Q: Display resolution on Imac 27 with Windows 7

Finally I have managed to install windows 7 via boot camp on my Imac 27 (late 2013). I downloaded all the drivers from the apple website and installed them successfully. However, looking at the display resolution I can't go higher then 1600 x 1200....why? I downloaded all the drivers and installed them, shouldn't I get a higher resolution? Do I have to download additional drivers?

Any help is much appreciated!

Cheers

Nic

iMac (27-inch, Late 2013), OS X Yosemite (10.10.5)

Posted on Sep 2, 2015 3:12 AM

I have this question too

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Loner T

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Remove your current Windows installation using BCA only. It will also restore your disk to a single user-visible partition. Run DU and create Free Space of the size you want Windows to be. Insert your USB and power cycle your Mac and hold the Alt/Option key. You should see two selections on the USB, Windows and EFI Boot. Select EFI Boot and point to the Free Space chunk (which is the last part after Recovery HD) and then install Windows and test.

Posted on Sep 8, 2015 5:43 AM

Q: Display resolution on Imac 27 with Windows 7

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by Loner T,

Loner T Sep 2, 2015 6:57 AM in response to Nicolas Ritter
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Sep 2, 2015 6:57 AM in response to Nicolas Ritter

Please post a screen shot of Device Manager -> Display Adapter. Please also show the current driver version installed.

Does a higher resolution work on the OS X side? What is the version of BC drivers that you have installed on W7 on 2013? Do they match Install Windows 7 and earlier on your Mac using Boot Camp - Apple Support ?
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by Nicolas Ritter,

Nicolas Ritter Sep 3, 2015 1:31 AM in response to Loner T
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Sep 3, 2015 1:31 AM in response to Loner T

Hi Loner T

Have a look at the screen shot
I downloaded the following bootcamp version for my 27 ich Imac late 2013: Boot Camp Support Software 5.1.5621 selected from the apple website for my computer. Resolution is working fine on OS X side. Any ideas?
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by Loner T,

Loner T Sep 3, 2015 4:28 AM in response to Nicolas Ritter
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Sep 3, 2015 4:28 AM in response to Nicolas Ritter

Can you please expand Display Adapters?
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by Nicolas Ritter,

Nicolas Ritter Sep 3, 2015 7:04 AM in response to Loner T
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Sep 3, 2015 7:04 AM in response to Loner T
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by Rudegar,

Rudegar Sep 3, 2015 7:32 AM in response to Nicolas Ritter
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Sep 3, 2015 7:32 AM in response to Nicolas Ritter

it says std vga adaptor which mean the correct video card driver is not installed just some generic "we know this works on all video cards in the world" driver
install the correct driver from the bootcamp zip
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by Loner T,

Loner T Sep 3, 2015 8:15 AM in response to Nicolas Ritter
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Sep 3, 2015 8:15 AM in response to Nicolas Ritter

Download drivers appropriate for your Mac from Install Windows 7 and earlier on your Mac using Boot Camp - Apple Support and If you don't see some features of your Mac in Windows - Apple Support .
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by Nicolas Ritter,

Nicolas Ritter Sep 3, 2015 1:35 PM in response to Loner T
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Sep 3, 2015 1:35 PM in response to Loner T

Isnt this exactly what I did? Based on this link I downloaded boot camp support software 5.1.5621, which is the coorect software for my mac. Why does this not work?
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by Loner T,

Loner T Sep 3, 2015 2:28 PM in response to Nicolas Ritter
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Sep 3, 2015 2:28 PM in response to Nicolas Ritter
From Boot Camp Support Software 5.1.5640, it provides support for

Post Date: Feb 11, 2014
File Size: 925.6 MB
System Requirements
MacBook Air (11-inch & 13-inch, Early 2014)
MacBook Pro (Retina, 13-inch & 15-inch, Mid 2014)
MacBook Air (11-inch & 13-inch, Mid 2013)
MacBook Pro (Retina, 13-inch & 15-inch, Late 2013)
Mac Pro (Late 2013)
iMac (21.5-inch & 27-inch, Late 2013)
Windows 7, Windows 8, and Windows 8.1, 64 bit

From Boot Camp Support Software 5.1.5621, it provides support for

Post Date: Feb 11, 2014
File Size: 924.9 MB
System Requirements
MacBook Air (11-inch & 13-inch, Mid 2011)
MacBook Air (11-inch & 13-inch, Mid 2012)
MacBook Pro (15-inch & 17-inch, Mid 2010)
MacBook Pro (13-inch, & 15-inch, Early 2011)
MacBook Pro (17-inch, Early 2011)
MacBook Pro (13-inch,15-inch & 17-inch Late 2011)
MacBook Pro (13-inch & 15-inch, Mid 2012)
MacBook Pro (Retina, Mid 2012)
MacBook Pro (Retina, 13-inch, Late 2012)
MacBook Pro (Retina, 13-inch and 15-inch, Early 2013)
Mac Pro (Early 2009)
Mac Pro (Mid 2010)
Mac Pro (Mid 2012)
Mac mini (Mid 2011)
Mac mini (Late 2012)
iMac (27-inch, Mid 2010)
iMac (21.5-inch & 27-inch, Mid 2011)
iMac (21.5-inch & 27-inch, Late 2012)
iMac (21.5-inch) Early 2013
Windows 7, Windows 8, and Windows 8.1, 64 bit

The layout of both articles lists systems, but the System Requirements are different at the bottom of the article (as shown here). You cannot use 5.1.5621, you need to use 5.1.5640.
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by Nicolas Ritter,

Nicolas Ritter Sep 4, 2015 5:22 AM in response to Loner T
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Sep 4, 2015 5:22 AM in response to Loner T

Alright, downloaded boot camp 5.1.5640 and booted into Windows 7 x64. I deleted all the drivers and installed the drivers provided by boot camp 5.1.5640. Guess what, same problem as before. The device manager also indicates the same adapter as before. Any recommendations? Where else could the problem be? Is there any way to download drivers from another website?
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by Loner T,

Loner T Sep 4, 2015 6:30 AM in response to Rudegar
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Sep 4, 2015 6:30 AM in response to Rudegar

Did you reboot?
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by Nicolas Ritter,

Nicolas Ritter Sep 4, 2015 2:45 PM in response to Loner T
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Sep 4, 2015 2:45 PM in response to Loner T

I restarted several times, booted into OS X and back to windows but nothing has changed
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by Loner T,

Loner T Sep 4, 2015 3:08 PM in response to Nicolas Ritter
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Sep 4, 2015 3:08 PM in response to Nicolas Ritter

Do you know if your Windows installation is EFI or BIOS?
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by Nicolas Ritter,

Nicolas Ritter Sep 4, 2015 8:07 PM in response to Loner T
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Sep 4, 2015 8:07 PM in response to Loner T

I dont know the diffrence between EFI and BIOS or what it even means. Is there a way to look this up?
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by Loner T,

Loner T Sep 4, 2015 8:19 PM in response to Nicolas Ritter
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Sep 4, 2015 8:19 PM in response to Nicolas Ritter
Yes. The example is form W8.1, but W7 should be similar.

You should also check the following...

The reason behind the EFI and BIOS question is how hardware is exposed to the different OSes.

If the mode is BIOS, can you run the following two procedures and check if you see any unknown devices?

Resetting the System Management Controller (SMC) on your Mac - Apple Support
How to Reset NVRAM on your Mac - Apple Support

From iMac (27-inch, Late 2013) - Technical Specifications, which of the following two GPUs do you have (you can check in About This Mac)?

Graphics
3.2GHz
NVIDIA GeForce GT 755M graphics processor with 1GB of GDDR5 memory
3.4GHz
NVIDIA GeForce GTX 775M graphics processor with 2GB of GDDR5 memory
Configurable to NVIDIA GeForce GTX 780M with 4GB of GDDR5 memory.
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