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Old 04-25-2012, 07:05 AM   #1
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Default MSI Z77A-GD65 Motherboard

There has been a new article posted.

Title: MSI Z77A-GD65 Motherboard
URL: http://www.hardwaresecrets.com/artic...therboard/1535

Here is a snippet:
"The MSI Z77A-GD65 (a.k.a. MS-7751 Ver 2.1) is a mid-range socket 1155 motherboard targeted to the forthcoming "Ivy Bridge" processors (third-generation Core i3, Core i5, and Core i7 processors) and al..."

Comments on this article are welcome.

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Old 04-25-2012, 06:00 PM   #2
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Thank you for this first look.

So the Military specs is not marketing fluf and is the equal of Asus's ROG boards and better than Asus's P8 series???

I have been trying to research the new VR 12 and 12.5 specs and have found this article as Intel as far as I know has not released it to the general web.

http://www.petrovgroup.com/pdfs/Oct%...%20article.pdf

Quote:
The current Intel specification VR11.1 stipulates use of a 6-phase POL power conversion for Vcore power consisting of an analog PWM controller and discrete or integrated power stages. Intel's new VR12 specification is targeted for processors (Romley series) to be available in thirdquarter 2011. This specification, for the first time ever, stipulates the use of a digital power controller driving 4-phase power stages (integrated or discrete) for the CPU plus phase (4+1) for the new CPU chipset. Memory power is provided via a separate 1-phase POL solution.


Hence the VR12 specification represents a reduction from six to only four phases, that is, higher current per phase (45A) with total current remaining at 180A. Server board implementations typically feature one to four CPU sockets, each requiring a separate POL solution. Each powerstage features a synchronous rectification requiring two high performance power transistors-high side and low-side devices optimized for this application.




So I suppose my question is how do we find out, which parts are higher quality now that all the boards are using high quality parts such as solid caps, ferrite chokes and mosfets or DrMos???

Some boards use 8 phases and others 12-16 yet the Asus tech stated that an 8 phase system could be superior depending upon the amps generated.

And what does POL stand for???
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Old 04-26-2012, 07:18 AM   #3
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Military-class components is not marketing fluff. The components used by MSI are really superior, in particular the solid chokes (coils).

As for the rest... Now you got me... I will have to study this... Thanks for the link!
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Old 04-26-2012, 11:45 AM   #4
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The thanks goes to you for all you do to help us all understand.

I've found the Intel documents needed to understand the new specs but you have to be a member of their site. Maybe you have connections to get a copy???

http://www.intel.com/content/www/us/...?keyword=vr+12

http://www.intel.com/content/www/us/...+specification
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Old 04-27-2012, 09:21 AM   #5
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I'll see what I can do...
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Old 05-09-2012, 01:12 PM   #6
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Default Error in Memory Description

This review states:

"In order to enable the dual-channel mode, you must install two or four memory modules. On the MSI Z77A-GD65, the first and third memory sockets are black, while the second and fourth are blue. When installing two memory modules, use the black sockets."

I just received this board yesterday and the Manual says that the memory sockets are ordered 1-4, starting with the blue socket closest to the CPU. I read this review and ordered my cpu cooler and ram to accordingly. Now my giant cpu cooler fan is hitting my ram heatsink.
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Old 05-10-2012, 07:33 AM   #7
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As you can see here: http://www.hardwaresecrets.com/fulli...hp?image=44667 the first socket (the one closest to the 24-pin power connector) is black.
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Old 05-10-2012, 08:15 AM   #8
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Default Memory Description

Yes, the socket closest to the 24-pin power connector is black. But that's not socket #1. That is socket #4.

The manual states the memory socket numbers opposite from what you described. 1 is blue socket closest to cpu. 2 is the black one to the right. 3 is the other blue. 4 is the last black closest to the 24-pin power connector. The manual then states that to run dual channel, use 2 or 4 sticks of ram. If going with 2 sticks, use the blue sockets (socket #1 and 3 as you mentioned). Now when i put in my corsair vengeance memory (has the high heatsinks) my cpu cooler fan is hitting the heatsinks.
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Old 05-10-2012, 10:59 AM   #9
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I found it strange Gabe could make such a mistake so I downloaded the manual from this site:
http://www.msi.com/product/mb/Z77A-G...l#/?div=Manual

The manual I downloaded, in english, does not have written instructions instead they are images so there can be no mistake.

Dual-Channel mode Population Rule
In Dual-Channel mode, the memory modules can transmit and receive data with two
data bus channels simultaneously. Enabling Dual-Channel mode can enhance system
performance. The following illustrations explain the population rules for Dual-Channel
mode.


1
DIMM1

DIMM2
DIMM3
DIMM4



2


DIMM1

DIMM2
DIMM3
DIMM4
Important
DDR3 memory modules are not interchangeable with DDR2, and the DDR3 standard
is not backward compatible. Always install DDR3 memory modules in DDR3 DIMM
slots.
To ensure system stability, memory modules must be of the same type and density
in Dual-Channel mode.
Due to chipset resource usage, the system will only detect up to 31+ GB of memory
(not full 32 GB) when all DIMM slots have 8GB memory modules installed.



Installed

Em

Its too bad the images didn't copy from the PDF file but it shows to insert the first two sticks in slots 2 and 4. Try slots 2 and 4 to see if it works. The worst that can happen is the computer will not boot.



Last edited by Merman; 05-10-2012 at 11:07 AM.
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Old 05-10-2012, 12:43 PM   #10
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Default MSI updated their manual

Merman, thanks. I downloaded the pdf manual and saw the instructions to install the rams in sockets 2 and 4.

I did some more research and found that MSI modified their 2.x manuals to give these new recommendations for dual channel memory. The older manual, which is the one I got with the board, states that you should install the rams in sockets 1 & 3.

Thanks!
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