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[Official] MSI GTX 680 Lightning Owners Club - Page 391

post #3901 of 7758
Quote:
Originally Posted by dph314 View Post

Quote:
Originally Posted by CL3P20 View Post

Are there any extreme coolers that would like to test benefits of memory OCP modification?

Are you talking about the contents of this thread? -> http://www.overclock.net/t/1321511/gtx-680-lightning-vgpu-mod

Not an extreme cooler here, but just curious as to what your asking about would do, and what can be done with the .zip file you posted in that thread.

 

No not talking about that thread... which was referring to a possible OCP mod for extreme users by flashing the CHiL firmware [such as GTX480]. I confirmed with MSI sources that this is not needed with Lightning series, so long as you use LN BIOS. MSI has set OCP limit to 1000A for GPUv ... effectively 'removing' OCP for the core.

 

 What I am asking in this thread is "who wants to test memory OCP mod for extreme mem voltage/speed?" tongue.gif

post #3902 of 7758
I know a few posts back power supplies and power requirements were being discussed. I haven't bought a power supply yet for my new build. Will a seasonic x-850 handle two of these in sli and CPU oc? I believe that PS is rated up to a 1000 watts. I would like to use it as it dimensions are standard size.

Thanks for any help.
post #3903 of 7758
me personaly am kicking my self in the azz for buying an 850..its rated to 930 but i still cant oc both my cards in sli past 1430mhz or i get a powerdown.
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post #3904 of 7758
Did you try plugging directly into the wall or switching outlets ? It's definitely your PS?
post #3905 of 7758
Definitely his PS...
Quote:
Originally Posted by FtW 420 View Post

I'll throw in the 2nd lightning & just test the single psu with 2 x 680, I'm running a 2600k right now but should be similar power draw to a 3770k for a whole system test.
Edit: It was a bit of a shocker, went to try with 2600k at 4.5Ghz, 2 x 680L at 1400/1752, +100mV. Got a full rig shutdown in gt1, 1080W showing on the meter. Tried cards completely stock volts & clocks (ln2 bios), pulls 756w from the wall.
OCed +100 on the core & +499 mem (1307/1752), no added volts, 820w from the wall. Added 50mV with same clock, 900w from the wall.
Only extras attached to the mobo are 2 case fans & 1 ssd. Cooling is externally powered.
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post #3906 of 7758
Quote:
Originally Posted by snitchkilla11 View Post

me personaly am kicking my self in the azz for buying an 850..its rated to 930 but i still cant oc both my cards in sli past 1430mhz or i get a powerdown.

My one overclocked LTG and rest of the system draws 700~ at load (11 fans + liquid cooling + lighting)
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post #3907 of 7758
Yes I know for a fact..first I thought I blew out my PCI slots in my board.lol but I later attached my wattage meter and anything over about 930 it powers down..I could have gotten the 1000w for 10 dollars more or 1250 for 30 more..but I had 2 670s at the time..any body need an 850w psu!!!!. J/k. But def buying a 1250..not makeleing that mistake again..I think 1000 would cut it too close with my rig. Micro center owes me some cash.thank god for there price protection guarantee..there 3770k is 229.99!!!! I payed 289 last week.
Edited by snitchkilla11 - 11/14/12 at 7:54am
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post #3908 of 7758
And here was me thinking I'd be fine on my HX850 frown.gif Although I probably wont need to overvolt mine, so hopefully I'll be alright.
    
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post #3909 of 7758
Quote:
Originally Posted by dph314 View Post

Are you talking about the contents of this thread? -> http://www.overclock.net/t/1321511/gtx-680-lightning-vgpu-mod
Not an extreme cooler here, but just curious as to what your asking about would do, and what can be done with the .zip file you posted in that thread.

It is a nice HowTo. smile.gif
But if a LTG User use a Vmod poor LTG realy Powerful, you need the MOA Bios for the LTG.
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post #3910 of 7758
I would like to know has anybody tried adjusting the memory voltage and does it make any difference?
    
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