Ram Underclock ?

[Milleniox]

Hi there

 

I've got an asus strix x99 gaming motherboard with a core i7 6850k and 2x8G ddr4 2400mhz memory

I've been given 8x4G Corsair dominator platinum 3400mhz

 

The mobo only supports up to 3333mhz so, naturally, post code 53 (memory incompatibility)

 

The funny thing is that if I put for exemple 1x8G of my other memory and 1x4G of the corsair one, everything goes fine, 12G detected, both with the 2400mhz speed.

 

If I understand well what is happening, the fastest one has been underclocked to the speed of the slowest one. Is that correct ?

 

So my question is : can I manually underclock the 3400mhz memory so that it can be supported (let's say 2666mhz for example) ? If yes, how ?

 

Thanks allready 

[Mira Yurizaki]

Reset the memory speed settings in your motherboard. This will have the RAM use DDR4-2166 speeds (usually). Then you can set memory speed option to use the fastest speed that the slowest module supports.

[TheBean]

in the uefi there should be ram tuning options. there, just set the speed to 2400 for the corsair dimm's. 

[MrShinny]

Clear CMOS

[Milleniox]

@saksham Problem is, with only the corsair ram inserted, error postcode comes before I can enter bios

Maybe I m doing something wrong

@MrShinny I tried but didnt work..

[TheBean]

31 minutes ago, Milleniox said:

@saksham Problem is, with only the corsair ram inserted, error postcode comes before I can enter bios

Maybe I m doing something wrong

do you have another computer by chance? if so, insert them into a mobo that does support them and then underclock them, put them back n the new one. I really dont see another option

[Milleniox]

7 minutes ago, saksham said:

do you have another computer by chance? if so, insert them into a mobo that does support them and then underclock them, put them back n the new one. I really dont see another option

I believe it's the motherboard who "asks" the underclock to the ram. I think that the ram doesnt "remember" its clock settings from one computer to the other.

Do you see what I mean ?

[TheBean]

Just now, Milleniox said:

I believe it's the motherboard who "asks" the underclock to the ram. I think that the ram doesnt "remember" its clock settings from one computer to the other.

Do you see what I mean ?

that just reminded me. If you put the corsair ones into the motherboard and just let it boot cycle a few times, the mobo will automatically loosen the timings to allow itself to actually boot. i remember did a #AskGn on this topic in episode 81.

[Milleniox]

1 minute ago, saksham said:

that just reminded me. If you put the corsair ones into the motherboard and just let it boot cycle a few times, the mobo will automatically loosen the timings to allow itself to actually boot. i remember did a #AskGn on this topic in episode 81.

Hum... I didnt try that

When I power the pc, the code 53 commes and stays. Should I wait ?

[TheBean]

2 minutes ago, Milleniox said:

Hum... I didnt try that

When I power the pc, the code 53 commes and stays. Should I wait ?

let it power cycle a few times. i dont have a computer to try it with, but i am guessing it should start loosening timings after 5 cycles. again, i am not sure how many it will actually take. so yes, wait for a while. 

[Milleniox]

On 8/3/2018 at 2:04 PM, saksham said:

let it power cycle a few times. i dont have a computer to try it with, but i am guessing it should start loosening timings after 5 cycles. again, i am not sure how many it will actually take. so yes, wait for a while. 

Ok Thanks Ill try that

 

@saksham It does'nt seem To work...

But thank you for your help 

[TheBean]

21 hours ago, Milleniox said:

@saksham It does'nt seem To work...

But thank you for your help 

i just searched up your board. there is something called the MemOK! button in the top right of the mobo. That might help....

 

[TheBean]

Video on how to use memok button

http://www.tomshardware.com/answers/id-2367390/memok-button.html

[Milleniox]

15 hours ago, saksham said:

i just searched up your board. there is something called the MemOK! button in the top right of the mobo. That might help....

 

Thanks a lot for the help, but it does'nt work.. I'll stay with my 16g ram config

[TheBean]

just email Asus for help or maybe try updating bios? this is really wired problem.

[Milleniox]

2 hours ago, saksham said:

just email Asus for help or maybe try updating bios? this is really wired problem.

Bios is up to date, but I'll try to contact Asus

Thank you

[AMDX9]

Out of curiosity do you have XMP enabled?

[Milleniox]

1 hour ago, AMDX9 said:

Out of curiosity do you have XMP enabled?

xmp switch on mobo, xmp in bios, both or none... didnt make a difference here

[TheBean]

what if the ram is just broken... try return it and get another set if you have warranty. also, do you have warranty on the mobo?