Asus P5K Deluxe - Strap Changed @500FSB ! - Page 2 - Overclock.net

Silviastud · 06-10-07

Well it's a very stead climb. I'm willing to be that's estimated results and not real.

eva2000 · 06-10-07

Quote:

Originally Posted by hiwa

..

yeah dinos' graph with P5K non-deluxe

Quote:

Originally Posted by Wankerfx

Welcome to OCN Eva2000!

I've seen your stuff at XS and I'm glad you checked us out.

thanks for the welcome

Registered quite a while ago hehe

Quote:

Originally Posted by MADMAX22

Nice clocks there, that crucial looks like its doing pretty good for ya.

yeah very nice 5-5-5-x but low 4-4-4-x around 540-550mhz

Quote:

Originally Posted by Tiramisu

weird how this chart doesn't correspond to EVA2000's 500 Strap Change findings?! The chart still shows marginal memory bandwidth gain from 490 to 500+ FSB.

dinos' graph there with P5K non-deluxe and different bios.. could be different to P5K Deluxe with 0311 official bios.

The Stilt has figured out the strap changes for P5K Deluxe/P35 chipsets http://www.xtremesystems.org/forums/...9&postcount=17

Quote:

Originally Posted by The Stilt

On Asus P5K-series there are two strap changes:

At 293FSB the board changes FSEL strap to 1333FSB to make more memory dividers available. This doesn´t have any effect to performance.

The performance level is also changed for following dividers:

1:2 Performance level changes from level 2 to level 1

Level 1 is the tightest possible, so expect some huge bandwidth

Dividers 3:5 & 1:2 are FSEL strapped to 800FSB.

At 500FSB the performance level of all dividers are set more loose.

1:1 Performance level changes from level 6 to level 10.
Level 10 is the loosest one. Usually the chipset can handle level 5 just fine

5:6 Performance level changes from level 5 to level 8.
Setting level 4 should not be a problem.

4:5 Performance level changes from level 4 to level 7.
Setting level 4 - 3 should be fine.

Since the memory frequency would get a bit high at bigger dividers I don´t have actual values for them. But I recon the values would be following:

2:3 Level 3 -> Level 6
5:8 Level 4 -> Level 7
3:5 Level 2 -> Level 5
1:2 Level 1 -> Level 4

eva2000 · 06-16-07

E6700 @6x499FSB vs 6x500FSB
Strap change tests

Further strap tests @499FSB vs @500FSB, but this time I'm using E6700 L629B079 B2 retail cpu and dropped cpu multiplier down to 6x so it would be easier for folks to compare with their own tests. I'm running 2x1 GB Crucial Ballistix PC2-8500 @500Mhz 4-4-4-5 2-25-2-2-5 at 2.15v for all tests.

I'm testing 4 configurations:

6x499FSB 1:1 boot
6x499FSB 1:1 boot setFSB 500FSB
6x500FSB 1:1 boot
6x500FSB 1:1 boot with Transaction Booster Enabled Level 1

Benchmarks used:

Everest Ultimate v4.00.1033 beta
Super Pi v1.50 2M & 8M
Winrar v3.70 Benchmark
PCmark05 Memory Test

System

Intel Core 2 Duo E6700 L629B079 B2
Corsair Nautilus 500 3/8" ID
Asus P5K Deluxe 0311 bios
128MB Gainward FX5200 PCI
2x1GB Crucial PC2-8500 Ballistix dual channel kit in black dimm slots
74GB WD Raptor 8MB on SATA 2 port
Pioneer DVR-08 Burner
Sony FDD
1KW PCP&C SLI psu
WinXP Pro SP2

6x499FSB vs 6x500FSB

To save everyone from scrolling wheel mouse cramps, here's all the results in one bar chart

Settings Used:

Quote:

JumperFree Configuration Settings
AI Overclocking: Manual
CPU Ratio Control: Manual
- Ratio CMOS Setting: 6
FSB Frequency: 499 or 500 or 501
PCI-E Frequency: 100
DRAM Frequency: DDR2-998 or DDR2-1000 or DDR2-1002
DRAM Command Rate: 2T
DRAM Timing Control: Manual
CAS# Latency: 4
RAS# to CAS# Delay: 4
RAS# Precharge: 4
RAS# Activate to Precharge: 5
TWR: 2
TRFC: 25
TWTR: 2
TRRD: 2
TRTP: 5
DRAM Static Read Control: AUTO

Transaction Booster: AUTO or Enabled
Boost Level: N/A or Level 1
Clock Over-Charging Mode: AUTO

CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled

CPU Voltage: 1.325v
CPU Voltage Reference: AUTO
CPU Voltage Damper: Enabled
CPU PLL Voltage: 1.50
DRAM Voltage: 2.15
FSB Termination Voltage: 1.40
North Bridge Voltage: 1.55
North Bridge Voltage Reference: AUTO
South Bridge Voltage: 1.20

Advance CPU Settings
CPU Ratio Control: Manual
- Ratio CMOS Setting: 6
C1E Suppport: Disabled
Max CPUID Value Limit: Disabled
Vanderpool Technology: Disabled
CPU TM Function: Disabled
Execute Disable Bit: Disabled
PECI: Enabled

USB Configuration
USB Functions: Enabled
Legacy USB Support: Disabled (need to enable it to detect USB flash drives)

Knitelife · 06-16-07

The is a definate advantage to staying at 499 vs 500 based on these tests. The TB enabled at the 500mhz helps, but only makes up about half the difference of staying at 499.

Does TB enabled at 499mhz give as much of a bump as it did to the 500mhz numbers?

eva2000 · 06-16-07

Yeah stick with 499FSB and below for now until Asus' new bios comes out allowing you to manually set the strap in bios

499FSB + TB enabled = no system boot (must be too tight heh)

Silviastud · 06-16-07

This is quiet excellent. I'm now hitting the same memory read speeds I was getting at 500FSB and 1200 5-5-5-15 and I've went to 499FSB and 1000 4-4-4-5, with 51.5ns Lat! Freaking sweet guys!

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Asus P5K Deluxe - Strap Changed @500FSB !

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