IMac 27" late 2013 run an external monitor at 4K on 60Hz?

Hey,
Not entirely sure if it is possible to do either on OSx or on a Windows Bootcamp, but is it possible to run an
external monitor at 4K at 60Hz? The graphics chip is a GT 755M but I cannot find any information regarding this matter.
Any pointers would be great thanks.

Hello JHyde01,
Thanks for using Apple Support Communities.
If you want to use a 4K display with your Mac, the displays are limited to a Maximum of 50Hz on one specific model as shown below.
You can use 4K displays and Ultra HD TVs at the following resolutions and refresh rates via the built-in HDMI port.
3840 x 2160 at 30 Hz refresh rate
4096 x 2160 at 24 Hz refresh rate (mirroring is not supported at this resolution)
With OS X Mavericks v10.9.3 or later, the following DisplayPort displays are supported at their default using single-stream transport (SST) at 30Hz.
Sharp PN-K321
ASUS PQ321Q
Dell UP2414Q
Dell UP3214Q
Panasonic TC-L65WT600
With OS X Yosemite, you can use all of the above displays as well as the following:
LG 31MU97 4K display (at 30Hz or 50Hz)
Other Mac models do support MST displays at 60Hz as shown below.
MacBook Pro (Retina, 15-inch, Late 2013, Mac Pro (Late 2013), and iMac (Retina 5K, 27-inch, Late 2014) computers also support multi-stream transport (MST) displays at 60 Hz. If you use a 60Hz MST display with the MacBook Pro (Retina, 15-inch, Late 2013) or iMac (Retina 5K, 27-inch, Late 2014), only one additional Thunderbolt display can be supported.
Using 4K displays and Ultra HD TVs with Mac computers - Apple Support
Take care,
Alex H.

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How to get new Macbook Pro Retina (late 2013) to detect external monitor via HDMI?

Hi everyone, this is my first Mac and for the most part it's been really, really wonderful.
This is my first major glitch: I cannot get it to detect my external display: It is an ASUS PA248Q, manufactured Aug 2012.
The HDMI cable according to my Amazon history is at least 1.3c from 2010, "Fanatic Digital Imperial Series Gold-Plated HDMI Cable (6 feet)".
It works with perfectly connecting an AmazonTV box to an old Samsung TV, with vivid clarity, unlike our cableTV signal.
Just in case, I have a new HDMI cable on order, which claims to be of newest standards.
The Macbook Pro Retina (late 2013) has the standard Intel Iris from the Haswell chips, as well as Nvidia GT 750M, the latter which I don't think has been used yet.
The ASUS display says: HDMI NO SIGNAL.
I have tried shutting them down and replugging the cable. I don't know what the ideal order is. The Macbook Pro is plugged into AC power, as suggested.
In System Preferences>Display, I press the Option key to select "Detect Displays" option (seriously unintuitive).
I have also tried resetting the NVRAM:
I shut the machine down. Pressed the power button, then quickly held the quadruplet: Option-Command-P-R (a double handful) and waited for the machine to chime a 2nd time. Tried to detect external display no luck.
Next, I reset the SMC:
I shut the machine down. Then I pressed Shift-Control-Option-Power for about 5 to 10s. Then I turned on the machine normally.
NVRAM & SMC steps were from an old youtube video, as the instructions I had did not explain how to do so clearly.
Please let me know if I"m doing something wrong.
Seems so exorbitant to pay $350 for Apple Care; that's a the cost for a whole new cheap laptop.
I will search the forums again. If anyone answers this, thank so much!

Hello there, willr314.
It sounds like you've covered most of the practical steps found in this Knowledge Base article:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/ht1573#1
No video or no signal, image distortion, "snow," or flickering
Check connections
When using an external display be sure to check the following:
If you're using an Apple notebook, confirm the AC power cable or adapter is securely connected to the computer and the cable providing power to the display is also secure. It is always good to have your notebook connected to AC power when an external display is in use.
Confirm display adapters are fully seated in their respective connections and that they are supported models and for the computer and display. Refer to these articles to assist you with adapter compatibility and further configuration information:
Monitor and Display Adapter Table
About Mini DisplayPort to HDMI adapters
Apple Mini DisplayPort adapters: Frequently asked questions (FAQ)
Thunderbolt ports and displays: Frequently asked questions (FAQ)
Remove all display cable extenders, KVM switches, or other like devices and retest to determine if the issue is resolved.
Try unplugging the video adapter or cable and then plug it back in.
If more than one video adapter is in use (or "daisy-chained"), troubleshoot by using only one adapter.
Example: A mini DisplayPort to DVI adapter connected to a DVI to HDMI adapter is an unsupported configuration because there is a series of adapters in use.
If available, try using a different display and or adapter (or use a different connector by using DVI instead of VGA, for instance).
Reset the system
You can reset the Mac's parameter RAM and SMC.Reset the resolutionStart by resetting the Mac's parameter RAM. If the display does not come up, was previously set to an unsupported resolution, and still results in no video:
Start up in Safe Mode.
From the Apple () menu, choose System Preferences.
Choose Displays from the View menu to open the preferences pane.
Select any resolution and refresh rate that your display supports.
Restart your computer.
The article does offer some additional links and recommendations as well:
These articles may offer additional assistance and information about displays and video adapters:
Apple Portables: How to use your computer in closed lid mode with an external display
Apple Cinema Display (30-inch DVI) has 1280 x 800 as the maximum available resolution
Mac Pro (Early 2009), Mac Pro (Mid 2010): Supported display configurations
For assistance with Retina displays, please see Frequently asked questions about using a Retina display.
If you tried all of these steps for your display and the video issues persist, contact Apple technical support or take your Apple computer to the nearest Apple Store or Apple Authorized Service Provider (AASP) for diagnosis. If you plan to visit an Apple Retail Store, make a reservation at the Genius Bar using http://www.apple.com/retail/geniusbar/ (available in some countries only).
Note: Diagnostic fees may apply for issues not covered under warranty or the AppleCare Protection Plan (APP).
Thanks for reaching out to Apple Support Communities.
Cheers,
Pedro.

4k monitor @ iMac 27 (late 2013 - 780M) @ 60Hz?

Is it possible to run a
     4k monitor
     at iMac 27 (late 2013 with NVIDIA GeForce GTX 780M)
     @ 60Hz

No. Here's the official statement of 4K support:
http://support.apple.com/kb/ht6008
Regards.

I have an imac bought late 2013, can i use it as a display for the new mac pro running windows 8 through bootcamp?

I have an imac bought late 2013, can i use it as a display for the new mac pro running windows 8 through bootcamp?

No. Target Display mode is only supported when connected to a Mac running 10.6 or later.
It cannot be used with a PC, bootcamp, gamaing console, cable box, DVR or PowerPC Mac.
http://support.apple.com/kb/ht3924

HT3986 How do I run an external monitor on a macbook pro running windows 7

How do I run an external monitor on a Macbook Pro running Windows 7

on my imac connecting a TB to dvi converter to my imac and to my 24" dell monitor was all it took
windows like osx saw the external monitor and let me clone to it or extend my desktop to it

I have an imac bought late 2013, can i use it as a display for the new mac pro? I also want to use windows 8 on it, would this work with parallels or bootcamp?

I have an imac bought late 2013, can i use it as a display for the new mac pro? I also want to use windows 8 on it, would this work with parallels or bootcamp?

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SUCCESS: Imac 27" Late-2013 Bootcamp to Windows 7

After one grueling day fighting with possibly every Bootcamp-related issue there is, I have finally installed Windows 7 on my brand new shiny iMac 27".
I have these threads to thank:
Boot Camp - Setup was unable to create a new system partition....from Windows install
1 Billion Other Threads on "Downloading Support Software"
Here's the story so far:
The first problem was Bootcamp hanging forever on 'Downloading Support Software'. This could either mean my USB wasn't formatted right, or my connection was slow period (it wasn't). Many threads advised to manually download Bootcamp 5 software instead, but they failed to explain what should I use it for. How am I supposed to run and install this, when Bootcamp Assistant can't even install Windows in the first place? I was an octopus flailing in the dark, with so many questions but so few answers, some which were clearly over-tech for me to implement.
Then, at the stroke of midnight, after combining solutions I read in many threads, I have came up with a single dummy guide which I hope is useful to everyone who's hating Bootcamp right now.
Note: This is for iMac 27" Late-2013 (Low end Spec), Yosemite OSX.
Things You Need:
1. BootCamp5.1.5640 (If you're using a different model, refer to table here.)
The idea is to "manually" download the files that Bootcamp Assistant couldn't, which is possibly why it was forever stuck on 'Downloading Support Software'. The manual part, I understood - what nobody explained, was what to do with this file after. So here was what I did:
After unzipping all the files into a single folder, I compressed them again into a DMG file, using Disk Utility. (New > Disk Image from Folder)
The file is then renamed as 'WindowsSupport.dmg". After this, go to YourMac/Library/Application Support/Bootcamp/ and drop the DMG file there. Make a backup of the Bootcamp files, as you don't want to download it again. (Thank you, Loner T, I see you everywhere, you were my saviour in this one).
2. A 8GB USB Stick or Ext Hard Drive
Here's something you should know before installing:
Windows 7: A 2.0 USB Flash Drive or HD, 2007 or earlier model. (The reason is because Windows 7 is not compatible with 3.0 USB sticks, which came out post 2008.) 8GB or higher.
Windows 8: Any 2.0/3.0 USB Flash Drive or HD, 8GB or higher. (Based on sources).
I wish someone had pointed this out to me earlier before I rushed out and bought a Kingston Traveler 3.0 USB. Le sigh. Well, now that you know, you can breathe a little easier knowing that you just saved yourself a potential issue + 4 hours of frustration. In the end, I managed to locate my sister's old HD (I used an old ext HD, 2006 model), deleted everything and will naturally apologize later.
1. REMOVE ALL USB/HD except for the one you're gonna install Windows on. Apparently, this is important as it'll avoid some glitch.
2. Open up Disk Utility, and erase/format your USB to FAT.
3. Open up Bootcamp Assistant, and check all three options. You can never skip 'Downloading Support Software' anyway.
4. BA will load, and when it hits 'DSS', it will prompt you for a confirmation to enter password. This will trigger that "WindowsSupport.dmg" file you just placed in the folder (it will disappear, and until now, I have no idea why. But apparently, it works, because for the first time, there was progress.) It sped up my download bar, although I still had to wait a bit. After a long while, it will proceed with SAVING SUPPORT SOFTWARE, and this is where you celebrate.
5. Go through the rest of the steps, and Mac will reboot, this time, with Windows Installation.
Windows Installation (Windows 7)
1. Click Install Windows Now.
2. You have the option of Upgrading Windows or Custom (Advanced) Install. Click Custom Advanced, then format Partition : Bootcamp.
3. This is where you pray : You either proceed with the rest of the installation, OR, you get stuck with 'Unable to create system partition...' Have a look at the thread above for solutions. I didn't run into any problems whatsoever.
You should be able to take it from here.
Considering that this whole process nearly made me vomit blood, I am so so happy at installing this, I think I may have been channeling my inner geek girl. HOORAY!!!
EPILOGUE: I have also successfully installed my PS3 Dual Shock Controller, and now, I'm playing a heck lot of Windows games on my Mac like a happy fangirl. It's ON!

Thank you for posting your success story and a concise guide. Glad to see another happy user.

Trying to run 2 external monitors with HDMI splitter

I'm trying to run two external monitors from my iMac using an HDMI splitter but I can only get signal to one. I've read a lot of forums saying it is not possible to run two monitors from an iMac but the two monitors can be mirrored, in fact, I would be prefer it if they were.
I've got the mini-DVI to HDMI cable running to an HDMI splitter, one end going to my 52'' Sharp Aquos tv and the other to my 21" BenQ monitor in the kitchen.
I would just like to be able to have both monitors playing the same video at the sametime, I don't understand why this would not be possible.
I'm at work so I don't have the exact specifications but I recently purchased my iMac and have the i7 processor and the Radeon 5750 graphics card so I know it's not a hardware limitation
What am I doing wrong?

I will reply to my own question just because I figured out the answer.
The Larger display has to be set to the maximum settings of the smaller display
For example: My sharp aquos has to be set to 720p BEFORE plugging in the BenQ which will not do 1080p
If you try to plug in the benQ before setting the Aquos to 720p, it will not work and you will not be able to change it after the fact.
May seem simple now, but boy did that drive me crazy for a while.

Imac i5 late 2009 running OS X 10.8.4 and can't get FireWire connection to work

I have Imac i5 late 2009 running OS X 10.8.4 and can't get FireWire connection to work with LaCie external drive. I have gone through older posts and tried with no luck power cable and holding down start button for 15 seconds and restoring power and also removing power cable waitng 10 minutes replugging power cable holding down alt command P, R keys until second beep is heard. I know that LaCie drive and cable are working, they were connnected to another iMac without issues. What options do I have left to get FireWire to work? The System Report just says
FireWire Bus:
Maximum Speed: Up to 800 Mb/sec.
Thanks for any help
CS

I did not mention in original post that when initially connected to the Firewire port the LaCie drive I can hear activity so the drive is getting power. Does this mean the Firewire port may not be physically damamged and there may be options for resetting? Are there any 3rd party software repair programs worth buying for diagnostics and repair of the FireWire port?

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I have just bought a philips 4k monitor 288p for my Mac pro and I have quite a few issues, does anyone know of a firmware upgrade to the graphics card that will solve these ?
Issues-
Crashes on boot up when connect to monitor
Using monitor is slow i.e. mouse seems to jump a bit, text takes longer to type etc.
When in 'about this mac' it shows the monitor is running at 7350 x 4500 which is mental
I have connected via Display port to mini display port and mini display port to dual link Dvi adaptor, both have the same issues.
Any fixes would be most welcome.
Thanks

It sounds like the monitor is not correctly identifying itself to the Mac. Try Page 15 of:
Mac Pro Late 2013 and Samsung 4k monitor problem
First try resetting the SMC and PRAM
Intel-based Macs: Resetting the System Management Controller (SMC)
About NVRAM and PRAM
You will only get 4K at 60 Hz via display port/mini display port.
Are you using a display port 1.2 cable?
Your monitor supports 1.2
http://www.usa.philips.com/c-p/288P6LJEB_27/brilliance-4k-ultra-hd-led-backlit-m onitor/specifications

How do i run an external monitor with my macbook and change settings so that when i close the lid the signal to the monitor is not lost and i can continue using the mac with a mouse and a wireless keyboard?

How do i run an external monitor with my macbook and change settings so that when i close the lid the signal to the monitor is not lost and i can continue using the mac with a mouse and a wireless keyboard?

No, nothing will prevent the computer from going to sleep when you close its display except third-party hacks that are designed to do exactly that. I strongly advise against using any of those, as they may interfere with successful entry into clamshell mode (and they carry other downside risks as well). Just wait until the computer is asleep (with its sleep light pulsing), then press any key on the keyboard. It sounds as though your setup is working as it's designed to do.

How do i run 2 external monitors on my mac book pro?

so im trying to run 2 external monitors off my mac book pro and was wondering how and the best way to do it?

Matrox.com has a device for that.

X230 and running 2 external monitors

Hello,
I was wondering if anyone could let me know if its possible to run 2 external monitors on the Lenovo x230.
[MONITOR 1] [laptop screen] [MONITOR 2]
MONITOR 1= connecting via mini display port to HDMI >> to monitor
MONITOR 1= connecting via VGA >> to monitor
I tried the above but I cant get it working on all 3 only - the 1 external 1 laptop screen works
Does anyone know if the X230 grahics card was designed to handle that?
Thanks
Solved!
Go to Solution.

You need a series 3 dock with 2 DP/DVI to be able to handle 2 external LCD in addition to the internal LCD.
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

Running 2 External Monitors w/ Laptop Monitor in Elitebook 8760W

I have an 8760W Elitebook w/ the AMD FirePro M5950 (FireGL V) graphics card. I am wanting to set it up so I can have 3 monitors (2 external and the onboard laptop display). I am currently connected to an HP docking station (HSTNN-I11X). The docking station has 3 display connections, DVI, VGA, & Display Port. I currently have a Samsung monitor connected to the DVI port and an LG monitor connected to the display port via display port to DVI adapter. When I go to my system properties to set up my monitors all three are shown. So I know the system is recognizing all three. When trying to extend my desktop to all three monitors I keep getting an error message on the third monitor. It says "unable to save changes". I know this computer is capable of running 5 external monitors with AMD Eyefinity software but that only recognizes 2 monitors at a time as well. What can I do to make all three of these work. I would prefer to have my desktop extended to all three as opposed to using the eyefinity setup but neither will work at this time. Also I just installed the latest driver for the card from AMDs website in hopes that it would solve my issue, nope.

Hi @Stric_IX ,
Thank you for visiting the HP Support Forums and Welcome. I have read your thread on your HP Elitebook 8760W using three or more monitors at one time. Only two monitors may be connected using VGA, DVI, or HDMI. In order to use three or more monitors, a Display Port dongle is required. Here is a document on connecting more than two monitors.
Hope this helps.
Thanks.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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What cable do I need to hook a 4 pin firewire cable into an iMac (21in late 2013)

What cable do I need to hook a 4 pin firewire cable into the back of an iMac (21in late 2013)?

One of these:
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http://store.apple.com/us/product/MD464ZM/A/apple-thunderbolt-to-firewire-adapte r

IMac 27" late 2013 run an external monitor at 4K on 60Hz?

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