How to tell if running in dual channel mode?

Is there any way to tell if your system is actually running in dual
channel mode?

Although my system is setup and configured for it, seems programs are
reporting its not.

What gives?


Albatron K8X800ProII
Athlon64 3200+
OCZ EL DDR PC-3200 Dual Channel Platinum

Bios flashes '400M' whether I have one or both sticks installed.

CPUZ show Channels# 'single' whether I have one or both sticks installed.

Sandra says 1 in channel area also.


Sandra says:
SiSoftware Sandra

Benchmark Results
RAM Bandwidth Int Buffered iSSE2 : 2964MB/s
RAM Bandwidth Float Buffered iSSE2 : 2961MB/s

Int Buffered iSSE2 (Integer STREAM) Results Breakdown
Assignment : 2951MB/s
Scaling : 2966MB/s
Addition : 2971MB/s
Triad : 2970MB/s
Data Item Size : 16-bytes
Buffering Used : Yes
Offset Displacement Used : Yes
Bandwidth Efficiency : 92% (estimated)

Float Buffered iSSE2 (Float STREAM) Results Breakdown
Assignment : 2957MB/s
Scaling : 2968MB/s
Addition : 2957MB/s
Triad : 2962MB/s
Data Item Size : 16-bytes
Buffering Used : Yes
Offset Displacement Used : Yes
Bandwidth Efficiency : 92% (estimated)

Performance Test Status
Run ID : DEFAULT on Saturday, March 06, 2004 at 7:41:13 PM
Memory Used by Test : 511MB
NUMA Support : No
SMP Test : No
Total Test Threads : 1
SMT Test : No
Dynamic MP/MT Load Balance : No
Processor Affinity : No
Page Size : 4kB
Use Large Memory Pages : No

Chipset 1
Model : Albatron Corp Apollo K8HTB CPU to PCI Bridge
Front Side Bus Speed : 2x 201MHz (402MHz data rate)
In/Out Width : 16-bit / 16-bit
Maximum Bus Bandwidth : 1608MB/s (estimated)

Logical/Chipset 1 Memory Banks

Chipset 2
Model : Advanced Micro Devices (AMD) Athlon 64 / Opteron HyperTransport
Technology Configuration
Front Side Bus Speed : 2x 804MHz (1608MHz data rate)
In/Out Width : 16-bit / 16-bit
Maximum Bus Bandwidth : 6432MB/s (estimated)

Logical/Chipset 2 Memory Banks
Bank 0 : 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Bank 1 : 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Bank 2 : 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Bank 3 : 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Channels : 1
Bank Interleave : 4-way
Speed : 2x 201MHz (402MHz data rate)
Width : 64-bit
Maximum Memory Bus Bandwidth : 3216MB/s (estimated)

Features
MMX Technology : Yes
SSE Technology : Yes
SSE2 Technology : Yes
SSE3 Technology : No
EMMX - Extended MMX Technology : Yes
HTT - Hyper-Threading Technology : No

Logical/Chipset 2 Memory Banks
Bank 0: 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Bank 1: 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Bank 2: 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Bank 3: 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Channels: 1
Bank Interleave: 4-way
Speed: 2x 201MHz (402MHz data rate)
Width: 64-bit
Maximum Memory Bus Bandwidth: 3216MB/s (estimated)



CPU-Z says:
CPU-Z version 1.21
Memory Modules Serial Presence Detect (SPD)

Module #1

General
Memory type DDR-SDRAM
Manufacturer (ID) OCZ (7F7F7F7FB0000000)
Size 512 MBytes
Max bandwidth PC3200 (200 MHz)
Part number OCZ4001024ELDCPE-K

Attributes
Number of banks 2
Data width 64 bits
Correction None
Registered no
Buffered no

Timings table
Frequency (MHz) 200
CAS# 2.0
RAS# to CAS# delay 3
RAS# Precharge 3
TRAS# 6


Module #2

General
Memory type DDR-SDRAM
Manufacturer (ID) OCZ (7F7F7F7FB0000000)
Size 512 MBytes
Max bandwidth PC3200 (200 MHz)
Part number OCZ4001024ELDCPE-K

Attributes
Number of banks 2
Data width 64 bits
Correction None
Registered no
Buffered no

Timings table
Frequency (MHz) 200
CAS# 2.0
RAS# to CAS# delay 3
RAS# Precharge 3
TRAS# 6

Destroy wrote:
Is there any way to tell if your system is actually running in dual
channel mode?

Although my system is setup and configured for it, seems programs are
reporting its not.

What gives?


Albatron K8X800ProII
Athlon64 3200+
OCZ EL DDR PC-3200 Dual Channel Platinum

Bios flashes '400M' whether I have one or both sticks installed.

CPUZ show Channels# 'single' whether I have one or both sticks
installed.

Sandra says 1 in channel area also.


Sandra says:
SiSoftware Sandra

Benchmark Results
RAM Bandwidth Int Buffered iSSE2 : 2964MB/s
RAM Bandwidth Float Buffered iSSE2 : 2961MB/s

Int Buffered iSSE2 (Integer STREAM) Results Breakdown
Assignment : 2951MB/s
Scaling : 2966MB/s
Addition : 2971MB/s
Triad : 2970MB/s
Data Item Size : 16-bytes
Buffering Used : Yes
Offset Displacement Used : Yes
Bandwidth Efficiency : 92% (estimated)

Float Buffered iSSE2 (Float STREAM) Results Breakdown
Assignment : 2957MB/s
Scaling : 2968MB/s
Addition : 2957MB/s
Triad : 2962MB/s
Data Item Size : 16-bytes
Buffering Used : Yes
Offset Displacement Used : Yes
Bandwidth Efficiency : 92% (estimated)

Performance Test Status
Run ID : DEFAULT on Saturday, March 06, 2004 at 7:41:13 PM
Memory Used by Test : 511MB
NUMA Support : No
SMP Test : No
Total Test Threads : 1
SMT Test : No
Dynamic MP/MT Load Balance : No
Processor Affinity : No
Page Size : 4kB
Use Large Memory Pages : No

Chipset 1
Model : Albatron Corp Apollo K8HTB CPU to PCI Bridge
Front Side Bus Speed : 2x 201MHz (402MHz data rate)
In/Out Width : 16-bit / 16-bit
Maximum Bus Bandwidth : 1608MB/s (estimated)

Logical/Chipset 1 Memory Banks

Chipset 2
Model : Advanced Micro Devices (AMD) Athlon 64 / Opteron
HyperTransport Technology Configuration
Front Side Bus Speed : 2x 804MHz (1608MHz data rate)
In/Out Width : 16-bit / 16-bit
Maximum Bus Bandwidth : 6432MB/s (estimated)

Logical/Chipset 2 Memory Banks
Bank 0 : 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Bank 1 : 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Bank 2 : 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Bank 3 : 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Channels : 1
Bank Interleave : 4-way
Speed : 2x 201MHz (402MHz data rate)
Width : 64-bit
Maximum Memory Bus Bandwidth : 3216MB/s (estimated)

Features
MMX Technology : Yes
SSE Technology : Yes
SSE2 Technology : Yes
SSE3 Technology : No
EMMX - Extended MMX Technology : Yes
HTT - Hyper-Threading Technology : No

Logical/Chipset 2 Memory Banks
Bank 0: 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Bank 1: 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Bank 2: 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Bank 3: 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Channels: 1
Bank Interleave: 4-way
Speed: 2x 201MHz (402MHz data rate)
Width: 64-bit
Maximum Memory Bus Bandwidth: 3216MB/s (estimated)


SiSoft Sandra Sucks. It's for newbies and girls.

CPU-Z says:
CPU-Z version 1.21
Memory Modules Serial Presence Detect (SPD)

snip a whole lot of stuff that doesn't relate to dual/single channel

I use CPU-Z 1.20 and, under the memory tab, right at the top, in the
'General' area, before you get to those SPD etc details, it says: Size: 512.
Channels #: Dual.
--
~misfit~

Destroy wrote:
Is there any way to tell if your system is actually running in dual
channel mode?
[...]
Albatron K8X800ProII
Athlon64 3200+
OCZ EL DDR PC-3200 Dual Channel Platinum

In your case it's easy. The A64 only supports single-channel memory, so
that's all you're getting

[...]

--
Michael Brown
www.emboss.co.nz : OOS/RSI software and more
Add michael@ to emboss.co.nz - My inbox is always open

Destroy wrote:
Is there any way to tell if your system is actually running in dual
channel mode?

Although my system is setup and configured for it, seems programs are
reporting its not.

What gives?


Albatron K8X800ProII
Athlon64 3200+
OCZ EL DDR PC-3200 Dual Channel Platinum


so you bought a single channel cpu and motherboard and expect it to do dual
channel ?

Someome did not do their homework


On Sun, 7 Mar 2004 12:31:54 -0000, "Geoff"
wrote:

Destroy wrote:
Is there any way to tell if your system is actually running in dual
channel mode?

Although my system is setup and configured for it, seems programs are
reporting its not.

What gives?


Albatron K8X800ProII
Athlon64 3200+
OCZ EL DDR PC-3200 Dual Channel Platinum


so you bought a single channel cpu and motherboard and expect it to do dual
channel ?

In your case it's easy. The A64 only supports single-channel memory, so
that's all you're getting


Doh. I didn't realize the 64 vs FX main difference was the memory
controller. But actually my main confusion was mistaking DDR for meaning
and relating to Dual Channel, which I know now is not. Thanks for the
heads up all.

Bit of research found me this:
"In fact, Athlon 64 differs from its elder brother, Athlon 64 FX, only
by the memory controller (and the packaging form-factor, of course).
Although despite that, both CPUs are designed from one and the same
silicon die. The memory controller of Athlon 64 is a single-channel one,
and this is its weak point and at the same time an advantage compared
with the Athlon 64 FX. The bad thing about a single-channel memory
controller in Athlon 64 is evident: it is the lower theoretical memory
bus bandwidth. Keeping in mind that Athlon 64 can work with DDR400
memory, the maximum bandwidth of the memory controller integrated into
the CPU equals 3.2GB/s. It is twice as little as this parameter value by
Athlon 64 FX. The advantage of the single-channel memory controller of
Athlon 64 implies that unlike the controller of Athlon 64 FX, this one
supports regular non-registered memory modules. These memory modules are
certainly cheaper than the Registered ones, feature more aggressive
timing settings and work faster than the Registered ones even if the
timing settings are the same in both cases. So, if we put it into more
formal words, despite the lower bandwidth provided by the Athlon 64
memory controller, the memory subsystem using it boasts lower latencies,
which we will illustrate with actual examples later in this article."

At least you don't have to waste your money buying matched sets of DDR RAM
at a gawd-awful premium.

"Geoff" wrote in message
...
Destroy wrote:
Is there any way to tell if your system is actually running in dual
channel mode?

Although my system is setup and configured for it, seems programs are
reporting its not.

What gives?


Albatron K8X800ProII
Athlon64 3200+
OCZ EL DDR PC-3200 Dual Channel Platinum


so you bought a single channel cpu and motherboard and expect it to do
dual
channel ?

"Matched sets" and Arctic Silver; both triumphs of vanity over sanity.

--
Phil Weldon, pweldonatmindjumpdotcom
For communication,
replace "at" with the 'at sign'
replace "mindjump" with "mindspring."
replace "dot" with "."


"JonB" wrote in message
...
At least you don't have to waste your money buying matched sets of DDR RAM
at a gawd-awful premium.

When you first bootup or reboot your PC,, you should see a message
just before BIOS goes looking for IDE devices, reading "Memory dual
channel data mode enabled",, or similar, somewhere near the top of the
screen..

Well, that's what I see anyway from my Gigabyte 7N400-L board...
****************************************
On Sun, 07 Mar 2004 01:46:21 GMT, Destroy wrote:

Is there any way to tell if your system is actually running in dual
channel mode?

Although my system is setup and configured for it, seems programs are
reporting its not.

What gives?


Albatron K8X800ProII
Athlon64 3200+
OCZ EL DDR PC-3200 Dual Channel Platinum

Bios flashes '400M' whether I have one or both sticks installed.

CPUZ show Channels# 'single' whether I have one or both sticks installed.

Sandra says 1 in channel area also.


Sandra says:
SiSoftware Sandra

Benchmark Results
RAM Bandwidth Int Buffered iSSE2 : 2964MB/s
RAM Bandwidth Float Buffered iSSE2 : 2961MB/s

Int Buffered iSSE2 (Integer STREAM) Results Breakdown
Assignment : 2951MB/s
Scaling : 2966MB/s
Addition : 2971MB/s
Triad : 2970MB/s
Data Item Size : 16-bytes
Buffering Used : Yes
Offset Displacement Used : Yes
Bandwidth Efficiency : 92% (estimated)

Float Buffered iSSE2 (Float STREAM) Results Breakdown
Assignment : 2957MB/s
Scaling : 2968MB/s
Addition : 2957MB/s
Triad : 2962MB/s
Data Item Size : 16-bytes
Buffering Used : Yes
Offset Displacement Used : Yes
Bandwidth Efficiency : 92% (estimated)

Performance Test Status
Run ID : DEFAULT on Saturday, March 06, 2004 at 7:41:13 PM
Memory Used by Test : 511MB
NUMA Support : No
SMP Test : No
Total Test Threads : 1
SMT Test : No
Dynamic MP/MT Load Balance : No
Processor Affinity : No
Page Size : 4kB
Use Large Memory Pages : No

Chipset 1
Model : Albatron Corp Apollo K8HTB CPU to PCI Bridge
Front Side Bus Speed : 2x 201MHz (402MHz data rate)
In/Out Width : 16-bit / 16-bit
Maximum Bus Bandwidth : 1608MB/s (estimated)

Logical/Chipset 1 Memory Banks

Chipset 2
Model : Advanced Micro Devices (AMD) Athlon 64 / Opteron HyperTransport
Technology Configuration
Front Side Bus Speed : 2x 804MHz (1608MHz data rate)
In/Out Width : 16-bit / 16-bit
Maximum Bus Bandwidth : 6432MB/s (estimated)

Logical/Chipset 2 Memory Banks
Bank 0 : 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Bank 1 : 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Bank 2 : 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Bank 3 : 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Channels : 1
Bank Interleave : 4-way
Speed : 2x 201MHz (402MHz data rate)
Width : 64-bit
Maximum Memory Bus Bandwidth : 3216MB/s (estimated)

Features
MMX Technology : Yes
SSE Technology : Yes
SSE2 Technology : Yes
SSE3 Technology : No
EMMX - Extended MMX Technology : Yes
HTT - Hyper-Threading Technology : No

Logical/Chipset 2 Memory Banks
Bank 0: 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Bank 1: 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Bank 2: 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Bank 3: 256MB DDR-SDRAM 2.0-3-3-3CL 2CMD
Channels: 1
Bank Interleave: 4-way
Speed: 2x 201MHz (402MHz data rate)
Width: 64-bit
Maximum Memory Bus Bandwidth: 3216MB/s (estimated)



CPU-Z says:
CPU-Z version 1.21
Memory Modules Serial Presence Detect (SPD)

Module #1

General
Memory type DDR-SDRAM
Manufacturer (ID) OCZ (7F7F7F7FB0000000)
Size 512 MBytes
Max bandwidth PC3200 (200 MHz)
Part number OCZ4001024ELDCPE-K

Attributes
Number of banks 2
Data width 64 bits
Correction None
Registered no
Buffered no

Timings table
Frequency (MHz) 200
CAS# 2.0
RAS# to CAS# delay 3
RAS# Precharge 3
TRAS# 6


Module #2

General
Memory type DDR-SDRAM
Manufacturer (ID) OCZ (7F7F7F7FB0000000)
Size 512 MBytes
Max bandwidth PC3200 (200 MHz)
Part number OCZ4001024ELDCPE-K

Attributes
Number of banks 2
Data width 64 bits
Correction None
Registered no
Buffered no

Timings table
Frequency (MHz) 200
CAS# 2.0
RAS# to CAS# delay 3
RAS# Precharge 3
TRAS# 6

On Sun, 07 Mar 2004 18:00:39 GMT, "Phil Weldon"
wrote:


"Matched sets" and Arctic Silver; both triumphs of vanity over sanity.


Nicely put...

"Wants" vs "Needs"..

Everybody wants it but everybody doesn't want to pay for it...