Sign in with
Sign up | Sign in
Your question
Solved

1600MHz RAM showing 1333 MHz in BIOS

Last response: in Memory
Share
June 10, 2013 9:55:01 PM

I've Intel i7-3930K processor with DX79SR MB. 4, 1600 MHz 8 GB RAMs (Hynix Make) and 4, 1600 MHz 8 GB RAMs (Kingston Make) are installed. But Bios is showing 1333MHz memory frequency. Please help
June 10, 2013 10:32:48 PM

Hi,:hihi: 
jvm123 said:
I've Intel i7-3930K processor with DX79SR MB. 4, 1600 MHz 8 GB RAMs (Hynix Make) and 4, 1600 MHz 8 GB RAMs (Kingston Make) are installed. But Bios is showing 1333MHz memory frequency. Please help

Do you have any other speed memory installed in your system other than 1600MHz? Could you let me know the exact mfg's part number of both the Hynix and Kingston RAM?

Note: The default DIMM frequency depends on its Serial Presence Detect (SPD), which is the standard way of accessing information from a memory module. Under the default state, some memory modules for overclocking may operate at a lower frequency than the vendor-marked value.

Sometimes the SPDs maybe programmed to JEDEC standard DDR3-1333. You can change the speed manually to 1600MHz in your BIOS. Refer your manual.

Good luck!!
m
0
l
June 10, 2013 10:42:55 PM

If running at 1333 Ok, then go into BIOS raise DRAM freq to 1600 and add + 0.06 to the DRAM voltage and try that, would guess base timings are at 9-9-9-27 currently, leave them at that or if different try with what the timings currently are and the freq and voltage adjustment I mentioned, if it fails with current timings, try the 9-9-9-27 I showed above
m
0
l
Related resources
June 11, 2013 1:27:21 AM

Legohouse said:
Hi,:hihi: 
jvm123 said:
I've Intel i7-3930K processor with DX79SR MB. 4, 1600 MHz 8 GB RAMs (Hynix Make) and 4, 1600 MHz 8 GB RAMs (Kingston Make) are installed. But Bios is showing 1333MHz memory frequency. Please help

Do you have any other speed memory installed in your system other than 1600MHz? Could you let me know the exact mfg's part number of both the Hynix and Kingston RAM?

Note: The default DIMM frequency depends on its Serial Presence Detect (SPD), which is the standard way of accessing information from a memory module. Under the default state, some memory modules for overclocking may operate at a lower frequency than the vendor-marked value.

Sometimes the SPDs maybe programmed to JEDEC standard DDR3-1333. You can change the speed manually to 1600MHz in your BIOS. Refer your manual.

Good luck!!


Thank you.
Here are the details of the Hynix and Kingston RAM
HYNIX PC1600S-25330
8 GB DDR3 CL2.5
HYMD564MB646CP56-CF

KINGSTON KVR16N11/8-SP
8GB PC3-12800 CL11 240 pin DIMM
m
0
l
June 11, 2013 1:28:46 AM

Tradesman1 said:
If running at 1333 Ok, then go into BIOS raise DRAM freq to 1600 and add + 0.06 to the DRAM voltage and try that, would guess base timings are at 9-9-9-27 currently, leave them at that or if different try with what the timings currently are and the freq and voltage adjustment I mentioned, if it fails with current timings, try the 9-9-9-27 I showed above


Thank You,

Here are the details of the Hynix and Kingston RAM that I'm using
HYNIX PC1600S-25330
8 GB DDR3 CL2.5
HYMD564MB646CP56-CF

KINGSTON KVR16N11/8-SP
8GB PC3-12800 CL11 240 pin DIMM
m
0
l

Best solution

June 11, 2013 3:31:28 PM

:welcome: 
jvm123 said:

Thank You,
Here are the details of the Hynix and Kingston RAM that I'm using
HYNIX PC1600S-25330
8 GB DDR3 CL2.5
HYMD564MB646CP56-CF
KINGSTON KVR16N11/8-SP
8GB PC3-12800 CL11 240 pin DIMM

The Kingston memory is compatible with your system however I'm not sure about the HYNIX module the specification isn't clear. PC1600S? S normally is referred to SO-DIMM modules. CL2.5 for DDR3 1600 memory I do not think so. Please check the label correctly or try running CPU-Z (Click on download now). (If you are running the CPU-Z then check the SPD tab, select the slots and you will find the details of the memory, check the speed and the manufacturer part number).

Also try the process mentioned by in the above post by Tradesman1. In the BIOS click on the Performance Tab to adjust the memory frequency. Read your manual <- Click here.

Good luck.
Share
!