It should work as long as you run all of the memory at the slowest speed of
either pair of Dims through the BIOS setup. Certainly is you can get a pair
of 1GB DDR2 PC 6400 memory for around $50 it is a good deal.
"xguntherc" wrote in message
...

ok so tell me this.. I am going to get RAM right now. I have a freind
that works at COMP USA so I'm getting 25 percent off. can't say no to
that.. I'm gettin two 1GB Corsair XMS2 DHX chips, ddr2 pc-6400 at
800MHz.. I think that 2 GB will be enough.. plus i read up and corsair
is a highly recommended brand... so here is ONE more question. I was
told to pull out old ram instead of trying to match with my old stuff..
so my plan is to pull the two 512 cards out and put in these new ones..
but now I think about it can I pull them out and then put them in slot 3
and 4.. so I will have matching 1gb chips.. and the other dual channel
will be the stock matching 512's for a total of a lil over 3GB.. can i
do that, Will that work? or is it not good to mix sizes with the 2
channels. if anyone knows what I should do please let me kno. otherwise
I'm just using the two 1GB til i hear what to do with my old ones..
please get back to me ASAP.. thanks again everyone for ur input!

/Cory


--
xguntherc

You can try whatever you want. It won't hurt anything. To support dual
channel though, you need to install matching RAM in slots 1 and 3. if
you are going to try to use your old ram too, put it in slots 2 and 4.
Usually boards that support dual channel color code the slots. You'll
have two blue and two black. Might be different colors. Put matching
ram in matching color slots.

Please take a minute when you are done to let us know how it went. You
sure did your homework on this!

In my area, CompUSA is going out of business. You can't return
anything you buy. If your friend works there, he must know if that's
true for you or not. Just pointing that out. Good luck.

Paul


--
PMcGarr

case: antec p182
psu: corsair 750tx
mobo: asus maximus formula
cpu: intel q6600
ram: 8gb ocz ddr2 800mhz
vga: sapphire radeon hd3870 512mb
tv: sapphire theatrix 650pro
hdd: 2x wd caviar 250gb sata (raid 0)
hdd: 3x wd caviar 500gb sata (raid 5)
os: vista ultimate 64bit

"xguntherc" wrote in message
...

Ok everyone, bare with me here.. I have a
HP Pavillion a6009n with 1024 MB of PC2-4200 DDR2 RAM, It's two of the
512MB
GE Force 6150 and all that good stuff

My question for the forum is I want to add more RAM. I'm not sure how
it all works.. on Circuitcity.com you can enter ur exact comp model
number and it finds what ur computer needs.. so I've done that and have
decided to get Kingston or the ACP-EP,
both are 1GB DDR2, but both are PC2-5300 (667MHz)..
Thats what it said to get online.. so my question is:
1. is it ok to mix different brands of RAM,
2. I'm Running Dual Channel, with two 512 Cards is it bad to mix a
different kind, size, and speed in the 3rd slot... will it change how
the Dual Channel works... I'm not sure how all the RAM stuff works.. if
anyone can please please help me I'd really appreciate it. please
message me back here, or at

For mixing different vendors/sizes of RAM, it usually works if they are well
matched but no guaranty. The matching isn't just size, it is timing. Do
not be surprised if the old memory works, the new memory works but if you
add them together they do not. If dual channel, the opposite channel bank
should always be the same.

On one PC I have, it came with 2 x 512M, I added 2 x 1024M for a total of
3GB. Worked perfectly. With many PCs before this it seems to be the case
most of the time.

On a recent PC however I did have the following occur. The OEM memory
worked. The new memory worked. But if I put 2 OEM 1GB in and 2 new 2GB in
it would not work. I did chase down the issue to RAM timing, the new memory
was considerably faster. Do not mix new high performance memory with
standard OEM memory. Does not necessarily work.

In any case, research your PCs motherboard. Sometimes they have preferences
on how to load the memory. Largest first, opposing banks etc.

One other note, your motherboard may support more than 3GB of memory, but it
is a waste of your money to put more in it if the operating system isn't 64
bit.

wait a minute, why would i put the matching cards in 1 and 3.?? and yes
they are color coated. the stock ram was in the 2 blue, and i still have
2 black. so i pulled the old out and threw in my new ones.. (In the Blue
Slots) and also ur right. I didn't go to the compusa my freind works at
cuz online it said i had one right down the street.. so i went down, and
sure enough my bad luck it's all dark and shut DOWN.. no more compusa. I
still got ram, i found a good deal at bestbuy, i hate geting things from
there tho, i got the 2 pack of 1GB PNY DDR2 PC2-5300.. I see PNY brand
all the time but never have tried it.. so far they work great.. they
were 64.99 at best buy, then i stopped at circuit city to look and the
exact same 2 pack i got at bestbuy was $160.99.. seriously. no lie. it
was damn near $100 more at CC. so ya now running at 2 GB I do see
noticeable improvements.. much smoother.. PNY works great so far, no
complaints... but if I am ok to add those stock two 512's to the black
slots then I'm going to.. ur saying thats ok? or maybe i should toss the
stock hyundia lol and just get another 2 PNY or something nice.. let me
kno.. sorry message is so long. thanks again!


/Cory


--
xguntherc

I only have experience with the dual channel ram running in 1 an3, etc.
Maybe some boards do it differently. Most likely following the color
coding is the way to go. If you have different colored slots, put
similar ram in similar colored slots. Typically, you should look in a
manual or something. Your system should have info on this.

Yes! this is a long post. If you want to try the old memory, go ahead.
I'd take advantage of the fact that you have the chance now to buy two
more matching sticks and just get them. Put in four, forget about the
dual channel questions and forget about adding more ram for quite some
time.

Back to my original recommendation...get four sticks of the ram,
discard the old stuff, and enjoy. Anyway, sorry about the 1 and 3 slot
confusion. Your situation might be an OEM choice. Typically it's every
other slot, but that's up to the manufacture of the board.

Paul


--
PMcGarr

case: antec p182
psu: corsair 750tx
mobo: asus maximus formula
cpu: intel q6600
ram: 8gb ocz ddr2 800mhz
vga: sapphire radeon hd3870 512mb
tv: sapphire theatrix 650pro
hdd: 2x wd caviar 250gb sata (raid 0)
hdd: 3x wd caviar 500gb sata (raid 5)
os: vista ultimate 64bit

ya my slots are first 2 are blue, and second 2 are black.. so i put both
my sticks in the blue.. and ya i probably will discard these stock cards
and get 2 more PNY, maybe, not sure if I really need it cuz It's going
pretty fast as of now.. so thank you everyone for ur help. i appreciate
it.. happy posting!


--
xguntherc