Asus Z77 Pro: How many displays can be used at once?

[Red Storm]

Not sure if this is the right forum for this question as I don't know if it's a motherboard matter or a CPU matter, but with the new Z77 Pro from Asus, you have 4 display options. My question is, with an IB CPU, how many displays can I power at once with the onboard Intel 4000?

 

[paperwastage]

a little reading of the manual would save you time

http://dlcdnet.asus.com/pub/ASUS/mb/LGA1155/P8Z77-V_PRO/E7198_P8Z77-V_PRO.pdf

page 67

"This motherboard comes with multiple VGA output that features desktop extension on two monitors. You can connect two monitors to any two of the onboard VGA, DVI-D, HDMI and DisplayPort ports"

 

[draza]

a little reading of the manual would save you time

http://dlcdnet.asus.com/pub/ASUS/mb/LGA1155/P8Z77-V_PRO/E7198_P8Z77-V_PRO.pdf

page 67

"This motherboard comes with multiple VGA output that features desktop extension on two monitors. You can connect two monitors to any two of the onboard VGA, DVI-D, HDMI and DisplayPort ports"

Still, with 3rd generation Intel processors (Ivy Bridge) we should be able to plug in 3 monitors at the same time (but not with 2nd gen AKA Sandy Bridge). The wording in the manual, as you quote, is rather decisive though - they simply say not more than 2, which doesn't make much sense then.

I actually asked in a separate thread if anyone has tried using 3 monitors with nothing but onboard video, no response yet.

 

[Puppies04]

Still, with 3rd generation Intel processors (Ivy Bridge) we should be able to plug in 3 monitors at the same time

Why?

 

[paperwastage]

Why?

cause
http://software.intel.com/en-us/articles/quick-reference-guide-to-intel-processor-graphics/

3rd generation Intel® Core™ processor family
Independent Digital Displays
Allows a user to connect multiple displays to the PC
3

But the mobo might not have implemented the right circuit paths to enable 3 displays... i would trust the manual more than the standard

you could email asus and ask them directly... surely their marketing & engineering team would get back to you on this

 

[draza]

Why?

Because several sources said so. For example see here, quote:

Furthermore, Intel Z77 boards support triple monitor displays off the IGP when an Ivy Bridge CPU is used.

Or here, quote:

Also notable is the ability to use three displays at once, a feature that previously required a discrete graphics card to accomplish.

Note that for Sandy only 2 monitors are supported, but for Ivy it's 3, I'm guessing this only applies to processors with Intel 3000 or 4000 graphics.

 

[ShintaiDK]

I am sure this explains it:

 

[paperwastage]

i guess it's the same reason why ATI eyefinity cards allow 2 legacy connections(DVI,HDMI,VGA) and displayport for the 3rd and higher... PLL clock limitations

but ATI still allows 2 legacy, while this limits only 1... and some ATI cards(eg Sapphire Flex) offer built in technology for 3 legacy...

I guess Intel still has some things to improve on... i guess no displayport chaining either?