Cmp16gx3m4x1600c7 / m5a99x_evo_r2

After countless trips to the store vendor, that sold me memory meant for intel, I'm stuck with atleast trying to optimize mine. Here are my system specs:

Motherboard

ASUS M5A99X EVO R2.0

Processor

AMD FX-8320

Memory ( )

CMP16GX3M4X1600C7

Video Card # 1

Gigabyte GeForce GTX 770

Hard Drive #

OCZ-VERTEX3 256

I have tried editing timings for 9-9-9-24, but confused with how XMP timing etc are working as intended. This is my first post, so not sure about posting images or system specs. But here is cpu-z report for DIMM timings and a html link to system specs.

http://www.sandholl.is/specs/systemspecs.png

http://www.sandholl.is/specs/PANIKK.html

Subnote: I'm aware of 1033/1333 so I'm not aiming for 1600 or major overclocking (that will come later) I set everything back to default including cpu etc, to get my memory in check. I've tried memcheck, editing in bios and that crappy asus boot settings.

Any input would be appretiated. Thanks!

XMP is an Intel only thing. You would need to set your memory manually. If your wanting 1333mhz then set the timings to 9-9-9-25 @1333mhz. and 1.5v.

HOWEVER , your CPU has native 1866mhz memory support. So there should be no reason why you couldn't run them at their rated speed of 1600mhz. Just punch in the timings and frequency and you should be good to go. Timings for 1600mhz would be 7-8-8-24 at 1600mhz and 1.5v. Not the 9-9-9-24 you have listed above.

After countless trips to the store vendor, that sold me memory meant for intel, I'm stuck with atleast trying to optimize mine

It doesn't matter. They were just tested on an Intel systems . They are also fully compatible with most AMD systems. As a matter of fact there are plenty of kits that are listed in compatibility &QVL's that appear in both AMD and Intel systems. Just to add to this ...there is no difference between the memory with the same timings in an intel system vs an AMD system at the same speed. One would not be "more optimized" than the other.

XMP is an Intel only thing. You would need to set your memory manually. If your wanting 1333mhz then set the timings to 9-9-9-25 @1333mhz. and 1.5v.

 

HOWEVER , your CPU has native 1866mhz memory support. So there should be no reason why you couldn't run them at their rated speed of 1600mhz. Just punch in the timings and frequency and you should be good to go. Timings for 1600mhz would be 7-8-8-24 at 1600mhz and 1.5v. Not the 9-9-9-24 you have listed above.

Thanks for the info. Here is from the cpu-z report: (Why would it say XMP=Yes?

And regarding timings for 1600mhz as this is dual setup, should I set it for 800mhz vs 667now?

Channels Dual

Memory Frequency 725.8 MHz (3:10)

Memory SPD

DIMM # 1

SMBus address 0x50

Memory type DDR3

Module format UDIMM

Manufacturer (ID) Corsair (7F7F9E0000000000)

Size 4096 MBytes

Max bandwidth PC3-10700 (667 MHz)

Part number CMP16GX3M4X1600C7

Number of banks 8

Nominal Voltage 1.50 Volts

EPP no

XMP yes

XMP revision 1.3

AMP no

JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency

JEDEC #1 6.0-6-6-17-22 @ 457 MHz

JEDEC #2 7.0-7-7-20-26 @ 533 MHz

JEDEC #3 9.0-9-9-25-33 @ 685 MHz

XMP profile XMP-1600

Specification PC3-12800

Voltage level 1.500 Volts

Min Cycle time 1.250 ns (800 MHz)

Min tRP 10.00 ns

Min tRCD 10.00 ns

Min tWR 15.00 ns

Min tRAS 30.00 ns

Min tRC 50.63 ns

Min tRFC 160.00 ns

Min tRTP 7.50 ns

Min tRRD 7.50 ns

Command Rate 2T

XMP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)

XMP #1 6.0-7-7-21-35-2T @ 685 MHz (1.500 Volts)

XMP #2 7.0-8-8-24-41-2T @ 800 MHz (1.500 Volts)

Thanks for the info. Here is from the cpu-z report: (Why would it say XMP=Yes?

Because that information is programed on to the SPD chip in the memory . This information is static and doesn't change regardless of the system it's installed in. That is why it shows in CPUz.

And regarding timings for 1600mhz as this is dual setup, should I set it for 800mhz vs 667now?

I wouldn't make any difference if it were triple or quad channel. But yes, you would use the 800mhz timings. DDR stands for Double Data Rate so you would take the 800mhz and multiply it by 2 for 1600mhz. It doesn't have anything to do with "dual channel" That is actually a function of the MB and not the memory.

Channels Dual

Memory Frequency 725.8 MHz (3:10)

Are you overclocking the CPU? This would be 1450mhz. In between 1333 and 1600mhz.