C2Q 9450 & MSI P7N Platinum

[2cold]

Greetings... I am having a bit of a problem trying to keep a stable overclock on the Core 2 Quad 9450 @3.0GHz with a MSI P7N SLI Platinum motherboard. If someone can direct me in the right direction as to how I may achieve this, it would be most appreciated.


Specs:

MSI P7N SLI Platinum Motherboard
XIGMATEC AIO-S80DP CPU Liquid Cooler
Core 2 Quad 9450 @2.66GHz
OCZ Gold Edition Dual Channel 8GB DDR2 800MHz (5-5-5-15)


Settings:

CPU - (@0.0125v) default
FSB - (@1500MHz)
Memory Clock - (@750MHz) 1:1 Ratio
Memory Timings - (5-5-5-15 @1.8v) Manufacture is 1.8v, BIOS shows 1.9v as default
VTT - (@1.225v)
NB - (@1.28v)
SB - (@1.50v) default


Other Thoughts:

The system has a stable overclock for a day or two, and then freezes out of no where. While I would like to achieve even higher clock speeds, nothing will boot past a 1500MHz FSB and I cant seem to get a stable overclock @3.0GHz. What would be the best approach in this situation?

 

[tinytomlogan]

Pretty certain youve got that wrong mate - its not 1500fsb - 500fsb would be a big deal tbh.

back in the day 500fsb with an 8 multiplier gave us the golden 4ghz overclock we all wanted

1500x2 just isnt how it is sadly.

 

[2cold]

1500 is the FSB Frequency.

 

[Wraith]

After a little googleing it would seem that the P7N wasn't as great a performer as originally thought, some couldn't get it past 400FSB on the CPU OC side.. this is due in part to the motherboards CPU bridge to chipset only supporting 1333Mhz FSB.

More info >>Here<<

 

[2cold]

Yes, that is true. Though I have also spent days going through many forums and read about others who have successfully oc'd the 9450 on this board. It oc's just fine at 3.0GHz, though attempting anything past that and it will not boot. The issue is I can't seem to find the correct voltages to keep it stable @3.0GHz.

 

[agent_x007]

Maybe U got really bad luck on silicon lottery end ?
U tried going for 1,3-1,35V on Vcore (along with 1,3V+ on FSB ) ?
Getting NB more volts can help too.

I guess U got 800MHz set in BIOS (with that 400MHz/1600MHz [real] FSB ).
I also heard changing Memory contoler mode (for asymetric/unlinked or smth. [?]), can get it more stable.
But I can't remember where I read this...
Can U write exact model number(s) for your RAM (and what configuration is it in, ie. 2x2GB or 4x1GB, 4x2GB, etc.).

Use memtest86+ booted from USB stick to see if RAM/Memory Controler are at fault (lower multiplier on CPU before testing).

@Wraithguard
P965 from my P5B (in theory) "can't do" 1600MHz FSB (even 1333MHz has "beta" support only), but it didn't stopped it from reaching... 2133MHz : LINK
And I know - I cheated since I used Dual-Core (in OP is Quad).
Still no Water/LC/DI/Cascade cooling required
On Xeon E5440 (renamed Q9550) I got ~475MHz : LINK
Not 100% stable (probably due to "naked" 3-Phase VRM section), but stable enough for most benches B) (like FS : LINK)