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[Official] Delidded Club / Guide - Page 1675

post #16741 of 33650
Quote:
Originally Posted by dr/owned View Post

^^ That's the max that Nvidia wants. Lightnings go up to 1.38 (or it might be 1.368, can't remember exactly), because they don't use the stock pwm power controller.

If it breaks, I'll frame it, put it on the wall, and buy another biggrin.gif

More seriously, I realize I'm crossing into danger-zone with the voltages I want to run, but I accept the risks.

Fair enough thumb.gif
How do you reach 1.38 on lightnings? Can you literally just move the voltage slider up in afterburner or precisionx lol.
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post #16742 of 33650
You switch over to the LN2 BIOS (it's a switch on the PCB), then flash one of the original bios roms from the first 5000 lightnings. +100mV then corresponds to 1.36V and you're allowed to do 300% Power Limit instead of 150%. The cards idle at 1.2V and go up to 1.36 under load. You actually need a multimeter to see this, since Afterburner only shows 1.2.

I might have my story wrong, but supposedly Nvidia didn't like MSI selling cards that went higher than 1.21V, so MSI was forced to change after the first run of cards. Then Nvidia tried to limit the voltage in the drivers, so it took a couple of updates to Afterburner for them to get around that.
post #16743 of 33650
Quote:
Originally Posted by KuuFA View Post

Yea well sitting around 39 is a bit fishy lol. but I mean its fine My load temps are good just wondering lol.

Super fetch and all that jazz was disabled thanks to sean and his ssd optimizations for windows lol.

thanks though Just need to probably reapply CLU as 8 degree difference is kinda irking me.

...while 8c differential is within the typical range for cores, I would do the same...obviously 'something' is raising idle temps more than it should....hope it works out

Quote:
Originally Posted by dr/owned View Post

^^ That's the max that Nvidia wants. Lightnings go up to 1.38 (or it might be 1.368, can't remember exactly), because they don't use the stock pwm power controller.

If it breaks, I'll frame it, put it on the wall, and buy another biggrin.gif
More seriously, I realize I'm crossing into danger-zone with the voltages I want to run, but I accept the risks.

...yes - and you're right, it is your chip and your risk to take (the stuff I have done to them is not so 'normal' either)....just a quick tip: At least according to my experience, at 5.2 +, also give as much cooling to the VRM as possible as it will be pumping a lot of juice, and I find that increasing the phase frequencies to 400MHz or 500MHz helps, at least on my chip at those speeds...ditto for the DRAM phase frequencies if you run 2400MHz or faster RAM

Quote:
Originally Posted by Arm3nian View Post

Fair enough thumb.gif
How do you reach 1.38 on lightnings? Can you literally just move the voltage slider up in afterburner or precisionx lol.

...LoL I have bee looking for 4 680 Lightnings and might even have a line on a couple...I understand that there are two versions of the controlling software...the 'normal' one which lets you go up a few steps (may be 1.38, not sure), and another software that is usually not available unless you're a verified 'extreme cooler' which goes higher for LN2 benching....but it seems to be software controlled, unlike the e-Power companion cards from EVGA, or the old stand-by of soldering your cards biggrin.gif
post #16744 of 33650
^^ Oh yeah you're thinking of Afterburner Extreme which you have to jump through a ton of hoops to get them to send you a copy that's tied to YOU personally. I heard you only need that for LN2 or higher and the extra volatage above 1.36 makes no difference in max overclock for normal cooling.
post #16745 of 33650
Quote:
Originally Posted by dr/owned View Post

^^ Oh yeah you're thinking of Afterburner Extreme which you have to jump through a ton of hoops to get them to send you a copy that's tied to YOU personally. I heard you only need that for LN2 or higher and the extra volatage above 1.36 makes no difference in max overclock for normal cooling.

...that's what I was talking about... smile.gif FtW happens to have a copy of that extreme software and gave screenshots of both over the last month or so in this thread (both = 'mere mortals' vs 'verified LN2' Lightning Afterburner versions)...quite a difference...
post #16746 of 33650
So with that lightning mod a 680 can compare with a 7970 in oc, not bad. But if that 1.38 as you claim only works on lightnings then I would either get that gpu or 7970, 1.175/1.21 is a terrible limit for 670/680/690 when watercooling, you can't push them at all.
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post #16747 of 33650
Anyone near Liverpool UK who fancies de-lidding an Ivy chip for me? biggrin.gif
post #16748 of 33650
Quote:
Originally Posted by Arm3nian View Post

So with that lightning mod a 680 can compare with a 7970 in oc, not bad. But if that 1.38 as you claim only works on lightnings then I would either get that gpu or 7970, 1.175/1.21 is a terrible limit for 670/680/690 when watercooling, you can't push them at all.

Which is why everyone wants the Lightnings and they're so hard to find. They'll probably hold their value pretty well too once the 700 series comes out.
post #16749 of 33650
Quote:
Originally Posted by Arm3nian View Post

So with that lightning mod a 680 can compare with a 7970 in oc, not bad. But if that 1.38 as you claim only works on lightnings then I would either get that gpu or 7970, 1.175/1.21 is a terrible limit for 670/680/690 when watercooling, you can't push them at all.

...well, there is a lot you can do to them beyond v-mods...I find that at least at certain benches I compete in, the type of card you're running matters less >>> I'm surrounded by 680/690ies and 7970ies...this is from HWBot WorldRecords...

...I put it in a spoiler as some folks react 'differently' to it, but the point I'm trying to make is that it depends more on a given bench and drivers...Unigine tests (like Heaven) in particular seems to be quite sensitive to memory sub-systems (both main and GPU), and even then it depends if one talks about DX9, 11 etc

sonic.gif
Warning: Spoiler! (Click to show)
post #16750 of 33650
^^ Are those results current? 1241/1665 isn't that impressive for a Lightning 680. In the club on the Nvidia section, I saw people running 1400+ on the core and 2000 on the memory. One of my lightnings worked fine at 1375 core and 1400 memory. The other only works at 1225 and 1100, which kinda cripples the first one since it's SLI.
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