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Overvolting gtx 660 Ti via msi afterburner

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eltalegonx64

Junior Member
Three weeks after launch i purchased the MSI GTX 660 TI PE/OC. The card claims to "triple" overvolt via msi afterburner. However everytime i increase voltage, nothing happens it just stays at 1.175 volts, why?
 
eltalegonx64 said:
Three weeks after launch i purchased the MSI GTX 660 TI PE/OC. The card claims to "triple" overvolt via msi afterburner. However everytime i increase voltage, nothing happens it just stays at 1.175 volts, why?
Click to expand...

I believe they locked it in the BIOS now due to Nvidia request so you'd have to find a bios to flash.

I'm not positive but I remember reading something like this last year.
 
eltalegonx64 said:
Three weeks after launch i purchased the MSI GTX 660 TI PE/OC. The card claims to "triple" overvolt via msi afterburner. However everytime i increase voltage, nothing happens it just stays at 1.175 volts, why?
Click to expand...

If it's like the lightning, you need the original BIOS and afterburner 2.3.1 with a .cfg edit. I'm not really sure if the PE matches the overvoltage aspects of the lightning, though.
 
You opened an entire cans of worms here talking about OC and OV Kepler. First, the usual way is NOT by using Afterburner but by using a modded (unlocked) BIOS. Such unlocked BIOS open up additional voltages, up to 1.212 something V, allowing the card to "jump" higher in the Boost table.

I actually dont think that adding a few mV in Afterburner does anything. If you are rally interested in modding/OC your Kepler, look up "Kepler Bios Tweaker" and how you work with it and/or request modded BIOS - then again, i'd not recommend this for the newbie because you cannot predict stability in advance. (For example, on my Gigabyte I can increase voltages to 1.21, then it jumps to 1320 in the boost table, however, this is not stable).

In general, trying to OC/OV core clocks of ALREADY OCed cards (like PE/OC) editions will NOT be worth it since many cards hardly can get more than 45-70Mhz or so on the core until they crap out. (Usually somwhere around 1250-ish) But on the TI you can in afterburner try to increase memory to either +400 (do plenty of tests, gaming etc.) and also try +500 memory in AB and if you're lucky even get up to +580/Memory stable.
 
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flexy said:
You opened an entire cans of worms here talking about OC and OV Kepler. First, the usual way is NOT by using Afterburner but by using a modded (unlocked) BIOS. Such unlocked BIOS open up additional voltages, up to 1.212 something V, allowing the card to "jump" higher in the Boost table.

I actually dont think that adding a few mV in Afterburner does anything. If you are rally interested in modding/OC your Kepler, look up "Kepler Bios Tweaker" and how you work with it and/or request modded BIOS - then again, i'd not recommend this for the newbie because you cannot predict stability in advance. (For example, on my Gigabyte I can increase voltages to 1.21, then it jumps to 1320 in the boost table, however, this is not stable).
Click to expand...

Just FYI, all of the MSI GTX 600 cards with over voltage advertised CAN do it, but only with the original BIOS release. The MSI lightning can overvolt to 1.45V through afterburner, but you need the original LN2 BIOS and afterburner 2.3.1.

MSI are the only cards which allow this - MSI added special circuitry to their cards to circumvent the usual OV protections with kepler. Understandably, nvidia wasn't awfully pleased and MSI released updated BIOS' for all cards. But the functionality still remains. You don't need a special modded BIOS, though, not with MSI cards which support OV.

I'm just not sure if the 660 falls in that category. But the MSI lightning 680 definitely can over volt without a modded BIOS. MSI in fact still has the original BIOS available for download on their website.
 
I think it was MSI AB 2.2.3 or so that allows overvolting. (Msi 6xx)

And you need the bios from before the ban by nv.
 
wand3r3r said:
I think it was MSI AB 2.2.3 or so that allows overvolting. (Msi 6xx)

And you need the bios from before the ban by nv.
Click to expand...

Any afterburner version works, but with 2.3.1 and later versions you have to edit the .cfg for over voltage. I'm using 2.3.1 right now and over voltage works - it also worked with 3.0 beta, but that beta has some other issues.
 
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