RAM for MSI Z97 U3 PLUS

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RAM for MSI Z97 U3 PLUS

Postby cccc » Sun Aug 10, 2014 9:21 am

Hi

I'm looking for 32GB (4x8GB) RAM for MSI Z97 U3 PLUS motherboard.
What kind of RAM can you really recommend?
Should I buy Single or Dual Rank Memory?
Last edited by cccc on Fri Aug 15, 2014 3:58 pm, edited 1 time in total.
cccc
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Re: RAM for MSI Z97 U3 PLUS

Postby Karlsweldt » Sun Aug 10, 2014 2:38 pm

If just casual use to high-level gaming, 16 GB of system memory is overkill. If doing video editing or audio composing, then go with 16 GB.. or more. But that requires a 64-bit OS version.
For that model motherboard you noted, it has dual-channel memory configuration. Best is to have a matched pair of modules, compliant with the FSB needed for the CPU in use.
I would go with premium-grade memory, matched pair, 4 x 4 GB max for normal use.
The motherboard manufacturer has a QVL (qualified vendor list) of memory types recommended for it.
Get your CPU first, then compatible memory.
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Re: RAM for MSI Z97 U3 PLUS

Postby cccc » Mon Aug 11, 2014 8:47 am

I would like to buy this CPU:

Intel Xeon E3-1246 v3, 4x 3.50GHz, 1150, boxed (BX80646E31246V3)

and this RAM:

G.Skill TridentX DIMM Kit 16GB, DDR3-2400, CL10-12-12-31 (F3-2400C10D-16GTX)

Is this RAM OK for my motherboard?

BTW why 4 x 4 GB should be better, than 2 x 8GB?
Can you pls give some more details?
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Re: RAM for MSI Z97 U3 PLUS

Postby Karlsweldt » Mon Aug 11, 2014 3:50 pm

If you are planning on a server-type system, then yes go with a pair of 8 GB modules, for the 16 GB max. That would lessen power draw slightly, instead of using two pairs of 4 GB modules. But if for general use or intense gaming, less than half of that 16 GB would be utilized.
The older "single-density" types are no longer in use, unless the motherboard is more than 10 years old. The "double-density" design is favored today.
As to your quest.. that Xeon processor only needs DDR3-1333/1600 type modules. The DDR3-2400 modules are not in the list of recommended types for that board. Recommended is DDR3-1600 / 1866 / 2133 / 2200 / 2600 / 2800 / 3000, non-buffered, non-ECC. Set the BIOS to use the "auto" setting for memory timing, with the SPD factor as manager.
But in order to use any higher than 2 GB main system memory, the OS issue must be a 64-bit version. A 32-bit OS version can manage only about 3.5 GB of total system memory.. which must include any device cards or other memory.
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Re: RAM for MSI Z97 U3 PLUS

Postby cccc » Tue Aug 12, 2014 12:22 am

Karlsweldt wrote:As to your quest.. that Xeon processor only needs DDR3-1333/1600 type modules. The DDR3-2400 modules are not in the list of recommended types for that board. Recommended is DDR3-1600 / 1866 / 2133 / 2200 / 2600 / 2800 / 3000, non-buffered, non-ECC. Set the BIOS to use the "auto" setting for memory timing, with the SPD factor as manager.

Thx a lot, but which type of RAM can you recommend for these hardware?
MSI Z97 U3 PLUS
Intel Xeon E3-1246 v3, 4x 3.50GHz, 1150, boxed (BX80646E31246V3)

Should I buy 2600 instead of 2400?
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Re: RAM for MSI Z97 U3 PLUS

Postby Karlsweldt » Tue Aug 12, 2014 6:38 am

Here is a long listing of recommended memory types for that MSI board.
And a specs link for the Xeon E3-1246 v3, 4x 3.50GHz processor. DDR3-1333/1600 is recommended for it. Going with a higher speed, premium memory should pose no problems. But staying with recommended components is always best.
If you do plan on some over-clocking of the system, remember that there is cache memory on the CPU die. It is the limiting factor for a CPU rating. if paged faster than its maximum limit, system crashes will be very likely. Although the core itself may tolerate higher speed, the cache memory cannot. Same with main system memory.
Over-clocking the CPU and system memory is fairly common, with limits. But increasing the bus speeds of other features will result in unstable operation. Leave the data bus speeds at default settings.
As to choices for memory brands, read the reviews at Tom's Hardware and others.
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Re: RAM for MSI Z97 U3 PLUS

Postby cccc » Tue Aug 12, 2014 7:45 am

Karlsweldt wrote:The DDR3-2400 modules are not in the list of recommended types for that board. Recommended is DDR3-1600 / 1866 / 2133 / 2200 / 2600 / 2800 / 3000, non-buffered, non-ECC.

Can you pls show me a link where DDR3-2400 modules are not in the list of recommended types for MSI Z97 U3 PLUS?

Here is the compatibility list:

http://www.msi.com/support/mb/Z97_U3_PL ... port-ocmem

and there are many DDR3-2400 modules.
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Re: RAM for MSI Z97 U3 PLUS

Postby Roach412 » Tue Aug 12, 2014 1:20 pm

Yes, there are a number on the overclock compatibility list. Note the voltages, as they're different for all the 2400's.

Vendor Model DDRSpeed Chipset Voltage S/D Size DIMM
AMD AG34G2401U1S DDR3 2400 N/A 1.65V DS 4GB 4
Avexir AVD3U24001004G-2CM DDR3 2400 N/A 1.65V DS 4GB 4
Corsair CMD16GX3M4A2400C10 DDR3 2400 N/A 1.65V DS4GB 4
Corsair CMD32GX3M4A2400C10 DDR3 2400 N/A 1.65V DS8GB 4
Corsair CMD16GX3M2A2400C10 DDR3 2400 N/A 1.65V DS8GB 4
Corsair CMY16GX3M2A2400C10R DDR3 2400 N/A 1.65V DS8GB 4
G.Skill F3-19200CL8D-4GBPID DDR3 2400 N/A 1.65V DS2GB 4
G.Skill F3-19200CL11Q-16GBZHD DDR3 2400 N/A 1.65V DS4GB 4
Kingston KHX2400C11D3K4/8GXD DR3 2400 N/A 1.65V SS2GB 4
Kingston KHX24C11K4/16X DDR3 2400 N/A 1.65V DS4GB 4
Kingston KHX24C11T3K4/32X DDR3 2400 N/A 1.65V DS8GB 4
Panram PUD32400C118G2LSK DDR3 2400 N/A 1.65V DS8GB 4
Transcend TX2400KLN-8GK DDR3 2400 N/A 1.65V DS4GB 4
V-Color TD4G8C11-OC24A DDR3 2400 N/A 1.65V SS4GB 4

-Roach
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Re: RAM for MSI Z97 U3 PLUS

Postby cccc » Tue Aug 12, 2014 2:15 pm

Roach412 wrote:Yes, there are a number on the overclock compatibility list. Note the voltages, as they're different for all the 2400's.
-Roach


Thx, but is it a problem Voltage of 1.65V instead of 1.5V?
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Re: RAM for MSI Z97 U3 PLUS

Postby Karlsweldt » Tue Aug 12, 2014 3:07 pm

With the memory controller on the CPU die, a lower voltage is mandated for proper operation and memory control. Increasing the voltage beyond recommended might damage the CPU cores. Go with what is recommended. Modules that require higher than 1.5 volts may not page properly at the lower voltage. And you may void any warranty on the CPU if control voltages are too high!
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