How to determine if laptop SODIMM RAM is compatible?

sydney_kings · 22nd January 2006, 1:22 PM

I'm looking to add an additional RAM chip into my laptop.
The laptop is an Asus W5Ae, which going by the specifications, it only will take DDR2 400MHz SODIMM 200-pin chips.

The recommended Infineon and Samsung chips are extremely difficult to find, so I'm wondering if I can just find other RAM modules of the same type (ie. DDR2 400MHz 200pin CL3 PC2-3200) will suffice?

Would RAM of a lower Class (ie. CL4 and Lead free Package) be compatible with CL3 with Leaded Package? Also, is a faster speed downward compatible just like desktop memory (ie. will DDR2-533 work for DDR2-400)?

FlameTheFire · 23rd January 2006, 10:58 AM

Normally the faster speed will work - best bet is to walk into a computer store and ask to test it before you buy it.

kung-f00-kamel · 14th February 2006, 7:21 PM

I have been using Kingmax sodimms to upgrade PC Lappys and Apple iBook/Powerbooks for years and have never had one not work

The Kingmax website says these are compatible with your Notebook

KSBD48F-A8SG4-SGA

DDRII 533

1GB SO-DIMM
KSBC28F-A8SG4-SBE

DDRII 533

512MB SO-DIMM
KSBB68F-36EP4-EAA

DDRII 533

256MB SO-DIMM
KSBC28F-A8EB4-EEA

DDRII 533

512MB SO-DIMM
KSBD48F-A8ME4-MGE

DDRII 533

1GB SO-DIMM
KSBB68F-36HD4-HAA

DDRII 533

256MB SO-DIMM
KSBC28K-A8HD4-HBA

DDRII 533

512MB SO-DIMM

And yes Sodimms are like normal Ram Dimms they are backwards compatible

Kingmax is sold everywhere so I dont think you will have any probs getting some, I just upgraded a Lappy the other day with 2 x 1GB DDR2 Kingmax sticks, it was a Intel 915 Chipset, worked great

Cheers

KFK

22nd January 2006, 1:22 PM	#1
sydney_kings Member Join Date: Aug 2003 Posts: 177	How to determine if laptop SODIMM RAM is compatible? I'm looking to add an additional RAM chip into my laptop. The laptop is an Asus W5Ae, which going by the specifications, it only will take DDR2 400MHz SODIMM 200-pin chips. The recommended Infineon and Samsung chips are extremely difficult to find, so I'm wondering if I can just find other RAM modules of the same type (ie. DDR2 400MHz 200pin CL3 PC2-3200) will suffice? Would RAM of a lower Class (ie. CL4 and Lead free Package) be compatible with CL3 with Leaded Package? Also, is a faster speed downward compatible just like desktop memory (ie. will DDR2-533 work for DDR2-400)? Last edited by sydney_kings; 22nd January 2006 at 1:30 PM.

23rd January 2006, 10:58 AM	#2
FlameTheFire Member Join Date: Jun 2004 Posts: 196	Normally the faster speed will work - best bet is to walk into a computer store and ask to test it before you buy it.

14th February 2006, 7:21 PM	#3
kung-f00-kamel Member Join Date: Aug 2002 Location: Rockingham, Perth, W.A. Posts: 139	I have been using Kingmax sodimms to upgrade PC Lappys and Apple iBook/Powerbooks for years and have never had one not work The Kingmax website says these are compatible with your Notebook KSBD48F-A8SG4-SGA DDRII 533 1GB SO-DIMM KSBC28F-A8SG4-SBE DDRII 533 512MB SO-DIMM KSBB68F-36EP4-EAA DDRII 533 256MB SO-DIMM KSBC28F-A8EB4-EEA DDRII 533 512MB SO-DIMM KSBD48F-A8ME4-MGE DDRII 533 1GB SO-DIMM KSBB68F-36HD4-HAA DDRII 533 256MB SO-DIMM KSBC28K-A8HD4-HBA DDRII 533 512MB SO-DIMM And yes Sodimms are like normal Ram Dimms they are backwards compatible Kingmax is sold everywhere so I dont think you will have any probs getting some, I just upgraded a Lappy the other day with 2 x 1GB DDR2 Kingmax sticks, it was a Intel 915 Chipset, worked great Cheers KFK