1333mhz DDR3 RAM running at 666mhz..why?

[Alexandros Razer]

well i have this MOBO http://www.asus.com/Motherboards/H61MPRO/ and i just bought KINGSTON HX313C9FBK2/8 8GB (2X4GB) DDR3 1333MHZ HYPERX FURY BLACK SERIES DUAL CHANNEL KIT...well when i open cpu-z the rams run at maxbandwidth 666mhz...i am going to bios and i cant change them to run at 1333mhz...my cpu http://ark.intel.com/products/53422/Intel-Core-i3-2100-Processor-3M-Cache-3_10-GHz

 

[neieus]

You have DDR RAM that means it's the speed x2 so 666x2=1332.

This is normal and correct.

 

[Alexandros Razer]

cause i dont know much about this check!!
Memory slots
Total memory slots 2
Used memory slots 2
Free memory slots 0
Memory
Type DDR3
Size 8192 MBytes
Channels # Dual
DRAM Frequency 666,1 MHz
CAS# Latency (CL) 9 clocks
RAS# to CAS# Delay (tRCD) 9 clocks
RAS# Precharge (tRP) 9 clocks
Cycle Time (tRAS) 24 clocks
Command Rate (CR) 1T
Physical Memory
Memory Usage 30 %
Total Physical 7,95 GB
Available Physical 5,55 GB
Total Virtual 16 GB
Available Virtual 13 GB
SPD
Number Of SPD Modules 2
Slot #1
Type DDR3
Size 4096 MBytes
Manufacturer Kingston
Max Bandwidth PC3-10700 (667 MHz)
Part Number 9905402-664.A00LF
Serial Number 0E0E046C
Week/year 41 / 14
Timing table
JEDEC #1
Frequency 457,1 MHz
CAS# Latency 6,0
RAS# To CAS# 6
RAS# Precharge 6
tRAS 17
tRC 23
Voltage 1,500 V
JEDEC #2
Frequency 533,3 MHz
CAS# Latency 7,0
RAS# To CAS# 7
RAS# Precharge 7
tRAS 20
tRC 27
Voltage 1,500 V
JEDEC #3
Frequency 609,5 MHz
CAS# Latency 8,0
RAS# To CAS# 8
RAS# Precharge 8
tRAS 22
tRC 30
Voltage 1,500 V
JEDEC #4
Frequency 685,7 MHz
CAS# Latency 9,0
RAS# To CAS# 9
RAS# Precharge 9
tRAS 25
tRC 34
Voltage 1,500 V
Slot #2
Type DDR3
Size 4096 MBytes
Manufacturer Kingston
Max Bandwidth PC3-10700 (667 MHz)
Part Number 9905402-664.A00LF
Serial Number 0F0E0C6C
Week/year 41 / 14
Timing table
JEDEC #1
Frequency 457,1 MHz
CAS# Latency 6,0
RAS# To CAS# 6
RAS# Precharge 6
tRAS 17
tRC 23
Voltage 1,500 V
JEDEC #2
Frequency 533,3 MHz
CAS# Latency 7,0
RAS# To CAS# 7
RAS# Precharge 7
tRAS 20
tRC 27
Voltage 1,500 V
JEDEC #3
Frequency 609,5 MHz
CAS# Latency 8,0
RAS# To CAS# 8
RAS# Precharge 8
tRAS 22
tRC 30
Voltage 1,500 V
JEDEC #4
Frequency 685,7 MHz
CAS# Latency 9,0
RAS# To CAS# 9
RAS# Precharge 9
tRAS 25
tRC 34
Voltage 1,500 V
so this is normal??thnx for the support btw

 

[neieus]

Yes that's perfectly normal you have nothing to worry about and the RAM is working correctly at the right speed.