CPU/Mobo RAMs of different frequency ?

[thatsashok]

When i bought my laptop (almost 10 months ago) i told the guy over there to make the RAM upgrade to 4GB from 3GB onboard.

he did upgrade the RAM that time but i never bothered about what he has put inside the laptop.

Today i downloaded CPU-Z and saw that i have two different RAM frequencies showing up there when i tested on my laptop. Googled about that but from what i read i got only a little.

So posting it here to get to know about it.

1) Will there be any problem if different frequency RAMS were used?

2) How do i know the maximum frequency and RAM capacity that my mobo supports ?

3) Is it better that i get rid of the current RAM and upgrade ?

Some sceenshots :

PC Wizard info on the Physical memory

Spoiler

General Information :

DIMM0 () : 2048 (Single Bank)

DIMM1 : Empty

DIMM1 () : 2048 (Single Bank)

DIMM3 : Empty

Information SPD EEPROM (DIMM0) :

Manufacturer : Samsung

Part Number : M471B5673FH0-CF8

Serial Number : EB262E8418D6EC52

Specification : F

Type : DDR3-SDRAM PC3-8500 (533MHz) - [DDR3-1067]

Format : SO-DIMM (67.6 x 15)

Size : 2048MB (2 ranks, 8 banks)

Module Buffered : No

Module Registered : No

Module SLi Ready (EPP) : No

Module XMP : No

Width : 64-bit

Error Correction Capability (EC... Unspecified

Prefetch Buffer : 8-bit

Manufacture : Week 23 of 2010

Thermal Sensor : No

Heat Spreader : No

Supported Frequencies : 381MHz, 457MHz, 533MHz, 610MHz

CAS Latency (tCL) : 5 clocks @ 381MHz, 6 clocks @ 457MHz, 7 clocks @ 533MHz, 8 clocks @ 610MHz

RAS to CAS (tRCD) : 5 clocks @ 381MHz, 6 clocks @ 457MHz, 7 clocks @ 533MHz, 8 clocks @ 610MHz

RAS Precharge (tRP) : 5 clocks @ 381MHz, 6 clocks @ 457MHz, 7 clocks @ 533MHz, 8 clocks @ 610MHz

Cycle Time (tRAS) : 15 clocks @ 381MHz, 18 clocks @ 457MHz, 20 clocks @ 533MHz, 23 clocks @ 610MHz

Min TRC : 20 clocks @ 381MHz, 24 clocks @ 457MHz, 27 clocks @ 533MHz, 31 clocks @ 610MHz

Information SPD EEPROM (DIMM1) :

Manufacturer : Hyundai Electronics

Part Number : HMT125S6BFR8C-H9

Serial Number : A205613518D6EC52

Type : DDR3-SDRAM PC3-10700 (667MHz) - [DDR3-1333]

Format : SO-DIMM (67.6 x 15)

Size : 2048MB (2 ranks, 8 banks)

Module Buffered : No

Module Registered : No

Module SLi Ready (EPP) : No

Module XMP : No

Width : 64-bit

Error Correction Capability (EC... Unspecified

Prefetch Buffer : 8-bit

Manufacture : Week 42 of 2010

Thermal Sensor : No

Heat Spreader : No

Supported Frequencies : 381MHz, 457MHz, 533MHz, 610MHz, 686MHz

CAS Latency (tCL) : 5 clocks @ 381MHz, 6 clocks @ 457MHz, 7 clocks @ 533MHz, 8 clocks @ 610MHz, 9 clocks @ 686MHz

RAS to CAS (tRCD) : 5 clocks @ 381MHz, 6 clocks @ 457MHz, 7 clocks @ 533MHz, 8 clocks @ 610MHz, 9 clocks @ 686MHz

RAS Precharge (tRP) : 5 clocks @ 381MHz, 6 clocks @ 457MHz, 7 clocks @ 533MHz, 8 clocks @ 610MHz, 9 clocks @ 686MHz

Cycle Time (tRAS) : 14 clocks @ 381MHz, 17 clocks @ 457MHz, 20 clocks @ 533MHz, 22 clocks @ 610MHz, 25 clocks @ 686MHz

Min TRC : 19 clocks @ 381MHz, 23 clocks @ 457MHz, 27 clocks @ 533MHz, 30 clocks @ 610MHz, 34 clocks @ 686MHz

Memory Controller Information :

Memory Controller : System Memory

Location : Mainboard

Error Correction Capability : No

Number of connectors : 2

Max. Module Size : 16384 MB

PC WIZARD info on Chipset

Spoiler

General Information :

NorthBridge : Intel Core i5 Arrandale

SouthBridge : Intel HM55

NorthBridge Information :

Architecture : QPI

Memory Controller : Integrated

Manufacturer : Intel (Toshiba America Information Systems)

Revision : 02

Bus Speed : 119.6MHz

QPI Link : 2153.4MHz

Memory Information :

Type : DDR3-SDRAM PC3-17100

Frequency : 1066.7MHz

DRAM/FSB Ratio : 16/4

Supported Channels : Dual

Mode : Symmetric

Activated Channels : Symmetric

ECC Diagnostic : Yes - Disabled

CAS Latency (tCL) : 7 clocks

RAS to CAS (tRCD) : 7 clocks

RAS Precharge (tRP) : 7 clocks

Cycle Time (tRAS) : 20 clocks

Row Refresh Cycle Time (tRF... 60 clocks

Command Rate : 1 T

APIC Information :

Version : 2.00

Maximum Interrupts : 24

IRQ Handler enabled : No

Functionality :

SATA AHCI Enabled : No

RAID 0/1/10 Enabled : No

RAID 5 Enabled : No

PCI Express x1 Enabled : No

Intel AMT : No

Intel QST : No

Intel IPT : No

SPI Interface : Yes

USB Ports 6, 7 : No

PCI Express Ports 7, 8 : No

SATA Ports 2, 3 : No

Multiplex : No

Device Capabilities (PCI) :

I/O Access : No

Memory Access : Yes

Bus Master Capable : Yes

Special Cycle Recognition : No

Memory Write & Invalidate : No

VGA Palette Snoop : No

Parity Error Response : No

Cycle Wait : No

System Error Line : No

Fast Back-to-Back : No

Detects Parity Errors : No

User Defined Format : No

PCI 66Mhz Bus Support : No

New Capability List : Yes

PCI Support : Vendor-Dependant

 

[sumonpathak]

there wont be any problem......both rams will run @ the lowest frequency[533 in this case].

 

[Arjun]

The ram will run at the lower frequency ie 533mhz , click memory tab in CPUz to check the speed

 

[thatsashok]

there wont be any problem......both rams will run @ the lowest frequency[533 in this case].

The ram will run at the lower frequency ie 533mhz , click memory tab in CPUz to check the speed

thanks guys.... can you shed some light on these also

2) How do i know the maximum frequency and RAM capacity that my mobo supports ?

3) Is it better that i get rid of the current RAM and upgrade ?

 

[sumonpathak]

1.we need to know the model no of your laptop....

2.if you have the cash then go for it

 

[thatsashok]

1.we need to know the model no of your laptop....

Toshiba Satellite L640-X4310... the middle one in the link

:: Toshiba India ::

2.if you have the cash then go for it

if there guarantee for a significant difference in performance i will go for it

Besides i never heard of Hyundai RAMs

[OT]Also i observed this but never posted on TE

How much RAM is usable on 64bit OS - Microsoft Answers [/OT]

 

[vivek.krishnan]

Most if the new laptops support upto 8 GB of memory. SO would advice to get the 2x4GB 1333Mhz G.Skill from prime@1200. Always running matched modules is better.

 

[thatsashok]

Most if the new laptops support upto 8 GB of memory. SO would advice to get the 2x4GB 1333Mhz G.Skill from prime@1200. Always running matched modules is better.

Thats my question vivek.. how do i know what all frequencies are suppported by my laptop's mobo ?

And yes its upgradable till 8 GB

 

[vivek.krishnan]

Don't bother about the frequencies. Get a 1333Mhz module. If supported, it will work @ 1333. Else will down clock to 1066.

 

[ganesh.ame]

click the memory tab!!

 

[Hades.]

it would be better if you would head to Intel website and check your CPU specification... If your laptops processor memory controller officially supports 1333MHz RAM then the RAMs would work at their rated frequency if not then they would get downclocked to 1066MHz...

 

[vivek.krishnan]

In which case:

Memory Types DDR3-800/1066

from Intel® Core

Now its upto you as to what you wish to get. If the price difference is negligible get 1333 modules, else stick with 1066 ones.