Memory Mhz wrong??

Unicorn · 1 Jul 2014 at 14:02

Hi guys looking for support on my RAM

I have this ram
http://www.overclockers.co.uk/showproduct.php?prodid=MY-177-KS&groupid=701&catid=8&subcat=1387

And a Gigabyte z97mx gaming 5 board.

It is set at default as 1600Mhz but when i set the bios to set the ram for 2400Mhz it shoots up to 1.692v and makes my system unable to boot :S

What am i doing wrong here?

New to intel boards and XMP

P4Clock · 1 Jul 2014 at 14:10

just because the ram will do 2400Mhz, and your board/CPU will support 2400Mhz it dont mean you can run it at 2400Mhz.
start at 1600 and go up one speed raiting at a time untill you cant boot then drop down to the last stable setting

What motherboard / CPU do you have

lude1962 · 1 Jul 2014 at 14:24

did you select xmp in bios?

Unicorn · 1 Jul 2014 at 14:43

P4Clock said:
just because the ram will do 2400Mhz, and your board/CPU will support 2400Mhz it dont mean you can run it at 2400Mhz.
start at 1600 and go up one speed raiting at a time untill you cant boot then drop down to the last stable setting

What motherboard / CPU do you have

Z97MX-Gaming 5 and i5 4690K

lude1962 said:
did you select xmp in bios?

Yes

P4Clock · 1 Jul 2014 at 14:47

CPU only supports 1333 and 1600 out of the box
http://ark.intel.com/products/80811/Intel-Core-i5-4690K-Processor-6M-Cache-up-to-3_90-GHz

P4Clock · 1 Jul 2014 at 14:49

the motherboard info says anything over 1600 is an OC(over clock) so not going to be guaranteed

Support for DDR3 3100(O.C.) / 3000(O.C.) / 2933(O.C.) / 2800(O.C.) / 2666(O.C.) / 2600(O.C.) / 2500(O.C.) / 2400(O.C.) / 2200(O.C.) / 2133(O.C.) / 2000(O.C.) / 1866(O.C.) / 1800(O.C.) / 1600 / 1333 MHz memory modules

try some of the lower speed 2200 2133 2000 1866 1800 and see how you get on

stulid · 1 Jul 2014 at 14:59

@Uincorn, try updating the boards BIOS.

Unicorn · 1 Jul 2014 at 15:24

Just updated the bios to F4 as suggested going to try the overclock now.

Unicorn · 1 Jul 2014 at 17:19

It boots not stable though its iffy on if it wants to make desktop or not.

Voltage on anything over 1600Mhz is 1.692 is that right?

stulid · 1 Jul 2014 at 18:47

Voltage should be printed on the sticks somewhere or on the packaging

Unicorn · 1 Jul 2014 at 19:00

1.5-1.65v

stulid · 1 Jul 2014 at 19:04

Are there two xmp profiles available?

I have Kingston 2400 ram and the second profile is 2133MHz.

Stas823 · 1 Jul 2014 at 23:21

set it as xmp and then manually lower the voltage it does the same with my ram shooting up really high but lowering down to 1.6v and it runs fine.

pgi947 · 1 Jul 2014 at 23:26

Set xmp
Memory timings on auto (if this is linked or unlinked that's your problem!)
CPU input voltage at 1.95v (make sure this is input or vccio not vcore!!!)
Sa at 1.15v
Io/a/d at 1.15v
Manually set dram voltage to 1.65v

If that's not stable then update bios, if still not stable then memory isn't fully compatible.

If it is stable start to wind down the sa and io voltages.

alexhaslam · 2 Jul 2014 at 09:36

When I installed my new ram into my pc, it took me about 20 mins to find a stable oc that could support the 2400mhz. Got it though.

How I did it:
Set Ram to XMP profile, and start off at 1866mhz.
Overclock CPU to a known stable without any fiddling (in my case 4.4Ghz).
Then reboot, if it boots go back in and up the Memory speed one up.
Repeat until it no longer boots, reset bios, match the previous setting where it crashed and back the memory speed down one.

I eventully got it running at its 2400mhz... I wasn't supplying the full Voltage to it.