Memory crashes above 1600

[Thunder1971]

hi all,

ATM I have G.Skill PC3-17000 Arbeitsspeicher 4GB (2133 MHz, 240-polig) DDR3-RAM Kit installed on a GA-Z68X-UD3H-B3 mobo.
If I put the memory at anything above 1600 the system becomes unstable.

Is there a trick to it? Am I forgetting to adjust something else in the BIOS?

I was thinking of simply selling these and buying 8GB of these: 8GB G.Skill DDR3 PC3-12800 1600MHz Ripjaw Series (7-8-7-24) Dual Channel kit for Intel LGA1156

Any advice is welcome.

Kind regards,

Dirk

 

[Thunder1971]

Runnning an i5 2500k stock speeds for now.
The PSU is a corsair 650W.
planning on running the CPU at 3.8 when the cooler is on it.
Still checking for decent coolers.

 

[itzdanielp]

haha, you mixed up the posts... You asked to delete the other one, where I asked that question. oh well.

Which motherboard are you using?

 

[Thunder1971]

Hey itzdanielp,

Yeah sorry about that.
I put it in the post above..first line
installed on a GA-Z68X-UD3H-B3 mobo.

Thank you for your time,

Dirk

 

[itzdanielp]

Have you installed the most current BIOS drivers?

 

[jaquith]

Don't use XMP in the BIOS and set the RAM manually {Frequency, CAS and DRAM Voltage all per spec i.e. MOST DDR3-2133 are 1.65v}. Make certain the RAM is in the correct DIMM slots - CPU: | empty | 2GB | empty | 2GB | i.e. DDR3_1 and DDR3_2.

edit: IF needed raise the QPI/VTT Voltage -> 1.20v

 

[Thunder1971]

I'll give that a shot tomorow morning.
BIOS drivers are the latest.
stock timers are 12-14-12-28 or something. Since I couldn't get the 1600 higher I lowered the latency which works fine.
ATM it is running at 1600 8-9-8-24

 

[jaquith]

My money is on not setting the DRAM Voltage -> 1.60v. Also set the Command Rate -> 2 and perhaps the Rank Interleaving -> Enabled.

I assume the set is F3-17000CL9D-4GBXL 9-11-9-28-2N @ 1.60v

BIOS:
/above Load Optimized/
Extreme Memory Profile (X.M.P.) -> Disabled
System Memory Multiplier -> 21.33
DRAM Timing Selectable -> Quick
Rank Interleaving -> Enabled
* Channel A & B must be set the same *
CAS Latency Time -> 9
tRCD -> 11
tRP -> 9
tRAS -> 28
-
Command Rate (CMD) -> 2
-
QPI/Vtt Voltage -> 1.125v~1.20v ; if unstable
DRAM Voltage -> 1.60v

Save & Exit = Yes

Good Luck!