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 Post subject: Re: Dual 4K monitor PC
PostPosted: Sun Apr 27, 2014 8:58 am 
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Joined: Sun Apr 17, 2005 7:26 am
Posts: 39
Location: Denmark
Progress has been slow lately.
I'm still waiting for feedback from Asus, Gigabyte and Intel concerning support for UHD @ 60hz @ 30bit on the motherboards displayport.

While waiting I've been trying to get familiar with motherboard features and performance.
It seems that Gigabyte's VRM design is superior to Asrock and Asus and far superior to MSI when it comes to efficiency according to THIS.

Judging from the FLIR photo in the link the Gigabyte Z87X-D3H actually wipes the floor with the MSI Z87-G45 when it comes to VRM efficiency.

The new Intel Z97 chipset should be released next month according to THIS, so I might wait and see if the SATA Express and/or M.2 NGFF SSD interface is worth it. I doubt it though, considering that I'll more than likely be utilising Samsung Rapid Mode or similar to boost SSD performance.

I've received an EVGA 750 G2 PSU and have begun modifying the Antec 300 case to suit my needs.


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 Post subject: Re: Dual 4K monitor PC
PostPosted: Sun Apr 27, 2014 11:47 am 
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Joined: Thu Oct 06, 2005 4:36 am
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Location: Monterey Bay, CA
Lower VRM temps lead to better VRM efficiency..but it's just part of the power picture. The power mgmt design is a big part (as well as number of phases is proportional to idle power use), what peripheral components used are another. Here's a roundup at Hardware.info of a bunch of x87 mobos.

x97 chipset - my mantra for new chipsets is wait 3 months after intro to purchase. They ALWAYS have a bug that neccesitates a chip revision and the UEFI will have many updates in the first few months to fix bugs/tune performance.

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1080p Gaming build: i5-4670K, Mugen 4, MSI Z87-G45, MSI GTX 760 2GB Gaming, 8GB 1866 RAM, Samsung Evo 250GB, WD Red 2TB, Samsung DVD burner, Fractal Define R4, Antec True Quiet 140 (2 front + rear) case fans, Seasonic X-560. 35-40W idle, 45-55W video streaming, 170-200W WoW, 200-230W Rift, 318W stress test (Prime95 + Furmark)


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 Post subject: Re: Dual 4K monitor PC
PostPosted: Mon Apr 28, 2014 9:04 am 
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Joined: Sun Apr 17, 2005 7:26 am
Posts: 39
Location: Denmark
Well, the lower VRM temp is a result of better VRM efficiency (less energy wasted as heat).
I can only agree that lower temperature yields better semiconductor efficiency.

Your link refers to x77 mobos.

True what you say about chipset bugs, I want something that has been thoroughly tested so I'll probably go for a H87 or Z87.

I received word from Gigabyte today:
-Onboard Displayport on GA-Z87X-UD3H with F9 bios supports UHD @ 60hz @ 32-bit
-BIOS and POST screen is not visible with onboard graphics (UHD@60hz), monitor does not turn on until Windows is loaded
-NVIDIA GTX Titan Black (GV-NTITANBLKD5-6GD-B) with displayport (UHD@60hz), no problem to see BIOS and POST screen.

They failed to answer if they experienced the following issues:
- Intel driver issue causing choppy display in MST mode and Collage mode
- NVIDIA cards fail to POST 50% of the time when using DisplayPort in MST mode
..so I wrote them back.


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 Post subject: Re: Dual 4K monitor PC
PostPosted: Mon Apr 28, 2014 1:33 pm 
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Joined: Thu Oct 06, 2005 4:36 am
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Location: Monterey Bay, CA
my bad - fixed the link

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