Advanced question about Memory!?

[lipeuk]

Hi Guys!

I want to upgrade memory of my VAIO VGN-SZ1HP/B
I am between 1GZ DDR2-533Mhz Corsair Cas Latency 2.5 128Mx64 or 1GZ DDR2-677Mhz Generic Cas Latency 5 64x64

Which one can be faster?

I had experience to replace DDR400 Cas 3 to DDR533 Cas 5 and I didn't see any difference. I am using EVEREST Home for bearchmark. I can get 5200 points with ddr400 and 5300 points with ddr533 with my HP Laptop. SO it is not big difference at all.

What does CAS mean?

Thanks in advance!

[rich912]

Hi lipeuk,

I’m afraid there is no easy answer to this as the performance of any given memory module is dependant on many factors and will only perform as fast as the weakest link in the chain will allow.

For further reading, including an explanation of CAS (column address strobe), have a look
HERE.

[Chicomania]

Hi guys!

Tomorrow I will buy 2x 512MB Corsair DDR 333MHZ So-Dimm´s for my VGN A-115Z.
Do you have any tips to use the performance best?
Any config tips on winXP pro oder Bios which I have to change?
Now there are only 2x256MB DDR in my notebook and I hope it will get faster... what do you think?

Regards

Tarek

[rich912]

No changes to the system or BIOS are necessary Chicomania, the operating system will recognise the additional memory and utilise it accordingly.