A64 - Dual Channel Only?

[Ed Light]

Quickie -- can A 64's run in single channel?

I've discovered that my 2 sticks are incompatible with dual while running my
new kt880 (A7).


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[Yousuf Khan]

Quickie -- can A 64's run in single channel?

I've discovered that my 2 sticks are incompatible with dual while
running my new kt880 (A7).

Shouldn't be a problem, as long as you just put one of them on. If you put
two of them on, then they will be put into dual-channel mode again.

BTW, how do you know that they are incompatible for dual-channel? What
problems are you seeing?

Yousuf Khan

 

[Ed Light]

Shouldn't be a problem, as long as you just put one of them on. If you put
two of them on, then they will be put into dual-channel mode again.

BTW, how do you know that they are incompatible for dual-channel? What
problems are you seeing?

Yousuf Khan

Though both are Corsair Value Select, they are visually different and one is
dual sided and one is single sided.

So if I force it to dual channel in the bios and start to run memtest 86, it
crashes quickly and reboots.
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[Yousuf Khan]

Though both are Corsair Value Select, they are visually different and
one is dual sided and one is single sided.

So if I force it to dual channel in the bios and start to run memtest
86, it crashes quickly and reboots.

I think the dual-sided one is likely the one causing the crashing.

Yousuf Khan

 

[Wookie]

The 939 chips are dual memory controllers .. the 754 not .. opetron .. yes
... with registered memory.
THis doesn't mean you can't use two sticks of memory though with the 754
CPU.

 

[ThunderPC]

Though both are Corsair Value Select, they are visually different and one
is dual sided and one is single sided.

So if I force it to dual channel in the bios and start to run memtest 86,
it crashes quickly and reboots.

Have you tried the 2T setting, or does the BIOS even have the ability to
control that? It tends to help a lot with double sided RAM.

 

[Ed Light]

Have you tried the 2T setting, or does the BIOS even have the ability to
control that? It tends to help a lot with double sided RAM.

When I put it on manual, that is what is selected.


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[Carlo Razzeto]

Though both are Corsair Value Select, they are visually different and one
is dual sided and one is single sided.

So if I force it to dual channel in the bios and start to run memtest 86,
it crashes quickly and reboots.

<SNIP SIGNATURE>

You may want to double check what kind of double sided memory you have vs.
what your motherboard supports. In and of its self running a double sided
DIMM along a single sided DIMM shouldn't cause a problem. As a matter of
fact in my A64 system I'm running 2 single sided 256MB DIMMs along side a
single 512MB DIMM with out any issues.

Carlo

 

[DukeN]

Well, I'm no expert but IIRC the 754 doesn't support dual chan while the 939
does. I'm assuming you have dual chan capability if it lets you choose that in
the BIOS like you mentioned. I think the cause of the problem is different RAM
type (even tho the specs may be the same I believe the diff RAM layout makes a
diff). I'd just get two pieces of identical RAM and stick em in there.