disabling IGD in BIOS

I have an r3 with a 580M. I always run on AC power.Is it ok to disable the Internal Graphics Device in the BIOS so you're always using the 580 instead of whitelisting?

 

Of course it is. Using the unlocked version of BIOS A08 (or A04), go to (second) Advanced>Video Configuration, and change Primary Display from SG to PEG, then click on Internal Graphics Device, then IGD again and change from Enabled to Disabled. Save and exit, and you are running a 580M only setup. Works very well.

 

I think I did that a while back,disabled IGD then enabled PEG and then it wouldn't reboot. I had to remove Bios battery to put all settings back to default.

 

If so, my friend, you did it wrong. I have switched to the 580M exclusively and back to Optimus any number of times. I'm not guessing. That's how you do it, and it works perfectly every time.

 

Ok got it,thanks

 

Snake knows what he is talking about

 

no one messes with Snake Plissken!

 

I apologize if my response seemed rude. Probably was. But I'm not going to advise a course of action that will brick his notebook or hipshoot a response just to see myself post. Guess I shouldn't post at all on difficult days.

 

I'm assuming it's the same procedure for the 460M?

 

yup same exact thing

 

Awesome. Thanks for confirming!

 

thats why im here.

 

ok, got my computer working on discrete graphics only; side effect is that my backlight (screen brightness) is VERY low, at this current max screen brightness setting it is barely as bright as the lowest bright setting it used to be before disabling the igd... anyone know how to fix this?

 

That is not a normal result of using the discrete card only, at least with a 580M. I have found it necessary on occasion to reinstall the 580M display drivers after switching to discrete graphics (or back to Optimus) to smooth out any glitches resulting from the reconfiguration. You might try that (not necessary to remove all prior drivers or sweep, etc; just remove and reinstall the display driver). Best of luck.

 

I did exactly the process Revelator described in his earlier post and when I rebooted the screen was darker than usual and had an orange tint.Uninstalled and reinstalled 295.51 drivers, no change.Switched back to normal profile;SG and IGD on Auto and it's working properly.

 

Then perhaps this particular option -- using only the discrete graphics card when desired -- is beyond your control. I beg your forgiveness for suggesting that you too could enjoy benefits enjoyed by other users and wish you the greatest success in your future endeavors.

​

 

Thanks Max for your condolences And of course I forgive you.To err is human to forgive well you know the rest.

 

Fair enough, J.

 

@Wiseguy Semper fi again?

But yeah, the switching ain't as easy as it was with the 6990M. I don't understand why Nvidia can't just allow a manual switching option, as well as their automatic one

However what Rev said worked perfectly fine for me. Windows would quickly pick-up the change and install the drivers.

 

So I finally took the leap and disabled the IGD with the unlocked BIOS. While it seems to have worked, I've noticed a few things and I'm wondering if anyone else has experienced the same thing.

I've opted for a no GUI boot since it shaves a few seconds off my boot time. Since disabling the IGD I've noticed 8 teal colored dashes/dots in the upper left corner of the screen while booting up; they show up when the Windows loading logo normally comes up (screen is blank on mine).

Second thing I've noticed since disabling IGD is that when the Windows log in screen comes up, the screen will flash 3 times. I suspect this has something to do with the fact that I have an external monitor hooked up via VGA as the monitor will power up when the log in screen pops up. However this never happened when IGD was enabled.

Like I said, I'm just wondering if this is something you guys have experienced or if this is unique to my machine. Specs in my sig.

Thanks!

 

I have the 3D version so my iGPU is disable by default. Yes I have the squares on the corner of the screen. I think that's normal because I've had it since a fresh install and using No GUI Boot.

Secondly, when booting windows, it is probably using a VGA kernel allowing to display low res images such as bios and boot screens etc. Then windows actually initiates, that is when the driver kicks in. The way dGPU drivers are written, there will be some flashing before the logon screen.

You are fine mate

Wanna race boot times? Ordinary use with regular startup services, nothing disabled etc I get 9.235secs.

 

Thanks for confirming! +rep

haha...my boot times are no match for yours! Average boot time for me is just under 15 seconds
Any tips to close the gap a bit?

 

Well to check real boot times, try this:
http://www.planetsoft.org/utils/BootTimer.exe

To speed up boot times, if you are on AHCI and not RAID, uninstall Intel RST. Shaved more than a few secs off my boot time

 

Thanks! I'll rep you again when I can

I already uninstalled IRST. Was causing problems on my Agility 3 and so I didn't bother reinstalling it on the Corsair.

So I just ran into some TDR errors ( more info here). To try and resolve this I want to reinstall the nVidia drivers. Will I have to re-enable IGD before doing this?

 

Nope. Just uninstall the existing Nvidia drivers through Control Panel>Uninstall a Program and reinstall.

 

Thanks for confirming!

 

I'm sorry for necromancy on an old thread, but was anyone ever been able to fix low main display brightness using PEG mode with iGPU disabled? I tried combination of all options in BIOS and re-installing drivers numerous times, but main screen still looks like crap. I'm using 6990M on m17xR3, currently on W8 release preview. Screen looks normal with iGPU enabled, but current W8 driver from AMD does not work with iPGU enabled (gives code 10) and only way to have 6990 working is if I disable iGPU....but that gives dark screen. ANY help much appreciated.

p.s. I'm on unlocked A08