speed, memory speed, power, voltage, blah-blah) what you want/need to monitor. just make sure there is a checkmark beside it. too have it show on-screen in heaven or anything else, look at the bottom of options on monitoring tab. click the box that says, show on screen display. you have to do this for each item you want to show on screen. back up in the item list, it will say "in OSD" in the properties column if you have it checked off in the right item.


you can leave voltage and clocks and all set at your overclock because your card downclocks in 2d mode. it will still get 1.175v but that isnt a problem. the gpu can easily handle it.
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post #1186 of 3357
Thanks for the reply!

So if I see something like those blue-ish flashes that cover quite a large part of the screen, like those in the youtube video, those aren't artifacts?

I'm currently at +140 MHz for the Core Clock, and I haven't seen anything that look like sunbursts or the "daggers", like you described, but I did get 2 of those blue flashes that were seen in the Youtube video I linked. Should I bump the Clock down?
Edited by Arbatrix - 12/24/12 at 11:26am
post #1187 of 3357
ive never seen anything like that video before. looks more like a glitch or something than artifacting.

http://www.youtube.com/watch?v=WJLGBqKywUs

i only get a few bursts. nowhere near the amount this guy does. back off the mem some until they go away.

*EDIT* watched it infull screen. yeah, severe artifacting.
Edited by pc-illiterate - 12/24/12 at 2:11pm
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post #1188 of 3357
Hey i am stuck at overclocking my Gtx 670 windforce,

Core Clock 1250
Memory clock 3600

Whenever i go above those values the drivers are crashing and i get this power spike in the graph , is that anything i need to be concerned about and is there are fix for it so i can overclock further? I raised the max voltage to 1175 and power taget to 112% (this is the highest selectable value in Precision-x). Can someone help me?
post #1189 of 3357
The only was that I know if to get more headroom for overclocking with all 600 series is to unlock your voltage with a BIOS mod. Then you will have to watch your temps because at 70C it will start to thermal throttle
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post #1190 of 3357
Quote:
Originally Posted by James N View Post

Hey i am stuck at overclocking my Gtx 670 windforce,
Core Clock 1250
Memory clock 3600
Whenever i go above those values the drivers are crashing and i get this power spike in the graph , is that anything i need to be concerned about and is there are fix for it so i can overclock further? I raised the max voltage to 1175 and power taget to 112% (this is the highest selectable value in Precision-x). Can someone help me?

prec-x says max power was 260 for that spike. no you dont have more headroom. the drivers crashed because the core clock was too high.
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