TWIN3X2048-1333C9 @ 1600MHz [P5E3 Deluxe + E8400 @ 3.6GHz]

Hello!

 

I have posted on Compatibility area.. but I think its an onverclocking issue now.

http://www.houseofhelp.com/forums/showthread.php?t=72067

 

 

I intended to run my E8400 @ 4.0GHz

FSB 400MHz

Strap 444MHz

RAM 1600MHz

 

But I decided to take it easy, and go up slowly...

 

I'm currently runing a very modest overclock: 3.6GHz

FSB 400MHz

Strap 400MHz

RAM 1200MHz [?]

 

My question.. how can I set my modules to 1600MHz? It just won't POST if I set to 1600 and 1.7/1.8V

Will I have to relax the timings?

First of all, there is no guarantee that you will make 1333Mhz C9 modules to 1600Mhz. I would personally doubt it.

 

To test, set the FSB Strapping to 266 and the FSB to 450.

 

ie:

and extract the ISO image. Burn the ISO image to an CD-ROM disk.

Enter your BIOS, Load Setup Defaults, Save Setup Defaults and set to these values:

AI Tweaker

 

Configure System Performance Settings

Ai Overclock Tuner = Manual

eXtreme Memory Profile = Disabled

CPU Ratio Setting = 9

FSB Strap to Northbridge = 266

FSB = 400

DRAM Timing Control = Manual

DRAM Frequency = ~DDR3-1600

DRAM Command Rate = 2N

DRAM CLK Skew on Channel A = Auto

DRAM CLK Skew on Channel B = Auto

DRAM Timing Control = Manual

CAS# Latency = 10

RAS# to CAS# Delay = 9

RAS# PRE Time = 9

RAS# ACT Time = 24

All Else to Auto

DRAM Static Read Control = Disabled

DRAM Dynamic Write Control = Disabled

Transaction Booster = Disabled

 

CPU Voltage = ~1.30v

CPU PLL Voltage = Auto

FSB Termination Voltage = Auto

DRAM Voltage = 1.9v

NB Voltage = 1.4v

SB Voltage = Auto

Clock Over-Charging Voltage = Auto

Load Line Calibration = Enabled

CPU GTL Voltage Reference = 67%

NB GTL Voltage Reference: 63%

CPU Spread Spectrum = Disabled

PCIE Spread Spectrum = Disabled

Run Memtest for two full passes, then (If Stable), enter Windows and post screenshots of CPU-z's CPU, Memory and SPD tabs.

 

I doubt it though.

Hey Derek,

 

I tried your settings but it just won't POST with DRAM @ 1600.

Its too much for these 1333 Cas9 modules.

 

What I'm currently running is:

 

Ai Overclock Tuner = Manual

eXtreme Memory Profile = Disabled

CPU Ratio Setting = 9

FSB Strap to Northbridge = 266

FSB = 425

DRAM Timing Control = Manual

DRAM Frequency = DDR3 1360

DRAM Command Rate = 1N

DRAM CLK Skew on Channel A = Auto

DRAM CLK Skew on Channel B = Auto

DRAM Timing Control = Manual

CAS# Latency = 10

RAS# to CAS# Delay = 9

RAS# PRE Time = 9

RAS# ACT Time = 24

All Else to Auto

DRAM Static Read Control = Disabled

DRAM Dynamic Write Control = Disabled

Transaction Booster = Enabled

Level 1

 

All else auto.

 

EDIT:

Not stable... fails Prime95.

 

I found that at 3.6GHz the Vcore voltage is very low, like 1.248V ~1.256V. At 3.8GHz it starts to get a little high, 1.288 ~ 1.292.

 

At 3.9GHz it will require 1.32V, but I was not able to make it stable. Fails Prime95.

 

What does these settings adjust:

CPU GTL Voltage Reference = 67%

NB GTL Voltage Reference: 63%

 

I have not found any big gains with AI Booster Enabled or Disabled, only the "Performance Level" changes from 9, to 10 [MemSet]

 

I see some E8400 running 4.01GHz with 1.29~ Volts... do you know the average value for these processor to run stable at 4.GHz? I know it varies from piece to piece... I'm just not very confortable when I see it taking 1.32V to run 3.9GHz and not getting stable.

Hey Derek,

 

I tried your settings but it just won't POST with DRAM @ 1600.

Its too much for these 1333 Cas9 modules.

 

What I'm currently running is:

 

Ai Overclock Tuner = Manual

eXtreme Memory Profile = Disabled

CPU Ratio Setting = 9

FSB Strap to Northbridge = 266

FSB = 425

DRAM Timing Control = Manual

DRAM Frequency = DDR3 1360

DRAM Command Rate = 1N

DRAM CLK Skew on Channel A = Auto

DRAM CLK Skew on Channel B = Auto

DRAM Timing Control = Manual

CAS# Latency = 10

RAS# to CAS# Delay = 9

RAS# PRE Time = 9

RAS# ACT Time = 24

All Else to Auto

DRAM Static Read Control = Disabled

DRAM Dynamic Write Control = Disabled

Transaction Booster = Enabled

Level 1

 

All else auto.

 

EDIT:

Not stable... fails Prime95.

 

I found that at 3.6GHz the Vcore voltage is very low, like 1.248V ~1.256V. At 3.8GHz it starts to get a little high, 1.288 ~ 1.292.

 

At 3.9GHz it will require 1.32V, but I was not able to make it stable. Fails Prime95.

 

What does these settings adjust:

CPU GTL Voltage Reference = 67%

NB GTL Voltage Reference: 63%

 

I have not found any big gains with AI Booster Enabled or Disabled, only the "Performance Level" changes from 9, to 10 [MemSet]

 

I see some E8400 running 4.01GHz with 1.29~ Volts... do you know the average value for these processor to run stable at 4.GHz? I know it varies from piece to piece... I'm just not very confortable when I see it taking 1.32V to run 3.9GHz and not getting stable.

 

Set your Command Rate to 2T. I have found 1.34v - 1.36v (Windows) for 4Ghz. I can run with 1.3v but not stable and keep in mind that many do not really run stable. What you find with regards to voltage is correct. The necessary voltage scales highly after 3.8Ghz on 45nm products.

 

+.1v is not anything to worry about. Max is stated at 1.25 and .1 = 1.35. I have no problems with up to 1.4v personally, though I have never needed that much for any 45nm to make 4.0Ghz. Even my QX9650 needs less than 1.37 (Windows) for 4.0Ghz.

 

Not AI Booster enabled, but DRAM Static Read Control enabled.

 

GTL (Gunning Transceiver Logic) is a logic circuit that works with chip to chip interfaces and allows for an assist in the termination voltages which are of the VTT (Voltage Threshold Termination). Think of an open drain pipe with voltage being the medium in the drain conduit. This output of voltage is connected to the VTT circuit via the termination resistor which gauges the value of the voltage. Once the value is known, then it can be gauged whether to enable termination when too high. So, in other words, when the value of the drain output is in a low state there is a pathway to the grounding for VTT to be enabled and conversely, when the value of the drain output is in a high state, the outputs slows the conduction of the current.

 

These methods allow to keep the voltage signal clean. When you overclock, you increase voltages and speeds, and this effects the circuitry and thus the signals because the impedance is altered. When the impedance is altered, so is the noise of the circuit.

 

For an understanding of this it is helpful to move to comparisons. All electrical signals in a computer are transferred via harmonics. The rise and the fall of the sine wave is the mode. Have you heard of harmonic distortion in audio clarity? If not, Google this term and apply the effects to the electromagnetic resonance in the transfer of electronic signals.

 

GTL and VTT are methods to tighten up the overclocked signal so that there is less chance of spike transference from one line of data to another line of data, which leads to data corruption.

 

Research:

 

http://en.wikipedia.org/wiki/Gunning_Transceiver_Logic

Hello!

 

What does the Comand Rate do?

I've read on that Anandtech P5E3 overclocking review, but for real I can't see any diff on my system.

 

I've found a very good setting:

FSB Strap 200MHz

FSB 430MHz

DRAM 1433 (9-9-9-24)

Transaction Booster Enabled

Level 2

 

Vcore Auto

DRAM 1.74

 

 

And the results are:

http://www.houseofhelp.com/forums/attachment.php?attachmentid=4085&stc=1&d=1220358494

http://www.houseofhelp.com/forums/attachment.php?attachmentid=4086&stc=1&d=1220358505

 

I ran MemTest

no errors were found

Prime95 fails from start... but my system is very stable, no blue screens, I can play without any errors...

 

 

Thanks for the explanation about GTL, I'm an engineering studend (automotive, but I love eletronics).

Althought, I couldn't find an optimal value... depending on the percentage set, it wouldn't even bot up.

I didn't get how to calculate the best value for the current settings...

What does the Comand Rate do?

 

Please read this thread.

 

http://www.houseofhelp.com/v3/showthread.php?p=364699#post364699

Prime95 fails from start... but my system is very stable, no blue screens, I can play without any errors...

 

Please post your BIOS settings here:

AI Tweaker

 

Configure System Performance Settings

Ai Overclock Tuner = Manual

eXtreme Memory Profile = Disabled

CPU Ratio Setting =

FSB Strap to Northbridge =

FSB =

DRAM Timing Control = Manual

DRAM Frequency =

DRAM Command Rate =

DRAM CLK Skew on Channel A =

DRAM CLK Skew on Channel B =

DRAM Timing Control =

CAS# Latency =

RAS# to CAS# Delay =

RAS# PRE Time =

RAS# ACT Time =

All Else to Auto

DRAM Static Read Control =

DRAM Dynamic Write Control =

Transaction Booster =

 

CPU Voltage =

CPU PLL Voltage =

FSB Termination Voltage =

DRAM Voltage =

NB Voltage =

SB Voltage = Auto

Clock Over-Charging Voltage =

Load Line Calibration =

CPU GTL Voltage Reference =

NB GTL Voltage Reference:

CPU Spread Spectrum =

PCIE Spread Spectrum =

I have run some diff settings... at the moment Im settled with this one:

 

http://www.houseofhelp.com/forums/attachment.php?attachmentid=4140&stc=1&d=1221071275

http://www.houseofhelp.com/forums/attachment.php?attachmentid=4141&stc=1&d=1221071413

http://www.houseofhelp.com/forums/attachment.php?attachmentid=4142&stc=1&d=1221071458

 

Tonight I'll post other combinations of FSB x Multiplier x DRAM values that I have tried.

Ill post the setting I used for each one.

 

This one is the best for me till now, 4GHz, 1500MHz on RAM, latency of 54.2... stable and cool!