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Please Help With My Overclock

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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 Specs:

 

Mobo: DFI LP X48 LT T2R | Bios 08/29 | XSPC Delta Chipset

CPU: Intel Q6600 G0 | Swiftech GTZ

Ram: OCZ PC2-9200 4GB (2 x 2GB) Flex II

GC: Asus 8800GT 512mb | Glacier Fan @ 700/1750/2000

SC: X-Fi Xtreme Gamer Fatal1ty Professional

HD's: WD 150GB Raptor & 4 x 250GB WD SE16 (Raid 0) & Seagate 7200.11 1TB

Optical Drives: 2 x NEC DVD Writers

PSU: SilverPower 600w

Case: NZXT Tempest

Cooling: Custom Water Cooling

OS: Windows XP Professional SP3

 

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!

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The power supply isn't the best and I would definately consider replacing it as it may be the cause of your problems.

 

Regards

 

Paul

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The power supply isn't the best and I would definately consider replacing it as it may be the cause of your problems.

 

Regards

 

Paul

 

Cheers for the reply. My PSU kept my other Q6600 @ 3.3ghz with 1.4v, ram @ 1175mhz with 2.15v stable. And now I am using less voltage on both the cpu and ram. I believe that SilverPower are a subsidiary of Tagan so I would have thought it would be up to the challenge.

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DFI boards like a strong 5V rail, that's all I know from my old DFI Lanparty SLI-DR Expert :(

 

From my experience DFI boards like an all round strong power supply.

 

Regards

 

Paul

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The first thing id do is run prime95 small ffts to see if it is the cpu that is not stable, at least that way you would know if it is the ram, or the cpu, once you know the cpu is stable you can work on the ram.

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The first thing id do is run prime95 small ffts to see if it is the cpu that is not stable, at least that way you would know if it is the ram, or the cpu, once you know the cpu is stable you can work on the ram.

 

Just an addition to that thought to make it perfectly clear - Strap the memory down to where you know it isn't the memory. Get the CPU stable at your target, and then work on the ram. Trying to OC both at once leaves you in the exact position you are in. You have a problem and you don't have a clue why you have the problem. My dear old mom used to tell me that patience is a virtue.

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Just an addition to that thought to make it perfectly clear - Strap the memory down to where you know it isn't the memory. Get the CPU stable at your target, and then work on the ram. Trying to OC both at once leaves you in the exact position you are in. You have a problem and you don't have a clue why you have the problem. My dear old mom used to tell me that patience is a virtue.

 

Cheers for the replies guys. I changed the divider and went back to a 9 x multi. 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.

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