Originally Posted by Ali Man
It has dual bios man, one is voltage locked I.e. 7A, and the other is unlocked which is 8A. The volts do increase, but its not a good over clocker.
What do you mean by 8A? The 80.04.47.00.19 and 80.04.29.00.3A Lightning BIOS are locked LN2. They do supply more voltage than the default BIOS, but not as much as the unlocked ones. 80.04.28.00.3A is the most recent unlocked LN2. It will allow more voltage than the other two. That is, the slider in AB will correspond to a higher real-world voltage offset.
Originally Posted by driftingforlife
AB does not read it right.
AB 2.2.3, 3A LN2 BIOS.
Stock - 1.250
+6 - 1.258
+12 - 1.263
+18 - 1.273
+25 - 1.280
+31 - 1.285
+37 - 1.295
+43 - 1.300
+50 - 1.308
+56 - 1.313
+62 - 1.319
+68 - 1.325
+75 - 1.332
+81 - 1.338
+87 - 1.345
+93 - 1.356
Thank you. I'm grateful for that.
Originally Posted by phazers
I've got an question that is going through my mind, about my power supply i've got an OCZ StealthXStream OCZ600SXS 600W
. but I'm starting to think this power supply isn't powerfull enough based on the 12V 18A. i've heard somebody say in this thread that I need atleast 38A? is that correct? playing with the overclocking and such with voltage, on the memory for example @ 150mv, with artmoney, but get constant restart and display driver crash( well more a black screen crash)
Anyway, I'm thinking of buying a new one, based on the specifications, leaning towards an Corsair 760I but nothing is certain yet.
Everyone likes to blame the PSU. Try to refine your settings before spending heaps of money on a new one.
If I understand correctly, you're using +150mv on the memory? If so, you are seriously overvolting it. In my (admittedly limited) experience, stock or -50mv work best. I have never heard anyone say that going beyond +10mv on the mem gives any benefit. Try this and see if it helps: drop your aux to -100mv, and keep your mem at stock voltage.
550w is nvidia's published minimum for the reference 680. There will always be headroom in a spec like that. MSI does not say clearly whether the Lightning needs more. If it does, then forums would likely be full of people complaining that 600w is not enough for a single Lightning. However, it is kinda close to the minimum.