Originally Posted by resis
I have a MSI GTX680L now (pics later). When I booted first time the fans spin like crazy and loud continuously. I don't remember if it was the nvidia or mainboard driver, but it works normal and silent now, but during the boot it still spins like insane and slows/quiets down during the process of booting. Is there a way to fix it? Perhaps a BIOS setting. I don' have time to figure it out myself at the moment, so I just ask away, if you don't mind.
Nice card, I only wish the leds were green (nvidia color, as the packaging), but blue is nice, too. Can I put them off at all?
You can take the GPU Reactor cap off, and the little board underneath it, that's about it. And the fan speed at start-up is an anti-dust technique built into the BIOS, can be gotten rid of by flashing to the...3A BIOS is it? Someone else can jump in on that.
Originally Posted by GenoOCAU
Have you maybe had a look at the litre of thermal paste MSI has used on your lightnings xoleras? A few people at OCAU have re-pasted and gotten -8 degrees on MSI's effort.
Might get you off that clock wall?
My 24/7 clocks are 1310mhz core on normal bios ~ 1.2v, been 15+ hours stable on BF3 MP.
1310 on normal BIOS? Damn. You have to try the edit on the LN2 BIOS
I tried the non-LN2 BIOS and got crazy downclocking at anything over 1300mhz.
Originally Posted by xoleras
DPH, My instability temperature threshold has been low on the lightnings, when my core temp is 70C and i'm overvolting a lot I can feel the side of my card and it is hot. I mean..HOT. Like, my top card in SLI it hurts to touch the heatpipe sometimes. The cooler does great on dispersing heat from the core and VRM but there must be other temp sensitive components i'm thinking. Thats the only explanation as to my results. I can get 1402mhz @ +100mV but maxing everything out will make it unstable at the same settings. I absolutely cannot go in and max out every voltage slider in existence, that ruins my overclocks and honestly I don't think its the best approach to air OC'ing. If anyone else has other opinions on this, please share.
I really think there are more components that suffer when volts get high, although I can't say for sure. I do know that overvolting too much
on air will always lessen stability for me, I really think past 1.3V is not meant for air and won't help things on air..... I really feel like more is not always better, you have to find a happy medium.
I don't know, thats what my findings have been. If anyone else has any overclocking particulars or oddities they've found, please share by all means
Keep in mind that this is in the context of SLI. Temps are never ever an issue with single card with the 2nd card removed. But in SLI temps are much more sensitive for GPU1. (GPU2 blows hot air directly onto GPU1)
If any other lightning SLI users can share your results and thoughts, i'd love to hear em!
Always appreciate your input
Well, memory lowers my core OC. You mean that with the core voltage at +100mv and the clock at 1402mhz, you can raise the Memory and PLL voltages while leaving the memory clock the same speed
and you'll crash? That would mean it's the temp I would assume. If so, what's the temp increase that makes you crash at? Like what's the temp threshold for your 1402mhz OC? Just curious. Trying to figure these out. Because my 570s would not crash no matter what the temp was. 10C or more would make no difference on stability. I know I have to stop comparing to another generation, but it's all I have to go on experience-wise, so if the 600-series has major differences then I have to figure them out.. But yeah if a voltage/clock combo was stable on them, then it was stable no matter what the temp. In the summer before I got my AC, temps would hit high 80Cs and not crash. After the AC, I tried higher OCs on the same volts and it made zero difference.
But yeah, thanks again for the observations