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BIOS on an iMac?

Wano97
By Wano97
in General Discussion
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Posted

Trying to help this guy, he needs to enable his iGPU. Can he enter his BIOS on an iMac?

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Posted

AFAIK Intel mac's dont have an accessible BIOS, they use EFI (Extensible Firmware Interface).

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They've... every pc has one...

It maybe not easily accessible if not locked...

Thanks. Any idea how to enter it though?

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On a serious note, AFAIK Intel mac's dont have an accessible BIOS, they use EFI (Extensible Firmware Interface).

 

 

Ew... they use EFI, afaik they're not easily accessible, but I'll google a bit :P

I looked on some mac forums, they said that it's not accessible.

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Posted

Can I ask why the need has arisen to do this? I Thought modern iMacs had a dedicated GPU inside?

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Not at all... HD 4400/4600/Iris fever too...

 

You're right the base model doesn't have dedicated. :(

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Not at all... HD 4400/4600/Iris fever too...

This might not even be iGPU related, but some guy couldn't use quicksync on his iMac. Obviously he was running windows 8 on his imac

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As it's "like a laptop", are graphics switcheable? Couldn't he connect the display where he wants?

 

I don't know what he is trying to do, I know that on a windows machine if you have a dedicated GPU then the iGPU becomes unavailable.

 

Would be useful to know what model of iMac it is, and what's happened with it's display.

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The iMac doesn't have a BIOS or an EFI thing to switch it on.

 

If the application supports it and the hardware is capable of it; while using OSX, it will work. There's no setting it will just work.

You did say he was using Windows 8, You might need to install a quick sync driver to get that to work.

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@Wano1997 you can't get into the BIOS on macs, there is just no way to.

What model iMac is it?

I have no idea it's not mine

 

The iMac doesn't have a BIOS or an EFI thing to switch it on.

 

If the application supports it and the hardware is capable of it; while using OSX, it will work. There's no setting it will just work.

You did say he was using Windows 8, You might need to install a quick sync driver to get that to work.

Thanks I'll look for that

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Posted

That's why i posted this :P:

 

Wano1997, on 18 May 2014 - 02:07 AM, said:snapback.png

 

^

|

(sandy bridge-now)

Then trying to use iGPU just for that ._.

 

Askew, on 18 May 2014 - 02:09 AM, said:snapback.png

Well, that thing has mobile GPU... on laptops GPU and iGPU are switcheable (at least Nvidia-Intel)

Try booting and holding Command + R to boot in to the recovery section. As far as I'm aware you can't access the EFI.

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