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RAM questions. Built my first computer, no idea...

Last response: in Memory
October 4, 2011 8:58:01 PM

Hi again guys,
I'm back with yet another problem =[. I just built my first computer (YAY ME!) but I'm having some problems with the RAM. I bought 2 sticks of 4GB each RAM. Running at 2333. Sadly, it's only showing that it's running at 1600. I'm not sure if I should overclock it (if you can even do that with RAM) or just let it be. If I should overclock it, how in the heck do you go about that? I really appreciate all your input.

Thanks again.


GIGABYTE GA-P67A-UD4-B3 LGA 1155 Intel P67 SATA 6Gb/s USB 3.0 ATX Intel Motherboard

G.SKILL Ripjaws X Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 2133 (PC3 17000) Desktop Memory Model F3-17000CL11D-8GBXL

APEVIA X-CRUISER2-RD Red SECC Steel ATX Mid Tower Computer Case

Intel Core i5-2500K Sandy Bridge 3.3GHz (3.7GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor BX80623I52500K

October 5, 2011 11:33:33 AM

hi drumorgan this is the list of supported memory for ur mobo

and this is the spec of ur mobo for rams :

* Due to Windows 32-bit operating system limitation, when more than 4 GB of physical memory is installed, the actual memory size displayed will be less than 4 GB.
Dual channel memory architecture
Support for DDR3 2133/1866/1600/1333/1066 MHz memory modules
Support for non-ECC memory modules
Support for Extreme Memory Profile (XMP) memory modules

this is mean the maximum ram for ur mobo is 2133
try to check ur bios to c the value of ur rams and replay us
October 5, 2011 3:22:28 PM

werner123 said:
Hi, just leave it at 1600 it's more than enough, and it's because your motherboard natively supports ddr3 1600 and not 2133 that's why it's not running at 2133

DDR3 2133/1866/1600/1333/1066 is what it says under Memory Standard.

I will check my BIOS to see what it says.

Edit: Alright, I went into my BIOS and this is what I got

BIOS Version F3

BCLK 101.84MHz

CPU Frequency 3768.50MHz

Memory Frequency 1901.10MHz

VCore 1.308V

DRAM Voltage 1.536V

Appreciate the help gents.

Edit yet again:

Alright, so I went into BIOS and changed something (forgot the name of it... but I know how to get back to it). I changed it to 21.33. Now my readings on my Memory Frequency are at 2172.90MHz

Is this going to hurt the RAM? Or is just a little bit faster than what its set at hurt it?
Related resources
October 5, 2011 6:00:37 PM

It doesn't say O.C. anywhere that I can see =/

Best solution

a c 347 } Memory
October 5, 2011 6:40:22 PM

BIOS - IMO use F4 and not F5 or beta, the 22nm BIOS flashes have been causing too many 'new' problems. Wait for F6/F7.

As far as setting the RAM to DDR3-2133 11-11-11-30-2N @ 1.50v

CPU: | blank | 4GB | blank | 4GB |
failure: {though not documented, often one set of DIMM slots works better at high frequencies}
CPU: | 4GB | blank | 4GB | blank |

The simplest is to set the XMP in the BIOS:
Extreme Memory Profile (X.M.P.) -> Profile1


BCLK/DMI/PEG Clock Control -> Enabled ; it's best to set the BCLK for OC'ing the CPU
BCLK/DMI/PEG Frequency -> 1000 / 100MHz ; it's best to set the BCLK for OC'ing the CPU

Advanced Memory Settings /Enter
System Memory Multiplier -> 21.33
Performance Enhance -> Extreme ; problems use Turbo
DRAM Timing Selectable -> Quick
CAS Latency Time -> 11
tRCD -> 11
tRP -> 11
tRAS -> 30
Command Rate (CMD) -> 2
QPI/Vtt Voltage -> 1.125v
DRAM Voltage -> 1.50~1.55v ; high 1.55v if unstable

Also See ->
October 5, 2011 7:45:57 PM


You sir are awesome. Thank you.

Edit: Close thread! Thanks.
October 5, 2011 7:46:39 PM

Best answer selected by drumorgan.