SKT-754 Memory

[Pete]

If I get a socket-754 mobo am I better gettting a 1GB DDR DIMM or 2 x 512MB?

 

[Miss Perspicacia Tick]

If I get a socket-754 mobo am I better gettting a 1GB DDR DIMM or 2 x
512MB?

Dual channel produces best performance, so 2x512MB.

 

[John]

Dual channel produces best performance, so 2x512MB.

Its good to get it anyway cause he may upgrade but I dont think the
754s have dual channel if I recall correctly . Its the 939 and 940
though not that really that big of a deal.

You can get some good deals on 512 3200 sticks now.

 

[D & B]

no Dual channel on a socket 754 board...so Miss Perspicacia Tick has no clue

 

[John]

no Dual channel on a socket 754 board...so Miss Perspicacia Tick has no clue

Well weve all made mistakes, I make them all the time.
In fact we need a edit function on these posts so we can go back and
correct them.

 

[Miss Perspicacia Tick]

Well weve all made mistakes, I make them all the time.
In fact we need a edit function on these posts so we can go back and
correct them.

That's funny because I'm using a socket 754 board and, yes, it's dual
channel. So, I would say it's 'John Smith' who has no clue.

 

[John]

That's funny because I'm using a socket 754 board and, yes, it's dual
channel. So, I would say it's 'John Smith' who has no clue.

Are you sure you arent running a 940 socket?

I know up until recently the common saying was that 754 =
singlechannel memory and 939/940=dual channel mem. That was one of the
advantages of going 939.

See heres an excerpt from a Guide at one site:

http://www.short-media.com/review.php?r=272

Athlon 64: Socket 754

1. Cannot run dual-channel. The Socket 754/939/940 interfaces migrated
the memory controller from the motherboard to the CPU die, as such,
the CPU's integrated memory controller must support dual-channel. No
product on the socket 754 interface, including the Athlon 64, can
support dual channel memory




Now the funny thing is I have seen some descriptions of some 754
socket boards described in website ads as "dual channel" . Im not sure
if thats a mistake or if there was some rare or new 754 socket that
does actually have dual channel capability. But in general the 754
boards that most people have if there is such a dual channel creature
--- probably doesnt have the dual channel mem feature.

 

[YanquiDawg]

You're right. The 754 chipset doesn't support dual channel.

 

[/mel/]

Well weve all made mistakes, I make them all the time.
In fact we need a edit function on these posts so we can go back and
correct them.

It's called 'cancel' or 'withdraw', and most clients support it, as do most
news servers. =

 

[/mel/]

That's funny because I'm using a socket 754 board and, yes, it's dual
channel. So, I would say it's 'John Smith' who has no clue.

No, you're not, and yes, you are. On the AMD64 the memory controller is
integrated with the CPU. Part of the reason for the increase in the number
of pins on the 939-pin FX series is to handle the extra signals required for
dual-channel.

Compare the diagrams at the bottom of the following two pages -

http://www.sis.com/products/chipsets/oa/athlon64/755fx.htm
http://www.sis.com/products/chipsets/oa/athlon64/755.htm

(note that the actual chipset is irrelevant, so just because this is data
from SIS does not mean that it doesn't apply to you because you have a
different chipset).

 

[John]

No, you're not, and yes, you are. On the AMD64 the memory controller is
integrated with the CPU. Part of the reason for the increase in the number
of pins on the 939-pin FX series is to handle the extra signals required for
dual-channel.

Not that big of a deal actually and her advice is actually sound as
they say smaller sticks (less than a gig) tend to cost less and in the
future you can use them if you do upgrade to a dual channel if you
have a system like that. No biggie. The only downside of getting
smaller sticks is if you want to add a lot more mem later cause we are
limited to a few mem slots. But most people dont need 4 gigs or
whatever.

In fact when I read it I had to sweep the cobwebs from my brain since
I havent really thought of the 754 since the 939 came out.