Asus Rampage III Extreme - results thread

[shadewither]

I have the same problem as basco:
proven 225+ bclk capable 920(+all other rigs) cannot work properly on 220+ bclk @ R3E 0602.
218 bclk seems fine; 219 bclk needs >100 PCIE; 220+ bclk simply does not work.

CPU basically works at 220+ and does not suddenly become unstable, and CPU performance(e.g. flops) seems normal.
But it seems that GPU<->CPU bandwidth is corrputed:
lagging graphics even in BIOS;
observed graphics glitches in Windows(2D, not dare to try 3D);
GPU<->Host bandwith test fails(succeed at 219 or lower).
My creative X-Fi PCI soundcard does not seem to work properly at 220+ either.

(clock/voltage below are not accurate)
These settings are >10 hours LinX stable for bclk 219.

Target CPU Frequency        4620MHz
Target DRAM Frequency        1763MHz

LN2 Mode:            Disabled***
QPI Loadline Calibration:    Enabled***

Sync Mode            [Disabled]
AI Overclock Tuner        [Manual]
OC From CPU level Up        [Auto]
CPU Ratio Setting        [21.0]
CPU Turbo Power Limit        [Disabled]

>CPU Configuration----------------------------
CPU Ratio Setting        [21.0]
C1E Support            [Disabled]
Hardware Prefetcher        [Enabled]
Adjacent Cache Line Prefetcher    [Enabled]
Intel(R) Virtualiyation Tech    [Enabled]
CPU TM Function            [Disabled]
Execute Disable Bit        [Enabled]
Intel(R) HT Technology        [Enabled]
Active Processor Cores        [All]
A20M                [Disabled]
Intel(R) SpeedStep(TM) Tech    [Disabled]
Intel(R) C-STATE Tech        [Disabled]
C State package limit setting    [Auto]
----------------------------------------------

BCLK Frequency            [220]
PCIE Frequency            [100]
DRAM Frequency            [1763]
UCLK Frequency            [3529]
QPI Link Data Rate        [7920]

Memory Configuration Protect    [Disabled]

>DRAM Timing Control--------------------------
CAS# Latency              7    [7]
RAS# to CAS# Delay          7    [7]
RAS# PRE Time              7    [7]
RAS# ACT Time             21    [21]
RAS# to RAS# Delay          4    [4]
REF Cycle Time             72    [72]
WRITE Recovery Time         ?    [Auto]
READ to PRE Time          ?    [Auto]
FOUR ACT WIN Time         ?    [Auto]
Back-To-BackCAS# Delay          0    [Auto]

Timing Mode             1N    [1N]
Round Trip Latency on CHA    ?    [Auto]
Round Trip Latency on CHB    ?    [Auto]
Round Trip Latency on CHC    ?    [Auto]

WRITE To READ Delay(DD)          ?    [Auto]
WRITE To READ Delay(DR)          ?    [Auto]
WRITE To READ Delay(SR)          ?    [Auto]
READ To WRITE Delay(DD)          ?    [Auto]
READ To WRITE Delay(DR)          ?    [Auto]
READ To WRITE Delay(SR)          ?    [Auto]
READ To READ Delay(DD)          ?    [Auto]
READ To READ Delay(DR)          ?    [Auto]
READ To READ Delay(SR)          ?    [Auto]
WRITE To WRITE Delay(DD)      ?    [Auto]
WRITE To WRITE Delay(DR)      ?    [Auto]
WRITE To WRITE Delay(SR)      ?    [Auto]
----------------------------------------------

CPU Differential Amplitude    [Auto]
CPU Clock Skew            [Auto]
IOH Clock Skew            [Auto]
------------ Extreme Engine Digi+ ------------
Digi+ PWR Mode            [T-Balanced]
PWR Volt. Control        [Auto]
Load-Line Calibration        [Full]
CPU Voltege OCP            [Enabled]
CPU PWM Frequency        [1000kHz]

Extreme OV            [Disabled]
Extreme OC            [Auto]

CPU Voltage        --    [1.36250]
CPU PLL Voltage     --    [1.50125]
QPI/DRAM Core Voltage    --    [1.42500]
DRAM Bus Voltage    --    [1.70925]

>DRAM REF Voltages----------------------------
DRAM DATA REF Voltage on CHA    [Normal]
DRAM CTRL REF Voltage on CHA    [Normal]
DRAM DATA REF Voltage on CHB    [Normal]
DRAM CTRL REF Voltage on CHB    [Normal]
DRAM DATA REF Voltage on CHC    [Normal]
DRAM CTRL REF Voltage on CHC    [Normal]
----------------------------------------------

IOH Voltage        1.16    [1.16641]
IOH PCIE Voltage    1.508    [1.51105]

ICH Voltage        1.111    [1.11341]
ICH PCIE Voltage    1.508    [1.51105]

---------- Spread Spectrum Control -----------
CPU Spread Spectrum        [Disabled]
DRAM Spread Spectrum        [Disabled]



***on-board jumper dependant

None of these worked:
IOH/IOH PCI/ICH/ICH PCIE voltage + 5 notches
vpll > 1.8
vcore/vtt + 0.1v
CPU Clock Skew 0-400
IOH Clock Skew 0-400
NX Bit disable/VT disable

[donmarkoni]

Why don't you try first with lower CPU multi, just to be sure.
And try with higher IOH voltage, as you say you have CPU <-> GPU lag and corruption.
Here are mine settings for 220 and 240 BCLK for some reference.

[famich]

A fine result here with the newest BIOS /thanks, Don, for your recommendation /

[donmarkoni]

By famich

A fine result here with the newest BIOS /thanks, Don, for your recommendation /

Keep goin', keep goin'... I just might try your 4.4 GHz settings when you get there. I'm suspecting my CPU just won't do 4.4GHz 24/7 stable (folding), not even on this board. It can do 240 BCLK, it also can do 4000 UnCore 24/7 no sweat, but 4.4 Core... no go.

[famich]

Would be an exception, even 32nm new CPUS /Westmere / are having some probs reaching that , AFAIK.

I am being taken down by my memory. I got Patriot 6GB 1600 8 8 8 24 that run 10 10 10 28 at this speed . Then I got second hand Corsair XMS that got specs 7 7 7 20 @1,9V at 1600 /Elpida chips , MP / I guess I ll have to try this kit ...

[donmarkoni]

By famich

Would be an exception, even 32nm new CPUS /Westmere / are having some probs reaching that , AFAIK.

I am being taken down by my memory. I got Patriot 6GB 1600 8 8 8 24 that run 10 10 10 28 at this speed . Then I got second hand Corsair XMS that got specs 7 7 7 20 @1,9V at 1600 /Elpida chips , MP / I guess I ll have to try this kit ...

I have tried before some "old" DDR3 kits that require 1.9V (link).
Maybe you too won't be needing such high voltage like I didn't need it.
Just to remind you: vDIMM must not exceed 0.5V from VTT, so you don't forget when playing with high voltage memory.

[famich]

Thanks, interesting reading while working - that rule I do know, thanks anyway!!! will report back...

just a quick remark: managed to ge to 219 BCLK, 220 will require some fine adjusting of the mem timings, running the Corsair XMS at 8 8 8 28 at 1,71 VDIMM at 219 BCLK.

[famich]

Tried a little bit more: