question on my PC3200

I have a quick question about my memory and setup in terms of overclocking..

I purchased Corsair PC3200 memory with the expectation that it can run at
400mhz, but it seems to fail in this ambition (i get a memory error in the
bios, have to reboot the machine). When I when I try to overclock the FSB
to 400Mhz in the bios (anything over 167) I get memory errors...

motherboard: A7N8X 2.0 (which should run at 400mhz ..)
cpu: AthlonXP 2600+ 333

SiSoftware Sandra reports my memory as the following (I have 2x512mb):

Memory Module 1 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)
Memory Module 2 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)

I don't understand why it says "PC2700" in there at the end, but '3200' in
the beginning. When I bought this memory it was listed as PC3200. And it
says it is limited to 167MHz, which also seems to be the barrier to the BIOS
when I try to overclock.. (i can't get it higher than 333mhz fsb)

any ideas as to what my problem is?

Thanks very much
dxtx

wrote:
I have a quick question about my memory and setup in terms of
overclocking..

I purchased Corsair PC3200 memory with the expectation that it can
run at 400mhz, but it seems to fail in this ambition (i get a memory
error in the bios, have to reboot the machine). When I when I try
to overclock the FSB to 400Mhz in the bios (anything over 167) I get
memory errors...

motherboard: A7N8X 2.0 (which should run at 400mhz ..)
cpu: AthlonXP 2600+ 333

SiSoftware Sandra reports my memory as the following (I have 2x512mb):

Memory Module 1 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)
Memory Module 2 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)

I don't understand why it says "PC2700" in there at the end, but
'3200' in the beginning. When I bought this memory it was listed as
PC3200. And it says it is limited to 167MHz, which also seems to be
the barrier to the BIOS when I try to overclock.. (i can't get it
higher than 333mhz fsb)

any ideas as to what my problem is?

SiSoft Sandra sucks. It ain't that accurate. I would say that your RAM is
rated CAS 2 to 166MHz and CAS2.5 to 200MHz. Do you have it set to CAS 2
perchance? Drop it to 2.5 and try it again.
--
~misfit~

"~misfit~" wrote in message
...
wrote:
I have a quick question about my memory and setup in terms of
overclocking..

I purchased Corsair PC3200 memory with the expectation that it can
run at 400mhz, but it seems to fail in this ambition (i get a memory
error in the bios, have to reboot the machine). When I when I try
to overclock the FSB to 400Mhz in the bios (anything over 167) I get
memory errors...

motherboard: A7N8X 2.0 (which should run at 400mhz ..)
cpu: AthlonXP 2600+ 333

SiSoftware Sandra reports my memory as the following (I have 2x512mb):

Memory Module 1 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)
Memory Module 2 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)

I don't understand why it says "PC2700" in there at the end, but
'3200' in the beginning. When I bought this memory it was listed as
PC3200. And it says it is limited to 167MHz, which also seems to be
the barrier to the BIOS when I try to overclock.. (i can't get it
higher than 333mhz fsb)

any ideas as to what my problem is?

SiSoft Sandra sucks. It ain't that accurate. I would say that your RAM is
rated CAS 2 to 166MHz and CAS2.5 to 200MHz. Do you have it set to CAS 2
perchance? Drop it to 2.5 and try it again.
--
~misfit~

Is there a program that does what Sandra does, but better? I just tried
setting the CAS to 2.5 .. in the bios it was set at 2T, I changed that to
2.5. I still had the memory error (have to reset CMOS) when I set the FSB
to 200Mhz. As far as I know, all PC3200 memory supports 400Mhz FSB, am I
wrong? It would suck if my memory is only rated to 333Mhz FSB

thanks for your help, i appreciate it..

dxtx

Here's your memory (
http://www.corsairmicro.com/corsair/...512-3200c2.pdf ), says
nothing about PC2700, so I don't know where that's coming from. Suppose to
run 200MHz clock, 2.5-3-3-6 on AMD, a little faster on Intel (2-3-3-6). I
assume this is the SPD results during config.

So there's no reason you shouldn't be able to run the Athlon (@ 166MHz
clock) in sync (1:1) w/ your memory (underclocked @ 166MHz). Now, as you
increase the CPU FSB, are you saying you are getting memory errors?? I
assume the CPU FSB will OC even a little, so it would surprise me to see
errors w/ even 167MHz (1:1).

What I'm wondering is whether maybe you're actually trying to run async
(e.g., 5:6, 166 / 5 * 6 = 200, not even sure this is possible w/ NForce2
chipset, just speculating), so therefore everytime you OC the CPU FSB,
you're also overclocking the memory! If the memory is already tapped out at
PC3200 (200MHz clock), especially if perhaps you're trying to run 2-3-3-6
(not the certified 2.5.-3-3-6), then perhaps it just dies at even a hint
above 200MHz clock.

I'm just speculating, but it's my guess this is what you're trying to do.
Remember, every time you OC the CPU FSB, the memory is OC'd too! That's why
the proper thing to do w/ this CPU and memory is run 1:1! You're trying to
OC the FSB, but you don't want the memory holding you back. If you insist
on running the memory "at spec", 400MHz DDR, 5:6, you're asking for trouble!
If the memory has a little headroom left over, you'll make a little progress
w/ the FSB overclock. If not, the FSB overclock will die a quick death. It
sounds to me like this latter scenario is the problem

HTH

Jim


wrote in message
ink.net...
I have a quick question about my memory and setup in terms of
overclocking..

I purchased Corsair PC3200 memory with the expectation that it can run at
400mhz, but it seems to fail in this ambition (i get a memory error in the
bios, have to reboot the machine). When I when I try to overclock the
FSB
to 400Mhz in the bios (anything over 167) I get memory errors...

motherboard: A7N8X 2.0 (which should run at 400mhz ..)
cpu: AthlonXP 2600+ 333

SiSoftware Sandra reports my memory as the following (I have 2x512mb):

Memory Module 1 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)
Memory Module 2 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)

I don't understand why it says "PC2700" in there at the end, but '3200' in
the beginning. When I bought this memory it was listed as PC3200. And it
says it is limited to 167MHz, which also seems to be the barrier to the
BIOS
when I try to overclock.. (i can't get it higher than 333mhz fsb)

any ideas as to what my problem is?

Thanks very much
dxtx

Some of the PC3200 Corsair memory is 8-3-3-3 at 200Mhz. For example:


Alan

"Jim" wrote in message news:cynfc.3054$Yf6.468@fed1read07...
Here's your memory (
http://www.corsairmicro.com/corsair/...512-3200c2.pdf ),
says
nothing about PC2700, so I don't know where that's coming from. Suppose
to
run 200MHz clock, 2.5-3-3-6 on AMD, a little faster on Intel (2-3-3-6). I
assume this is the SPD results during config.

So there's no reason you shouldn't be able to run the Athlon (@ 166MHz
clock) in sync (1:1) w/ your memory (underclocked @ 166MHz). Now, as you
increase the CPU FSB, are you saying you are getting memory errors?? I
assume the CPU FSB will OC even a little, so it would surprise me to see
errors w/ even 167MHz (1:1).

What I'm wondering is whether maybe you're actually trying to run async
(e.g., 5:6, 166 / 5 * 6 = 200, not even sure this is possible w/ NForce2
chipset, just speculating), so therefore everytime you OC the CPU FSB,
you're also overclocking the memory! If the memory is already tapped out
at
PC3200 (200MHz clock), especially if perhaps you're trying to run 2-3-3-6
(not the certified 2.5.-3-3-6), then perhaps it just dies at even a hint
above 200MHz clock.

I'm just speculating, but it's my guess this is what you're trying to do.
Remember, every time you OC the CPU FSB, the memory is OC'd too! That's
why
the proper thing to do w/ this CPU and memory is run 1:1! You're trying
to
OC the FSB, but you don't want the memory holding you back. If you insist
on running the memory "at spec", 400MHz DDR, 5:6, you're asking for
trouble!
If the memory has a little headroom left over, you'll make a little
progress
w/ the FSB overclock. If not, the FSB overclock will die a quick death.
It
sounds to me like this latter scenario is the problem

HTH

Jim


wrote in message
ink.net...
I have a quick question about my memory and setup in terms of
overclocking..

I purchased Corsair PC3200 memory with the expectation that it can run
at
400mhz, but it seems to fail in this ambition (i get a memory error in
the
bios, have to reboot the machine). When I when I try to overclock the
FSB
to 400Mhz in the bios (anything over 167) I get memory errors...

motherboard: A7N8X 2.0 (which should run at 400mhz ..)
cpu: AthlonXP 2600+ 333

SiSoftware Sandra reports my memory as the following (I have 2x512mb):

Memory Module 1 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)
Memory Module 2 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)

I don't understand why it says "PC2700" in there at the end, but '3200'
in
the beginning. When I bought this memory it was listed as PC3200. And
it
says it is limited to 167MHz, which also seems to be the barrier to the
BIOS
when I try to overclock.. (i can't get it higher than 333mhz fsb)

any ideas as to what my problem is?

Thanks very much
dxtx

I gues I should have included the example:

http://www.newegg.com/app/ViewProduc...145-498&depa=0

This should not show up as C2, however.

Alan

"Alan Wright" alanatyahoodotcom wrote in message
...

Some of the PC3200 Corsair memory is 8-3-3-3 at 200Mhz. For example:


Alan

"Jim" wrote in message
news:cynfc.3054$Yf6.468@fed1read07...
Here's your memory (
http://www.corsairmicro.com/corsair/...512-3200c2.pdf ),
says
nothing about PC2700, so I don't know where that's coming from. Suppose
to
run 200MHz clock, 2.5-3-3-6 on AMD, a little faster on Intel (2-3-3-6).
I
assume this is the SPD results during config.

So there's no reason you shouldn't be able to run the Athlon (@ 166MHz
clock) in sync (1:1) w/ your memory (underclocked @ 166MHz). Now, as
you
increase the CPU FSB, are you saying you are getting memory errors?? I
assume the CPU FSB will OC even a little, so it would surprise me to see
errors w/ even 167MHz (1:1).

What I'm wondering is whether maybe you're actually trying to run async
(e.g., 5:6, 166 / 5 * 6 = 200, not even sure this is possible w/ NForce2
chipset, just speculating), so therefore everytime you OC the CPU FSB,
you're also overclocking the memory! If the memory is already tapped
out
at
PC3200 (200MHz clock), especially if perhaps you're trying to run
2-3-3-6
(not the certified 2.5.-3-3-6), then perhaps it just dies at even a hint
above 200MHz clock.

I'm just speculating, but it's my guess this is what you're trying to
do.
Remember, every time you OC the CPU FSB, the memory is OC'd too! That's
why
the proper thing to do w/ this CPU and memory is run 1:1! You're trying
to
OC the FSB, but you don't want the memory holding you back. If you
insist
on running the memory "at spec", 400MHz DDR, 5:6, you're asking for
trouble!
If the memory has a little headroom left over, you'll make a little
progress
w/ the FSB overclock. If not, the FSB overclock will die a quick death.
It
sounds to me like this latter scenario is the problem

HTH

Jim


wrote in message
ink.net...
I have a quick question about my memory and setup in terms of
overclocking..

I purchased Corsair PC3200 memory with the expectation that it can run
at
400mhz, but it seems to fail in this ambition (i get a memory error in
the
bios, have to reboot the machine). When I when I try to overclock
the
FSB
to 400Mhz in the bios (anything over 167) I get memory errors...

motherboard: A7N8X 2.0 (which should run at 400mhz ..)
cpu: AthlonXP 2600+ 333

SiSoftware Sandra reports my memory as the following (I have 2x512mb):

Memory Module 1 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)
Memory Module 2 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)

I don't understand why it says "PC2700" in there at the end, but
'3200'
in
the beginning. When I bought this memory it was listed as PC3200.
And
it
says it is limited to 167MHz, which also seems to be the barrier to
the
BIOS
when I try to overclock.. (i can't get it higher than 333mhz fsb)

any ideas as to what my problem is?

Thanks very much
dxtx

Hmm..., I don't use Corsair myself, but 3-3-3-8 is considered "extreme" for
PC3200?! Heck, I wouldn't even consider this acceptable for PC3500. And
$155 for only 512MB of it, to boot. The whole DDR scene is out of control,
pricing is almost mindless, just glad I don't need it.

My goodness, I bought Kingston HyperX KHX3200AK2, 1GB (2 x 512), 2-3-2-6-1
(runs 2-3-2-5-1 up to 218MHz), for $176 back in late Dec '03 (
http://www.ec.kingston.com/shop/part...=KHX3200AK2/1G )
.. And only 10 days ago, you could have picked up Kingston HyperX PC4000,
1GB, for $233, promo'd by Kingston direct. Today, that same PC4000 is $325!
On sale no less. (
http://www.ec.kingston.com/shop/part...o=KHX4000K2/1G )

This Corsair seems to be a *major* ripoff, if you ask me, even w/ today's
DDR prices.

HTH

Jim



"Alan Wright" alanatyahoodotcom wrote in message
...

I gues I should have included the example:


http://www.newegg.com/app/ViewProduc...145-498&depa=0

This should not show up as C2, however.

Alan

"Alan Wright" alanatyahoodotcom wrote in message
...

Some of the PC3200 Corsair memory is 8-3-3-3 at 200Mhz. For example:


Alan

"Jim" wrote in message
news:cynfc.3054$Yf6.468@fed1read07...
Here's your memory (

http://www.corsairmicro.com/corsair/...512-3200c2.pdf ),
says
nothing about PC2700, so I don't know where that's coming from.
Suppose
to
run 200MHz clock, 2.5-3-3-6 on AMD, a little faster on Intel
(2-3-3-6).
I
assume this is the SPD results during config.

So there's no reason you shouldn't be able to run the Athlon (@ 166MHz
clock) in sync (1:1) w/ your memory (underclocked @ 166MHz). Now, as
you
increase the CPU FSB, are you saying you are getting memory errors??
I
assume the CPU FSB will OC even a little, so it would surprise me to
see
errors w/ even 167MHz (1:1).

What I'm wondering is whether maybe you're actually trying to run
async
(e.g., 5:6, 166 / 5 * 6 = 200, not even sure this is possible w/
NForce2
chipset, just speculating), so therefore everytime you OC the CPU FSB,
you're also overclocking the memory! If the memory is already tapped
out
at
PC3200 (200MHz clock), especially if perhaps you're trying to run
2-3-3-6
(not the certified 2.5.-3-3-6), then perhaps it just dies at even a
hint
above 200MHz clock.

I'm just speculating, but it's my guess this is what you're trying to
do.
Remember, every time you OC the CPU FSB, the memory is OC'd too!
That's
why
the proper thing to do w/ this CPU and memory is run 1:1! You're
trying
to
OC the FSB, but you don't want the memory holding you back. If you
insist
on running the memory "at spec", 400MHz DDR, 5:6, you're asking for
trouble!
If the memory has a little headroom left over, you'll make a little
progress
w/ the FSB overclock. If not, the FSB overclock will die a quick
death.
It
sounds to me like this latter scenario is the problem

HTH

Jim


wrote in message
ink.net...
I have a quick question about my memory and setup in terms of
overclocking..

I purchased Corsair PC3200 memory with the expectation that it can
run
at
400mhz, but it seems to fail in this ambition (i get a memory error
in
the
bios, have to reboot the machine). When I when I try to overclock
the
FSB
to 400Mhz in the bios (anything over 167) I get memory errors...

motherboard: A7N8X 2.0 (which should run at 400mhz ..)
cpu: AthlonXP 2600+ 333

SiSoftware Sandra reports my memory as the following (I have
2x512mb):

Memory Module 1 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)
Memory Module 2 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)

I don't understand why it says "PC2700" in there at the end, but
'3200'
in
the beginning. When I bought this memory it was listed as PC3200.
And
it
says it is limited to 167MHz, which also seems to be the barrier to
the
BIOS
when I try to overclock.. (i can't get it higher than 333mhz fsb)

any ideas as to what my problem is?

Thanks very much
dxtx

wrote:
I have a quick question about my memory and setup in terms of
overclocking..

I purchased Corsair PC3200 memory with the expectation that it can
run at 400mhz, but it seems to fail in this ambition (i get a memory
error in the bios, have to reboot the machine). When I when I try
to overclock the FSB to 400Mhz in the bios (anything over 167) I get
memory errors...

motherboard: A7N8X 2.0 (which should run at 400mhz ..)
cpu: AthlonXP 2600+ 333

SiSoftware Sandra reports my memory as the following (I have 2x512mb):

Memory Module 1 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)
Memory Module 2 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)

I don't understand why it says "PC2700" in there at the end, but
'3200' in the beginning. When I bought this memory it was listed as
PC3200. And it says it is limited to 167MHz, which also seems to be
the barrier to the BIOS when I try to overclock.. (i can't get it
higher than 333mhz fsb)

any ideas as to what my problem is?

Thanks very much
dxtx

Run CPUZ and then click the about tab and then click on memory SPD. You can
find it here.
http://www.cpuid.com/cpuz.php

"neopolaris" . wrote in message ...


wrote:
I have a quick question about my memory and setup in terms of
overclocking..

I purchased Corsair PC3200 memory with the expectation that it can
run at 400mhz, but it seems to fail in this ambition (i get a memory
error in the bios, have to reboot the machine). When I when I try
to overclock the FSB to 400Mhz in the bios (anything over 167) I get
memory errors...

motherboard: A7N8X 2.0 (which should run at 400mhz ..)
cpu: AthlonXP 2600+ 333

SiSoftware Sandra reports my memory as the following (I have 2x512mb):

Memory Module 1 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)
Memory Module 2 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)

I don't understand why it says "PC2700" in there at the end, but
'3200' in the beginning. When I bought this memory it was listed as
PC3200. And it says it is limited to 167MHz, which also seems to be
the barrier to the BIOS when I try to overclock.. (i can't get it
higher than 333mhz fsb)

any ideas as to what my problem is?

Thanks very much
dxtx

Run CPUZ and then click the about tab and then click on memory SPD. You
can
find it here.
http://www.cpuid.com/cpuz.php

Ok, so CPUZ says Corsair DDR-SDRAM PC2700 - 512MB
for each DIMM(#1 and #2)
it also says Frequency 166Mhz

is it reporting PC2700 because it is inferring that from the Frequency?
ie: if i changed the Frequency in the BIOS to 200Mhz, would CPUZ tell me it
was PC3200?

The reason I ask is that I bought (and paid for) PC3200 from newegg a
couple years ago.. this makes me nervous that it is reporting the PC2700
when I had bought PC3200 :P

Thanks,
dxtx

wrote:
"neopolaris" . wrote in message
...


wrote:
I have a quick question about my memory and setup in terms of
overclocking..

I purchased Corsair PC3200 memory with the expectation that it can
run at 400mhz, but it seems to fail in this ambition (i get a memory
error in the bios, have to reboot the machine). When I when I try
to overclock the FSB to 400Mhz in the bios (anything over 167) I get
memory errors...

motherboard: A7N8X 2.0 (which should run at 400mhz ..)
cpu: AthlonXP 2600+ 333

SiSoftware Sandra reports my memory as the following (I have
2x512mb):

Memory Module 1 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)
Memory Module 2 : Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM
PC2700U-233-700 (CL2.5 up to 167MHz) (CL2 up to 167MHz)

I don't understand why it says "PC2700" in there at the end, but
'3200' in the beginning. When I bought this memory it was listed as
PC3200. And it says it is limited to 167MHz, which also seems to be
the barrier to the BIOS when I try to overclock.. (i can't get it
higher than 333mhz fsb)

any ideas as to what my problem is?

Thanks very much
dxtx

Run CPUZ and then click the about tab and then click on memory SPD.
You can find it here.
http://www.cpuid.com/cpuz.php

Ok, so CPUZ says Corsair DDR-SDRAM PC2700 - 512MB
for each DIMM(#1 and #2)
it also says Frequency 166Mhz

is it reporting PC2700 because it is inferring that from the
Frequency? ie: if i changed the Frequency in the BIOS to 200Mhz,
would CPUZ tell me it was PC3200?

The reason I ask is that I bought (and paid for) PC3200 from
newegg a couple years ago.. this makes me nervous that it is
reporting the PC2700 when I had bought PC3200 :P

Thanks,
dxtx

CPUZ reads the info put into the memory from the manufacturer. If it says
it's PC2700, it probably is. Plus, PC3200 wasn't around a couple years ago.