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my SisSoft Sandra scores seem to low for what i have...


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System:

 

Asus P5N32-E SLI (Bios 1205)

Intel QX6800 (Quad Core 2.93Ghz)

2GB of latest PC2-8500 Dominator (2.1V)

2x 8800GTX cards (bridged)

850W PSU

Dual 74GB Raptors running in RAID0

Antec 900 Case

Vista Ultimate 32Bit (all pacthed up)

Creative Fatal1ty Pro PCI card

 

So, all components seem to be screaming, except for the RAM:

 

Sandra (latest download of lite) reports:

Int Buff'd iSSE2 Memory Bandwidth : 5589 MB/s

Float Buff'd iSSE2 Memory Bandwidth : 5573 MB/s

Results Interpretation : Higher index values are better.

Windows Experience Index

Current Chipset/Memory : 5.3

 

The current timings are : 5-4-4-12 2T with TrC of 16

Voltage is Auto, but reporting about 2.1V...FSB linked running at 1066Mhz

 

BIOS reports that it's running at 1066Mhz and DDR mode.

 

Seem like my timing values are pretty good, but don't seem to get the benchmarks other people seem to be getting around here... i would expect about 8000 MB/s or so....

 

Any ideas?

 

More Info: Enabled SLI ready in BIOS and set to MAX... most other things in BIOS like Spreadspectrum, Virtual, enhaced bit, disabled.... even disabled legacy USB support....

 

Thanks!

 

Sam

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By 'Settings' which settings were you looking for, since Memtest does not show other options.

 

The Dual Channel Mode should be shown. Are you certain you are running in Dual Channel Mode?

 

Try these settings and run Memtest again. Results?

 

Multiplier = 12

FSB = 266 (1067)

DRAM = Unlinked and set to 1066Mhz

 

Memory Timing

 

FSB - Memory Clock Mode: Unlinked

CPU FSB: 266 (1067)

CPU Multi: 12

DDR FSB: 1066

tCL: 5

tRCD: 4

tRP: 4

tRAS: 12

 

Advanced Memory Settings

tRRD: 10

tRC: 35

tWR: 10

tWTR: 10

tREF: 7.8us

Async Latency: Auto

CMD: 2T

 

CPU Spread Spectrum: Disabled

PCIE Spread Spectrum: Disabled

MCP PCIE Spread Spectrum: Disabled

SATA Spread Spectrum: Disabled

LDT Spread Spectrum: Disabled

 

CPU Internal Thermal Control: Enabled

Limit CPUID MaxVal: Enabled

Enhanced C1 (C1E): Enabled

Execute Disable Bit: Enabled

Virtualization Technology: Enabled

Enhanced Intel Speedstep Tech: Enabled

LDT Frequency: 5x

 

PCIEX16_1 Frequency (Mhz): 101

PCIEX16_2 Frequency (Mhz): 101

PCIEX16_3 Frequency (Mhz): 101

SPP<->MCP Ref Clock, Mhz: 201

 

-- Voltages --

 

Vcore = Auto

Vdimm (DRAM Voltage) = 2.2v

1.2v HT: Auto

NB Vcore: Auto

SB Vcore: Auto

CPU VTT: Auto

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Whn the BIOS posts, it reports 1066MHZ and Dual Data Rate Mode Enabled.... I know, it almost seems as though DDR is not enabled, i also have tried moving the RAM from the white slots to the blue with similar results... i will try your BIOS settings and report back... thanks.
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Whn the BIOS posts, it reports 1066MHZ and Dual Data Rate Mode Enabled.... I know, it almost seems as though DDR is not enabled, i also have tried moving the RAM from the white slots to the blue with similar results... i will try your BIOS settings and report back... thanks.

 

DDR is not configurable. I am speaking of Dual Channel Mode. Does Memtest show 128bit or 64bit?

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you can certainly disable it by not placing them in the correct slots.... again Mem Test only reports what i showed before....

 

i tried the BIOS settings you posted and a found a few things:

 

1. CPU multiplier of 12 would OC the processor. The Std multiplier for this CPU is 11 (Since i cannot find the option to set the FSB at 266)

 

2. the TWTR cannot be set to 10, max setting in BIOS is 7

3. tREF cannot be set to 7.8us, it has either 1or 2 or auto.

 

What version of memtest do you run, i have the latest ISO from the site and that is what it is reporting....

 

Still, MemTest reports the Memory the same way... I have a feeling we are dealing with different Mobo's the P5N32-E SLI i have is 680i chipset and BIOS 1205.....

 

Any ideas.... the timings seems to reflect that mem is NOT running in DDR mode, yet when the BIOS posts it clearly shows it's running in DDR.

 

i will post an image of the BIOS post shortly... and Mem Test running...

 

Sam

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you can certainly disable it by not placing them in the correct slots.... again Mem Test only reports what i showed before....

 

That is Dual Channel Mode, NOT DDR mode which is Double Data Rate Mode. DDR Mode is NOT configurable and runs on both the rise and fall of the sine signal. Dual Channel Mode is configurable. It is the interleaving of the channels. In single-channel mode, the Memory Controller moves 64 bits of data at a time whereas in dual-channel mode, it can move double that amount or 128 bits of data in optimal situations.

 

i tried the BIOS settings you posted and a found a few things:

 

1. CPU multiplier of 12 would OC the processor. The Std multiplier for this CPU is 11 (Since i cannot find the option to set the FSB at 266) [/Quote]

Yes, I pressed the wrong key. 11 is default.

 

2. the TWTR cannot be set to 10, max setting in BIOS is 7

3. tREF cannot be set to 7.8us, it has either 1or 2 or auto.

 

Set them both to Auto on your board then.

 

What version of memtest do you run, i have the latest ISO from the site and that is what it is reporting....

 

Still, MemTest reports the Memory the same way... I have a feeling we are dealing with different Mobo's the P5N32-E SLI i have is 680i chipset and BIOS 1205.....

 

I have worked with the Striker board more than a few times and they are quite alike so I am referencing my work from that board.

 

Memtest 1.70. Memtest is showing nothing for your chipset so it can not query for Dual Channel Mode. Download CPU-z:

 

http://www.cpuid.com/download/cpu-z-141.zip

 

Please print screen and post the shot for CPU and Memory. You can use photobucket.com to upload them.

 

Any ideas.... the timings seems to reflect that mem is NOT running in DDR mode, yet when the BIOS posts it clearly shows it's running in DDR.

 

You are confusing DDR with Dual Channel. They are not the same things.

 

Edit:

 

Your post shows that the DDR is running in Dual Channel Mode. What does memtest show for bandwidth?

 

Look at this testing:

 

http://www.hothardware.com/articles/Intel_Core_2_Extreme_QX6800/?page=3

 

Shows your processor with 680i and 800Mhz DDR2 @ 4-4-4-12 giving 5237 MB/s

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This is what CPUz reports (does an HTML dump, don't have to use images):

 

CPU-Z 1.41 report file

 

Processor(s)

 

Number of processors 1

Number of cores 4 per processor

Number of threads 4 (max 4) per processor

Name Intel Core 2 Extreme QX6800

Code Name Kentsfield

Specification Intel® Core2 Extreme CPU Q6800 @ 2.93GHz

Package Socket 775 LGA

Family/Model/Stepping 6.F.B

Extended Family/Model 6.F

Core Stepping G0

Technology 65 nm

Core Speed 2933.8 MHz

Multiplier x Bus speed 11.0 x 266.7 MHz

Rated Bus speed 1066.8 MHz

Stock frequency 2933 MHz

Instruction sets MMX, SSE, SSE2, SSE3, SSSE3, EM64T

L1 Data cache (per processor) 4 x 32 KBytes, 8-way set associative, 64-byte line size

L1 Instruction cache (per processor) 4 x 32 KBytes, 8-way set associative, 64-byte line size

L2 cache (per processor) 2 x 4096 KBytes, 16-way set associative, 64-byte line size

 

Chipset & Memory

 

Northbridge NVIDIA nForce 680i SLI SPP rev. A2

Southbridge NVIDIA 680i SLI MCP rev. A2

Graphic Interface PCI-Express

PCI-E Link Width x16

PCI-E Max Link Width x16

Memory Type DDR2

Memory Size 2048 MBytes

Memory Frequency 533.4 MHz (1:2)

CAS# Latency (tCL) 5.0 clocks

RAS# to CAS# (tRCD) 4 clocks

RAS# Precharge (tRP) 4 clocks

Cycle Time (tRAS) 12 clocks

Bank Cycle Time (tRC) 16 clocks

Command Rate (CR) 2T

 

System

 

System Manufacturer System manufacturer

System Name System Product Name

System S/N System Serial Number

Mainboard Vendor ASUSTeK Computer INC.

Mainboard Model P5N32-E SLI

BIOS Vendor Phoenix Technologies, LTD

BIOS Version ASUS P5N32-E SLI ACPI BIOS Revision 1205

BIOS Date 08/22/2007

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It looks all correct to me. The dump does not show Dual Channel Enabled but your Boot screen does. That link I posted shows where your sysem would be with DDR2 800 @ 5237MB/s and you are at 5589 with your 1066. Probably all at stock is doing this. Remember that when you overclock, you also increase all the busses which will show greater throughput.

 

Here's one I am working on right now. It's at 3.4GHz with 1066 DRAM at 1150Mhz and 5-5-5-12 on P5K-E. A 9300MB/s read.

 

http://i93.photobucket.com/albums/l74/Barkiss1/test.jpg

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Ahhh, so my numbers are pretty much in line with the test.... should i not expect better numbers with 8500?

 

You're still running at defaults and you can not compare your default FSB with overclocked ones. You will easily lose out. You are running faster than the 5200MB/s @ 800Mhz.

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