Please Help With My Overclock

[!TIMMY!]

I am trying to get my PC stable with my Q6600 @ 3.6 (450 x 8), and ram @ 1128mhz 5-5-5-15-2T.

I bought this cpu 2nd hand because it can do 3.6ghz (450 x 8) @ 1.3375 vcore, 100.23% special add, vdroop: disabled; in a DFI X48 UT. I have had my ram at 1175mhz @ 5-5-5-15-2T before, but I have having problems getting them stable together.

With the current settings below, it will last 1 minute on OCCT before the PC locks up. The max temperature any CPU core reached was 63C. My chipset temps are fine. The AS5 still need time to cure and my water cooling loop still needs to settle, so I think temps will reduce over time.

My spec is in my sig.

Bios Settings:

CPU Feature

- Thermal Management Control: Disabled

- PPM(EIST) Mode: Disabled

- Limit CPUID MaxVal: Disabled

- CIE Function: Disabled

- Execute Disable Bit: Disabled

- Virtualization Technology: Disabled

- Core Multi-Processing: Enabled

Exist Setup Shutdown: Mode 2

Shutdown after AC Loss: Disabled

CLOCK VC0 divider: AUTO

CPU Clock Ratio Unlock

CPU Clock Ratio: 8x

- Target CPU Clock: 3600

CPU Clock: 450

Boot Up Clock: AUTO

DRAM Speed: 266/667

- Target DRAM Speed: 1128

PCIE Clock: 100mhz

PCIE Slot Config: 1X 1X

CPU Spread Spectrum: Disabled

PCIE Spread Spectrum: Disabled

SATA Spread Spectrum: Disabled

Voltage Settings

CPU VID Control: 1.3375v

CPU VID Special Add Limit: Enabled

CPU VID Special Add: 100.23%

DRAM Voltage Control: 2.12v

SB Core/CPU PLL Voltage: 1.510v

NB Core Voltage: 1.555v

CPU VTT Voltage: 1.310v

Vcore Droop Control: Disabled

Clockgen Voltage Control: 3.45v

GTL+ Buffers Strength: Strong

Host Slew Rate: Weak

GTL REF Voltage Control: Disable

x CPU GTL1/3 REF Volt: 113 (Greyed Out)

x CPU GTL 0/2 REF Volt: 100 (Greyed Out)

x North Bridge GTL REF Volt: 100 (Greyed Out)

DRAM Timing

- Enhance Data transmitting: FAST

- Enhance Addressing: FAST

- T2 Dispatch: Auto

Clock Setting Fine Delay

DRAM CLK Driving Strength: Level 6

DRAM Data Driving Strength: Level 8

Ch1 DLL Default Skew Model: Model 0

Ch2 DLL Default Skew Model: Model 0

Fine Delay Step Degree: 5ps

Ch1 Clock Crossing Setting: Auto 

- DIMM 1 Clock fine delay: Current

- DIMM 2 Clock fine delay: Current

- DIMM 1 Control fine delay: Current

- DIMM 2 Control fine delay: Current

- Ch 1 Command fine delay: Current

Ch2 Clock Crossing Setting: Auto

- DIMM 3 Clock fine delay: Current

- DIMM 4 Clock fine delay: Current

- DIMM 3 Control fine delay: Current

- DIMM 4 Control fine delay: Current

- Ch 2 Command fine delay: Current

Ch1Ch2 CommonClock Setting: Auto

Ch1 RDCAS GNT-Chip Delay: Auto

Ch1 WRCAS GNT-Chip Delay: Auto

Ch1 Command to CS Delay: Auto

Ch2 RDCAS GNT-Chip Delay: Auto

Ch2 WRCAS GNT-Chip Delay: Auto

Ch2 Command to CS Delay: Auto

CAS Latency Time (tCL): 5

RAS# to CAS# Delay (tRCD): 5

RAS# Precharge (tRP): 5

Precharge Delay (tRAS): 15

All Precharge to Act: 6

REF to ACT Delay (tRFC): 52

Performance LVL (Read Delay) (tRD): 7

Read delay phase adjust: Enter

Ch1 Read delay phase (4~0)

- Channel 1 Phase 0 Pull-In: AUTO (7)

- Channel 1 Phase 1 Pull-In: AUTO (7)

- Channel 1 Phase 2 Pull-In: AUTO (7)

- Channel 1 Phase 3 Pull-In: AUTO (7)

- Channel 1 Phase 4 Pull-In: AUTO (7)

Ch2 Read delay phase (4~0)

- Channel 2 Phase 0 Pull-In: Auto (7)

- Channel 2 Phase 1 Pull-In: Auto (7)

- Channel 2 Phase 2 Pull-In: Auto (7)

- Channel 2 Phase 3 Pull-In: Auto (7)

- Channel 2 Phase 4 Pull-In: Auto (7)

MCH ODT Latency: 1

Write to PRE Delay (tWR): AUTO

Rank Write to Read (tWTR): AUTO

ACT to ACT Delay (tRRD): AUTO

Read to Write Delay (tRDWR): AUTO

Ranks Write to Write (tWRWR): AUTO

Ranks Read to Read (tRDRD): AUTO

Ranks Write to Read (tWRRD): AUTO

Read CAS# Precharge (tRTP): AUTO

ALL PRE to Refresh: AUTO

These settings:

DRAM CLK Driving Strength: Level 6

DRAM Data Driving Strength: Level 8

Ch1 DLL Default Skew Model: Model 0

Ch2 DLL Default Skew Model: Model 0

Fine Delay Step Degree: 5ps

popped up when I updated the bios to 08/29 and I have no idea what to set them at (I never changed them) and how they effect the overclock.

Please can you help, I would love to get my PC stable at these speeds!

 

[Ham]

Hmm, first thing that jumps out at me there is running DDR2 4GB kits at them speeds isn't an easy feat. tried down clocking that to between 900 & 1000

I can't see an obvious option for it but any idea what you NB strap is?

Have you tried adjusting the GTL's?

What's the chipset temps like?

 

[!TIMMY!]

Hmm, first thing that jumps out at me there is running DDR2 4GB kits at them speeds isn't an easy feat. tried down clocking that to between 900 & 1000

I can't see an obvious option for it but any idea what you NB strap is?

Have you tried adjusting the GTL's?

What's the chipset temps like?

I have had the ram running @ 1175 (rated for 1150), so I'm already under clocking it.

The strap is 266:667

Nope not tried messing with GTL's after last time I almost never got back into Windows lol. Might have a look into how to do it again.

The chipset temps are fine I think. Can't remember the exact temp but it was in the 40's.

 

[°TheMadDutchDude°]

You're not underclocking it bud, re-phrase that

Right, why do you want such a high FSB? Why not tone it down to 400x9 instead of 450x8? That will help you I reckon, most likely only have to do around 1 notch, or two notches up on the vcore at the most, if any at all.

 

[!TIMMY!]

You're not underclocking it bud, re-phrase that

Right, why do you want such a high FSB? Why not tone it down to 400x9 instead of 450x8? That will help you I reckon, most likely only have to do around 1 notch, or two notches up on the vcore at the most, if any at all.

Ok, I'm running it below the rated speed.

I wanted 450fsb because it would give me a higher ram speed (1128 as apposed to 1066); but I will try 400 x 9 if I cannot get 450 x 8 stable after messing with the GTL's.

 

[Bungral]

Ham is right in saying that getting that RAM stable even at stock is difficult. Especially on an X38 or X48 mobo.. Meant to be much easier on the P35 and P45. I can't even get mine to run stock with a large CPU overclock. I can get them above 1150MHz if I was willing to sacrifice CPU speed down to about 3.2GHz, but I'm not so I just run the RAM a little slower.

 

[°TheMadDutchDude°]

I have had the ram running @ 1175 (rated for 1150), so I'm already under clocking it.

That is why I asked you to re-phrase it, that is overclocked.. not underclocked

 

[nepas]

try upping your cpu vtt voltage a bit

EDIT:after looking at your voltages,the cpu vtt voltage is about right,I did notice that the gtl voltages are different to mine on stock(does it make much difference between the x38 and x48?)mine are all at 110

 

[!TIMMY!]

try upping your cpu vtt voltage a bit

EDIT:after looking at your voltages,the cpu vtt voltage is about right,I did notice that the gtl voltages are different to mine on stock(does it make much difference between the x38 and x48?)mine are all at 110

I tried setting the GTL to what was recommend on Clunks Review, but it wasn't stable. I have been trying @ 400 x 9 and my cpu actually gets too hot! So going to order 2 more fans.

 

[nepas]

thought you were on water?what sort of temps are you hitting??mmm so the settings from clunks didnt work,i was going to try them myself to see if I can hit 4ghz

 

[!TIMMY!]

I am lol. The CPU was lapped, I'm guessing it wasn't the best job. I have it OCCT stable at 3.6ghz (400 x 9) with 1.35 vcore with special add on auto (about 1.38v according to OCCT), 1.405v NB and 2.10v RAM @ 1066 5-5-5-15 2T. I will try Prime as well to make sure it is stable. Maybe 450 x 8 just aint possible with my setup.