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which ram for MSi 990FXA-GD80 and FX-8350

post #1 of 6
Thread Starter 
hi everyone
i just wanna know if it is possible to run 2133mhz on this CPU and if its how can i do it
post #2 of 6
Quote:
Originally Posted by gamer35 View Post

hi everyone
i just wanna know if it is possible to run 2133mhz on this CPU and if its how can i do it

Your board supports it, and your CPU will most likely be able to run it, but does not officially support it. It only officially supports 1866mhz RAM, but depending on your luck with the silicon lottery your IMC may be able to hold it's own by operating at that frequency.
From my experience AMD CPU's work best with low frequency, tight timing memory. I personally picked up the G.Skill Trident X 2400mhz 8GB kit and even though it did not remain stable at 2400Mhz, I was able to drop the frequency to the official supported 1866mhz and with an increase in voltage 1.65v to 1.6625v I was able to get the memory stable at 1866mhz CL6-7-6-12 T1, which in theory, is faster than 2400 CL12.
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FX-8350 FX-4170 FX-6300 ASUS Crosshair V Formula  
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post #3 of 6
Here is a very popular kit for AMD FX CPUs, just look at the feedback rating:

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231571



Set CPU bus Host Frequency to 229, this will allow option for DRAM Frequency ~DDR3-2133

Set DRAM Timings

Set DRAM Voltage

Set CPU-NB Voltage around +0.15V then everything should be ready to go

Let us know how it goes

Cheers
post #4 of 6
I have the GD-80V2 , really like the board. I have pushed my 8350 to 5.5ghz + with it smile.gif.

The best performance with has been between 2000 and 2200mhz with as low a cl as the kits can manage.

I have not been able to get 2400 mhz out of my ram as of yet using the GD-80.

Pick up a good set of cl8 or cl9 1866 or 2133 mhz rated stuff and you should be fine. The gskill's the other post mentioned are a fine example.
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post #5 of 6
Quote:
Originally Posted by EaquitasAbsum View Post

Your board supports it, and your CPU will most likely be able to run it, but does not officially support it. It only officially supports 1866mhz RAM, but depending on your luck with the silicon lottery your IMC may be able to hold it's own by operating at that frequency.
From my experience AMD CPU's work best with low frequency, tight timing memory. I personally picked up the G.Skill Trident X 2400mhz 8GB kit and even though it did not remain stable at 2400Mhz, I was able to drop the frequency to the official supported 1866mhz and with an increase in voltage 1.65v to 1.6625v I was able to get the memory stable at 1866mhz CL6-7-6-12 T1, which in theory, is faster than 2400 CL12.
This is true for older AMD CPUs, but FX/APU chips likes bandwith not low timing. Bandwith mean higher speeds. I have 1866 9-9-9-24 and now I have 2133 9-11-10-24 and my PC is a little faster. The sweet spot for the FX chips is 2133.
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post #6 of 6
Quote:
Originally Posted by dixson01974 View Post

This is true for older AMD CPUs, but FX/APU chips likes bandwith not low timing. Bandwith mean higher speeds. I have 1866 9-9-9-24 and now I have 2133 9-11-10-24 and my PC is a little faster. The sweet spot for the FX chips is 2133.

Well like I said before I used a 2400 rated kit and found the sweet spot to be 1866 for my chip. I was getting blue screens and random system freezes at any higher. Besides you are not going to see much of an improvement in tweaking memory speed that isn't even supported by the CPU.
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RAMHard DriveHard DriveHard Drive
Trident X Seagate 1.5TB OCZ Vertex 4 Western Digital Green 
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ASUS 24x DVD writer/reader Hydro H70 CORE Windows Ultimate BenQ GL2450 
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K1800 Corsair 850HX Coolmaster HAF X Corsair M90 
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7.1 Channel Sony reciever 
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Team Red
(17 items)
 
Team Blue
(17 items)
 
 
CPUCPUCPUMotherboard
FX-8350 FX-4170 FX-6300 ASUS Crosshair V Formula  
GraphicsRAMHard DriveHard Drive
MSI 7970 G. Skill Trident X OCZ Vertex 4  Seagate ST1500 
Optical DriveCoolingOSMonitor
ASUS x24 DVD Writer/Reader Noctua NH-D14 Windows 7 Ultimate Dynex 24" 1080p LED 
KeyboardPowerCaseMouse
Microsft P/2 crap Corsair CX600 NZXT Phantom 410 Razer Death Adder 
Audio
7.1 Channel 700W reciever 
CPUMotherboardGraphicsGraphics
i7-3820 Rampage IV Gene MSI TwinFrozr 3 7970 Gigabyte Windforce x3 R9 280X 
RAMHard DriveHard DriveHard Drive
Trident X Seagate 1.5TB OCZ Vertex 4 Western Digital Green 
Optical DriveCoolingOSMonitor
ASUS 24x DVD writer/reader Hydro H70 CORE Windows Ultimate BenQ GL2450 
KeyboardPowerCaseMouse
K1800 Corsair 850HX Coolmaster HAF X Corsair M90 
Audio
7.1 Channel Sony reciever 
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Reply
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