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DDR3 RAM runs at 1333MHz instead of 1600?

Tags:
  • Overclocking
  • Corsair
  • DDR3
  • RAM
  • DRAM Frequency
  • BIOS
  • DRAM Voltage
  • Components
Last response: in Components
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June 1, 2014 2:18:23 PM

My computer has 8GB of Corsair XMS3 DDR3 RAM (2 sticks, 4GB each). Its rated for 1600 MHz, but under the BIOS default settings, it only runs at 1333 MHz with a voltage of 1.494V. Aside from having poorer performance, is it bad for DDR3 RAM to run @1333 instead of 1600?

Also, I don't know how to make it run @ 1600 MHz correctly. I know how to change the RAM frequency but I don't know how to get the proper voltage, or what the proper voltage is for DDR3 RAM @1600. If anyone can show me how to properly do it, step by step, that would be great.

EDIT: Is there anything else that should be done, other than adjusting the frequency and voltage? Also should the DRAM voltage be 1.5-1.65V?

My motherboard is an ASUS M5A99X EVO R2.0
https://www.asus.com/Motherboards/M5A99X_EVO_R20/

CPU: AMD FX-8320 Eight-Core

RAM: http://www.amazon.com/Corsair-2x4GB-Desktop-Memory-CMX8...

More about : ddr3 ram runs 1333mhz 1600

a b K Overclocking
June 1, 2014 2:20:11 PM

Read your motherboard manually then go in the BIOS and manually set the settings. Let me know if you get stuck.
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June 1, 2014 2:23:34 PM

damric said:
Read your motherboard manually then go in the BIOS and manually set the settings. Let me know if you get stuck.


Ok. So all I need to do is change the frequency and adjust the voltage
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a b K Overclocking
June 1, 2014 2:24:57 PM

kyler_sakumoto said:
damric said:
Read your motherboard manually then go in the BIOS and manually set the settings. Let me know if you get stuck.


Ok. So all I need to do is change the frequency and adjust the voltage


Is that what it says clearly in your motherboard manual on page 3-9?

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a b K Overclocking
June 1, 2014 2:32:35 PM

you need to set 1600MHz 9-9-9-24 1.65V . dont fear, get into bios, it should be easy since its a UEFI. go into advanced mode - AI tweaker - Dram / digi+ power control to set timings and voltage.

here http://www.corsair.com/en-us/cmx8gx3m2a1600c9.html it says 1.65v for 1600mhz
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June 1, 2014 2:34:18 PM

damric said:
Read your motherboard manually then go in the BIOS and manually set the settings. Let me know if you get stuck.


damric said:
kyler_sakumoto said:
damric said:
Read your motherboard manually then go in the BIOS and manually set the settings. Let me know if you get stuck.


Ok. So all I need to do is change the frequency and adjust the voltage


Is that what is says in your manual?



The manual doesn't say anything about how to properly change RAM frequency. It explains what the frequency and voltage setting is but doesn't say what voltage I need for a 1600MHz setting, or what steps I need to take to change the frequency without messing up my RAM.

I read online that DDR3 RAM @1600 needs 1.5-1.65V. Is that true?
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a b K Overclocking
June 1, 2014 2:36:07 PM

Make sure the RAM timings are fine also.

You should check if there are any profiles that you can select in the bios for your RAM, it might make life easier that way.
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June 1, 2014 2:41:53 PM

chris987 said:
you need to set 1600MHz 9-9-9-24 1.65V . dont fear, get into bios, it should be easy since its a UEFI. go into advanced mode - AI tweaker - Dram / digi+ power control to set timings and voltage.

here http://www.corsair.com/en-us/cmx8gx3m2a1600c9.html it says 1.65v for 1600mhz


What settings do I need to change under DIGI+ power control? The options for DRAM voltage frequency are 300, 350, 400, 450, and 500. What do those mean?

Under DRAM Voltage, the min is 0.86V, the max is 2.135 and the standard is 1.5V. Do I need to change the standard to 1.65V?
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June 1, 2014 2:43:50 PM

damric said:
kyler_sakumoto said:
damric said:
Read your motherboard manually then go in the BIOS and manually set the settings. Let me know if you get stuck.


Ok. So all I need to do is change the frequency and adjust the voltage


Is that what it says clearly in your motherboard manual on page 3-9?



On my manual on page 3-9 it says:

Memory Frequency [Auto]
Allows you to set the memory operating frequency.

Then it lists the different frequencies and warns me not to overclock it to high. That's it.
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June 1, 2014 2:46:33 PM

Calnin said:
Make sure the RAM timings are fine also.

You should check if there are any profiles that you can select in the bios for your RAM, it might make life easier that way.


All of my RAM timings are on auto, but I don't know what the proper values are for those either.

I checked, but there's only an OC profile, no profiles to adjust my RAM.
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a b K Overclocking
June 1, 2014 2:46:42 PM

kyler_sakumoto said:
chris987 said:
you need to set 1600MHz 9-9-9-24 1.65V . dont fear, get into bios, it should be easy since its a UEFI. go into advanced mode - AI tweaker - Dram / digi+ power control to set timings and voltage.

here http://www.corsair.com/en-us/cmx8gx3m2a1600c9.html it says 1.65v for 1600mhz


What settings do I need to change under DIGI+ power control? The options for DRAM voltage frequency are 300, 350, 400, 450, and 500. What do those mean?

Under DRAM Voltage, the min is 0.86V, the max is 2.135 and the standard is 1.5V. Do I need to change the standard to 1.65V?


kyler_sakumoto said:
damric said:
kyler_sakumoto said:
damric said:
Read your motherboard manually then go in the BIOS and manually set the settings. Let me know if you get stuck.


Ok. So all I need to do is change the frequency and adjust the voltage


Is that what it says clearly in your motherboard manual on page 3-9?



On my manual on page 3-9 it says:

Memory Frequency [Auto]
Allows you to set the memory operating frequency.

Then it lists the different frequencies and warns me not to overclock it to high. That's it.


it should say this Dram voltage 1.5v Auto . change the value from auto to manual and increase to 1.65v
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June 1, 2014 2:50:04 PM

damric said:
kyler_sakumoto said:
damric said:
Read your motherboard manually then go in the BIOS and manually set the settings. Let me know if you get stuck.


Ok. So all I need to do is change the frequency and adjust the voltage


Is that what it says clearly in your motherboard manual on page 3-9?



Dude, what are you trying to say? Just tell me flat out
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a b K Overclocking
June 1, 2014 2:51:28 PM

Just change that auto to your desired setting.
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June 1, 2014 2:52:32 PM

chris987 said:
kyler_sakumoto said:
chris987 said:
you need to set 1600MHz 9-9-9-24 1.65V . dont fear, get into bios, it should be easy since its a UEFI. go into advanced mode - AI tweaker - Dram / digi+ power control to set timings and voltage.

here http://www.corsair.com/en-us/cmx8gx3m2a1600c9.html it says 1.65v for 1600mhz


What settings do I need to change under DIGI+ power control? The options for DRAM voltage frequency are 300, 350, 400, 450, and 500. What do those mean?

Under DRAM Voltage, the min is 0.86V, the max is 2.135 and the standard is 1.5V. Do I need to change the standard to 1.65V?


kyler_sakumoto said:
damric said:
kyler_sakumoto said:
damric said:
Read your motherboard manually then go in the BIOS and manually set the settings. Let me know if you get stuck.


Ok. So all I need to do is change the frequency and adjust the voltage


Is that what it says clearly in your motherboard manual on page 3-9?



On my manual on page 3-9 it says:

Memory Frequency [Auto]
Allows you to set the memory operating frequency.

Then it lists the different frequencies and warns me not to overclock it to high. That's it.


it should say this Dram voltage 1.5v Auto . change the value from auto to manual and increase to 1.65v


Alright thanks.
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June 1, 2014 2:53:07 PM

damric said:
Just change that auto to your desired setting.


So I don't need to adjust the voltage?
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a b K Overclocking
June 1, 2014 2:54:08 PM

Possibly not. If it works at lower voltage, that's even better.
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Best solution

a b K Overclocking
June 1, 2014 2:59:09 PM

kyler_sakumoto said:
chris987 said:
kyler_sakumoto said:
chris987 said:
you need to set 1600MHz 9-9-9-24 1.65V . dont fear, get into bios, it should be easy since its a UEFI. go into advanced mode - AI tweaker - Dram / digi+ power control to set timings and voltage.

here http://www.corsair.com/en-us/cmx8gx3m2a1600c9.html it says 1.65v for 1600mhz


What settings do I need to change under DIGI+ power control? The options for DRAM voltage frequency are 300, 350, 400, 450, and 500. What do those mean?

Under DRAM Voltage, the min is 0.86V, the max is 2.135 and the standard is 1.5V. Do I need to change the standard to 1.65V?


kyler_sakumoto said:
damric said:
kyler_sakumoto said:
damric said:
Read your motherboard manually then go in the BIOS and manually set the settings. Let me know if you get stuck.


Ok. So all I need to do is change the frequency and adjust the voltage


Is that what it says clearly in your motherboard manual on page 3-9?



On my manual on page 3-9 it says:

Memory Frequency [Auto]
Allows you to set the memory operating frequency.

Then it lists the different frequencies and warns me not to overclock it to high. That's it.


it should say this Dram voltage 1.5v Auto . change the value from auto to manual and increase to 1.65v


I can't change it to Manual, but I can increase the value to 1.65
It looks like this:

DRAM Voltage 1.494V 1.65000


yes increase the value to 1.65v there are two modes offset and manual for these settings

https://www.youtube.com/watch?v=vzNwiXA03fQ
Share
June 1, 2014 3:01:33 PM

damric said:
Possibly not. If it works at lower voltage, that's even better.


So it could run @1600 on 1.5V even though its tested for 1.65V @1600
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June 1, 2014 3:03:15 PM

chris987 said:
kyler_sakumoto said:
chris987 said:
kyler_sakumoto said:
chris987 said:
you need to set 1600MHz 9-9-9-24 1.65V . dont fear, get into bios, it should be easy since its a UEFI. go into advanced mode - AI tweaker - Dram / digi+ power control to set timings and voltage.

here http://www.corsair.com/en-us/cmx8gx3m2a1600c9.html it says 1.65v for 1600mhz


What settings do I need to change under DIGI+ power control? The options for DRAM voltage frequency are 300, 350, 400, 450, and 500. What do those mean?

Under DRAM Voltage, the min is 0.86V, the max is 2.135 and the standard is 1.5V. Do I need to change the standard to 1.65V?


kyler_sakumoto said:
damric said:
kyler_sakumoto said:
damric said:
Read your motherboard manually then go in the BIOS and manually set the settings. Let me know if you get stuck.


Ok. So all I need to do is change the frequency and adjust the voltage


Is that what it says clearly in your motherboard manual on page 3-9?



On my manual on page 3-9 it says:

Memory Frequency [Auto]
Allows you to set the memory operating frequency.

Then it lists the different frequencies and warns me not to overclock it to high. That's it.


it should say this Dram voltage 1.5v Auto . change the value from auto to manual and increase to 1.65v


I can't change it to Manual, but I can increase the value to 1.65
It looks like this:

DRAM Voltage 1.494V 1.65000


yes increase the value to 1.65v there are two modes offset and manual for these settings

https://www.youtube.com/watch?v=vzNwiXA03fQ


Alright thanks. I thought the manual option was specifically on the DRAM Voltage setting
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a b K Overclocking
June 1, 2014 3:03:28 PM

You won't know until you try.
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a b K Overclocking
June 1, 2014 3:23:01 PM

kyler_sakumoto said:
chris987 said:
kyler_sakumoto said:
chris987 said:
kyler_sakumoto said:
chris987 said:
you need to set 1600MHz 9-9-9-24 1.65V . dont fear, get into bios, it should be easy since its a UEFI. go into advanced mode - AI tweaker - Dram / digi+ power control to set timings and voltage.

here http://www.corsair.com/en-us/cmx8gx3m2a1600c9.html it says 1.65v for 1600mhz


What settings do I need to change under DIGI+ power control? The options for DRAM voltage frequency are 300, 350, 400, 450, and 500. What do those mean?

Under DRAM Voltage, the min is 0.86V, the max is 2.135 and the standard is 1.5V. Do I need to change the standard to 1.65V?


kyler_sakumoto said:
damric said:
kyler_sakumoto said:
damric said:
Read your motherboard manually then go in the BIOS and manually set the settings. Let me know if you get stuck.


Ok. So all I need to do is change the frequency and adjust the voltage


Is that what it says clearly in your motherboard manual on page 3-9?



On my manual on page 3-9 it says:

Memory Frequency [Auto]
Allows you to set the memory operating frequency.

Then it lists the different frequencies and warns me not to overclock it to high. That's it.


it should say this Dram voltage 1.5v Auto . change the value from auto to manual and increase to 1.65v


I can't change it to Manual, but I can increase the value to 1.65
It looks like this:

DRAM Voltage 1.494V 1.65000


yes increase the value to 1.65v there are two modes offset and manual for these settings

https://www.youtube.com/watch?v=vzNwiXA03fQ


Alright thanks. I thought the manual option was specifically on the DRAM Voltage setting


you are welcome and i also agree you will never know unti you try, UEFI is great isnt it?
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