Asus G1S PC-5300/PC-6400 ram

Hello,

I'm already thinking of upgrading the ram in my G1S for a LONG time (was thinking about 3GB OR 4GB ram)
I know that i need vista x64 to use all the 4GB of ram put I'm planning to buy a new hard drive in a few months and then I'm gone install vista x64 on it

So I will already buy my 4GB ram NOW, i can choose between 2 sorts of ram:
- V-Data SO Dimm DDR2 2GB 667Mhz PC5300
- V-Data SO Dimm DDR2 2GB 800Mhz PC6400

I can get one of the above memory modules for 49,90 Euro (That's 73.49 USD)
The 667Mhz memory AND the 800Mhz got the same price

So now is my question: what should I take?
I have already seen that the G1S can only use 667Mhz memory and if you put in 800Mhz memory it automatically downclocks to 667Mhz...

And is PC6400 memory compatible with the G1S?

 

I was going to ask the same thing? is there really that much of a difference between the two and can the G1S fully utilize them for them best?

 

I asked Justin about DDR2 800 for my G1s when I ordered it. He told me that they can put it in their, but it would run as DDR2 667. Go for the DDR2 800 module because you can always save it for a future laptop if you ever buy another one.

 

Our posts just crossed each other (editing it now )
Yea indeed, that's smart
If the PC6400 ram is compatible then I'm happy

Thanks

 

I got a quick question:
Is this ram compatible with the G1S??
Transcend JM667QSU-2G Jetram 2 GB, DDR2 667 MHz, SODIMM 5-5-5

I can get it cheap so that's why i ask it (Actually i have never heard about Transcend before, is it good to get ram from that company ?)

 

Can somebody answer please? I have to go to that store in a few minutes !! And i don't want to buy crappy ram,...

 

Transcend is a second-tier memory manufacturer, but generally reliable.

All RAM these days is ultra-cheap, it's the glut of DDR2 with DDR3 not coming into play yet. Overproduced supply and normal demand - simple economics .

Keep in mind later that Asus' (and everybody's, sort of) support for 64 bit drivers is spotty, according to some reports around here.

 

And what about the latency of the ram?
The only thing the store says is: Transcend JM667QSU-2G Jetram 2 GB, DDR2 667 MHz, SODIMM 5-5-5

Is it 5-5-5-12 of 5-5-5-15 ?

 

For that info you'd probably have to query the manufacturer's website with the part/model number. It shouldn't make a difference in terms of its functionality or compatibility in the notebook, however.

 

I just went to my local computer store:
In the store itself I saw Kingston 2GB 667MHZ DDR2 NON-ECC CL5 SODIMM and I have taken 2 of these (also now I'm SURE it's 100% compatible with my G1S: the seller checked it) (49,00 euro for one 2GB stick)
So my ram is ordered and should be in the store next week ^^

 

I believe that's not entirely true...

The Asus G1S has a Santa Rosa platform which runs at 800 Mhz FSB. so an 800 Mhz DIMM would not create a bottleneck as with 667 Mhz ram which does create a bottleneck.

When the Asus G1S first came out, there where no 800 Mhz DIMMs on the market thus they shipped them with 667 Mhz DIMMs.

Best regards,
RayanMX

 

If I want this upgrade, should I get 800Mhz then?

btw: is DDR3 ram possible on G1s? I think not, but I can only ask

 

Your thinking is correct. DDR3 will not fit into DDR2 memory slot.
800Mgz memory will give you an edge IF you are going to overclock your CPU/memory

 

I just installed 4 GB of 800 Mhz Crucial Memory on my G1S and I was surprised to see that Windows Vista Experience Index dropped from 4.8 to 4.7...

I can see only 3.0 GB even though I enabled PAE.

I really thought 800 Mhz memory would boost performance at least a bit...

I purchased this memory at Fry's electronics for $40 bucks plus tax, not a bad deal but so far I don't see the benefits...

Merry XMas,
RayanMX

 

Even your 800Mhz ram will run at 667Mhz, because the FSB:RAM ratio is fixed. However if you raise the FSB you can get your RAM running at 800Mhz (don't do this if you haven't any overclock experience and proper notebook cooling though!)

 

Thanks nattfoedd, but is there some place or document that I can read to see that spec limit you mentioned?

Remember that the Asus G1S is clocked at 800 Mhz FSB thanks to the Santa Rosa chipset.

Not that I don't trust you but I can't seem to find any information about that...

Thanks!

Oh and I've been testing my G1S with some applications that struggled in the past like Premiere Pro and Premiere Elements CS and now they literally FLY!

My games seem to run quite faster than before, or at least that's my impression... I will try to run some Frap Tests once the holidays are over.

Cheers!
RayanMX

 

If you're talking about which speed your ram is running at you can see that with various hardware monitoring tools, like everest, cpu-z etc.

 

Are you sure it doesn't make any difference if you put 667 or 800MHz RAM in a G1S?

Why is the FSB:RAM ratio fixed?

 

I don't believe so...

I ran CPUZ (Version 1.49) and got the following under SPD:

Max Bandwidth: PC2-6400 (400 Mhz)

And on the Timings Table I got:

Frequency: 266, 333 and 400 Mhz (CAS 4, 5, 6 respectively)

Remember that DDR2 will double Mhz numbers.

Cheers!
RayanMX

 

In this thread some people claim that the RAM works at 667 unless you are overclocking.

It's not that I don't trust the claims of nattfoedd and others, but some proof for the fixed FSB:RAM ratio would be nice. If this is common knowledge, even a Wikipedia link would be nice.

I'm still going to get some 667MHz RAM today. It's just easier available for me. To get some 800MHz RAM i would have to order it, and that results in too high shipping costs.

EDIT: Found my answer: http://en.wikipedia.org/wiki/Centrino#Santa_Rosa_platform_.282007.29

At least if I trust Wikipedia...

And now I have to upgrade my BIOS to 300...