some a8jm/a8js questions

1. how much faster is the t7200 processor in the a8js than the t2400 processor in a8jm? 30% faster? 50% faster? 100% faster? 200% faster? 1000% faster?

2. I got so glad this weekend when i opened my a8jm and realized that i have a single memory card of 1gb (ddr2 667), when i bought it on ebay the seller said it was 2x512mb dd2 533 lol, owned. Now its 10 time easier for me to upgrade to 2 gb! But i was wondering if it worst the money to upgrade to 2gb ddr2 667 and how much battery time will it take?? Will my battery time lower alot or what? Because if so it doesnt worst it, i really need the 3hrs on the a8jm... and even more :S

3. what happen if i buy a ddr2 533 (since its a lil cheaper) instead of 667 will it affect something? Will it work with a 667?

4. Why do my battery stop regarching at 97-98%. Like i know thats only 2-3% from 100% but its actually 5 to 10 mins of battery... which i really need sometime... some1 has an idea?

5. I heard that there is a way to overclock the 7600 in a8jm so it works like the 7700 in a8js. So how can i do that (which program)? Is it safe (will my a8jm transform into a bomb :S)??? Will it like kill the laptop earlier than it should?

thanks in advance, pce

 

1) I think its like 10% - 20% (optimistic) just look for some Core2Duo reviews/benchmarks on the web.
2) If you put in 533 ddr2, ur ddr667 will clock itself down to 533. No harm in doing that. Battery life hmm i dont think u'll notice any difference but im not sure. Ddr2 667 is actually slower than ddr2 533 cos of higher cas latencies so u might wanna stick with 533 if u really want all the performance u can get.
3) Answered above. Yes it will work but clock itself down.
4) Hmm thats strange, mine charges just fine. Install mobile meter or NHC and check your battery wear level. You can also boot into the BIOS and do a battery recalibration. There's another thread on battery wear in this forum with a lot of info.
4) Safe way of overclocking? haha again if you look in the A8Jm's owner lounge and other threads on this board you'll find lots of info on ppl overclocking. The simplest would be for you to try coolbits with ur nvidia drivers. Whether the performance will actually be as good as the 7700 i have some doubts.

 

actually, ram at 667 will show higher benchmarking scores, though they don't mean jack in reality

and when LI batteries reach around 90-95% they start using trickle charging which is a lot slower then before.

try leaving it off and letting it charge for an hour to see if it goes to 100% (though this should not be necessary)

for your 1) question, i believe most people don't buy the core 2 duo for it's performance since it's just 10-20% faster, i bought it cause core 2 duo supported 64 bit compatibility unlike core duo which offers future proofing.


you should NOT think about overclocking if you wanted 3 hours of battery life, unless you start downclocking in another profile

 

Actually, from what I've read DDR667 is on average 2-3% faster despite *higher CAS latencies. You definitely can't call it slower anyways. I mean the FSB is 667 so going 1:1 usually is a good thing.

 

source or link please

slower sustained rate i think but still show higher benches

 

yeah all benches i have seen show slower performance in benches with 667

 

where?

i can't seem to find ram speed in futuremark.com in orb

 

thanks man for the answers! I guess ill just buy a 533 since its cheaper lol whats the point anyway to pay more for somehting that doesnt seem to be faster
can you tell me more in detail how i can go in the bios to recalibrate my battery??

I am overcloking only for using on the ac adapter... when ill be using battery ill remove the overcloking.
Do you know at how much maximum i should overclock staying safe?

 

basically install coolbits and keep increasing the clock at one increment and test until it fails. Then clock it down one or two increments.
Then do the same for the memory.

 

The overall performance advantage of the T7200 C2D vs. the T2400 CD will be negligable for most day to day tasks, including gaming. Where you will notice a substantial improvement is on CPU intensive tasks, especially those that are dependant on cache memory, like audio/video encoding. The T7200 has double the L2 cache of the T2400.

Have a look at the SuperPI scores for the T7200 vs. the T2500 to illustrate my point... SuperPI runs almost entirely within L2 cache.

 

Exactly -you'd really have to be maxing out the CPU(s) to notice any difference -and even then you might need a stop watch...

 

leave it charging for a long time. This is a sign the battery is going bad. On the cells in the battery isnt charging fully.[/quote]

Overclocking the 7600 almost gets to the stock speed of the 7700 so that makes sense.

But what youre probably talking about is that the gpu is removable and if you could buy a 7700 someday you could PROBABLY replace it.
No one has done this yet though.

 

is 7600 in A8Jm a MXM card? what type of MXM is it exactly?
i know that 7700 in A8Js is MXM Type-III

 

they are both a mirror image of the mxm type 2 card.

This means the card is the exact same size and format except its in reverse.

As far as I know they are only compatible with eachother although i suspect the s62j and the a8jc is compatible as well.


Ive never seen a s62j owner here on nbr.
The 512 mb gpu for the a8jm is for sale at the asus e store for 155$. Im sure a s62j owner would want to look into it but first we have to find one.