ilal2ielli

I just did this bios unlock so that I could overlock my 660m and I have a couple points and questions to make. I had heard on a few posts here that we should not put our battery on lenovo dynamic graphics otherwise we would not get the 1000mhz and be stuck at 880, but the opposite was true for me, only lenovo dynamic graphics power setting kept my 660m at 1000 and the others I was stuck at 880. Any idea why?

Also, right off the bat I tried to do an overclock while playing bioshock infinite using msi afterburner, I was at a spot in the game where I get 26 fps, so I minimized to msi afterburner and did a core overclock to 1250mhz which increased my fps by 6 frames, and increase my mem speed from 2500 to 2800 only saw an increase in 1 frame. The problem is that when I did this and went back into the game after a couple minutes my computer would lock up, my driver, and the game crashed, and then I went to msi and reset to regular settings and I would be fine.

So I guess my couple questions to this is, is it even worth it to overclock the mem speed if I only see a 1 fps boost? And how come others on here claimed to do 1250 mhz core clock stable while it caused mine to crash after 2 minutes?

Thanks everyone I'm very new to the overclocking business and just trying to learn the ropes, also thanks to op for the bios unlock!

1. Typically you need to test your overclocks to make sure they are valid before expecting them to run games with stability. Download stress testing programs for the GPU such as Unigine Heaven/Valley or FutureMark 3D Mark to test stability of overclocks on core and memory.

2. Changing clocks while a game is running is not typically advised and can cause crashing issues such as what happened to you.

3. Overclocking is a your mileage may vary type of thing. Not everyone can have the same overclocks even with the same settings and be stable, this is why you test your overclocks to see what works for your system.

I have a Win7 Y580 and the flash to svl7's BIOS 2.07 was completely painless and I quickly upgrade to an Intel 6300 WiFi

(I actually ordered a 6205, but they sent me a 6300 in package labeled 6205)

HOWEVER, the graphics card's overclock doesn't seem to be working.

BIOS settings reset to default.

660m 2GB, with the latest 314.22 drivers

(the only option in the Nvidia control panel is "3D Settings")

[ATTACH=CONFIG]6767[/ATTACH]

GPU-Z's "Graphics card" tab says GPU: 1000 MHz and Memory: 1250 MHz

GPU-Z's "Sensors" tab only shows GPU: 885 MHz and Memory: 1249 MHz

GPU-Shark says 885 MHz for the GPU and 2499 MHz for the Memory

MSI Kombustor & Furmark agree with GPU-Shark

and they both display "GPU Throttling: -480 MHz"

MSI Afterburner has no effect on the GPU or Memory settings.

Any thoughts on why I'm throttled at a max GPU clock of 885 MHz and a max temp of 63 degrees?

Edit: I'd be happy to provide more information as necessary.

Are you using the Lenovo Dynamic Graphics power profile?

If not, the GPU will not clock to the higher performance profile set by SL7 in the custom video bios.

wow excellent!! all you do is replace the old card with the new one right : )?

btw did u notice significent singal increase and lower pings while gaming/speed test?

Yeah, just swapped the cards.

I didn't bother testing the stock wifi card at all, so I don't have any data on signal increase or lower pings. AFAIK, the Intel 6300 is typically better than most Atheros cards, which is what I believe came in our units.

was anyone able to get intel centrino-n 6300 working with svl7 2.07 mod?

Yes. Works flawlessly for me. I did purchase a third antenna a while back when I used the 6300 on a previous laptop.

3600mhz on the memory? is that stable?

My mistake...

I was thinking of my desktop GTX 670.

I was able to clock the memory on the GTX 660M to 2900MHZ.

Can't wait to try it this weekend! Anyone can vouch for gaming performance increase with this BIOS?!

I don't have any concrete numbers for the increase, but I was able to overclock my GTX 660M to 1200MHZ core and 3600MHZ on the memory.

That's enough for a bump in graphic options for most games to run in 1080P.

"The version of rom file isn`t newer than version of bios" I have v2.07

Originally Posted by svl7

Damn, forgot to change this... you'll need to modifiy the platform file, first line in the 'common flash' section -> change RESSEN to RESSDIS and try again.

What do we do if we already have the 5DCN40WW update installed and it won't let us update to the unlocked version of the bios?

You'll need to edit the platform.ini file.

Change "RESSEN" to "RESSDIS"

Is it safe to overclocking 660m to 1000MHz? Does it not generate to much heat?

I overclocked mine to 1200MHz and +350MHz on the memory. No problems yet, but temperatures do hit the upper 70C range.

Bios v8.00 added to the first post.

Bios v2.07 modified -> Lenovo Y580 / Y580 BIOS v2.07 - 'unlocked', no whitelist, Nvidia 660m @ 1GHz.

Both mods contain wwan / wlan whitelist removal. I tweaked it a bit more, so users with a v2.06 mod who are experiencing issues with a 3rd party wwan / wlan card should switch to the new 2.07 mod once it's online, the issues should be fixed now.

Furthermore I added some tweaks to the 660m (1GHz) and the setup comes with unlocked menus.

If you flash it please report back to confirm that everything is working as expected, would be appreciated, thanks!

Modified 2.07 bios works perfectly. Currently using an Intel 6300 WiFi card with no issues.

I did have to modify that platform.ini file as I flashed from another modified 2.07 bios that was listed earlier in the thread.