eVGA 790i and Q9450 -- Need Some Assistance

[dinos22]

first of all you have to run RAM in black slots

in terms of volts please leave all on Auto except for Vcore and vdimm. I assume you are trying to do 450*9 = 4050

so set your vcore to whatever your CPU is stable at those speeds (probably around 1.35v for most quads) >> you can always bump up or down depending on how good your CPU and coolin is

i also suggest slowly starting from 400*9 in bios and them moving in 10MHz increments to 450 to see where you get stuck

Also, are you sure your CPU can manage 450MHz FSB????


[EDIT]

CPU Multiplier 8x (ah ok 3.6GHz is the goal fair enough)
PCIe _1 and _2 MHz Auto
PCIe _3 MHz Auto
SPP <-> MCP Ref Clock Auto
nForce SPP -> nForce MCP 4x
nForce SPP <- nForce MCP 4x

CPU Spread Spectrum Center
HT Spread Spectrum Auto
PCIe Spread Spectrum (SPP) Disabled
PCIe Spread Spectrum (MCP) Auto
SATA Spread Spectrum Down
^^^^^ DISABLE ALL^^^^


FSP Memory Clock Mode Auto(1600)
Also unlink memory and run it at 1600
Memory Timings Optimal
tCL Auto(7 > also try 8)
tRCD Auto(7)
tRP Auto(7)
tRAS Auto(20)
CMD Auto(1T also try 2T)

tRRD Auto(LEAVE AUTO)
tRC Auto(LEAVE AUTO)
tWR Auto(LEAVE AUTO)
tWTR Auto(LEAVE AUTO)
tFAW Auto(LEAVE AUTO)

Limit CPUID MaxVal Disabled
Intel Speedstep Disabled
CPU Thermal Control Disabled
C1E Enhanced Halt State Enabled
Execute Disabled Bit Enabled
Virtualization Technology Enabled
i usually disable all for initial testing
and then enable 2nd, 3rd and 4th for 24/7 system

CPU Core Auto(1.17V ok if your CPU is stable at that >>> for FSB OCs i had to increase CPU voltage to reach ultrahigh dual core FSB....for quad cores 450 is pretty high)
CPU FSB Auto(AUTO)
Memory Auto(1.9V-2v <<< this undervolts on my board by 0.05v so keep that in mind)
nForce SPP Auto(AUTO)
nForce MCP Auto(AUTO)

GTLUREF Lanes 0-3 Auto
LEAVE GTL REF AT AUTO FIRST
and then later play with values on all four lanes slowly increase to positives first....one user found stability around 30 or 35 but it doesn't mean your setup will be the same

[Natalia]

Could just be the EPP. Sometimes, the higher speed could be listed first, and that's what it's using. Since it's 1600, Auto won't cut it. By default, it uses the 1333 strap, which would make it 1:1 with memory and CPU. So, you'll have to unlock it and leave your CPU speed at stock (if you want, which you shouldn't cause this is XS). After that, just clock the memory to 1600 which is the stock speed, and you should be good to go!

In my BIOS it says that EPP is not detected.

So I should switch over to unlinked, set the memory at 1600, then do I leave the timings on auto? Or do I set those to what was listed? Auto sends them to 9.

As far as the CPU, I'd like to hit 3.8GHz Not easy given the 8x limitation.

first of all you have to run RAM in black slots

Ah, thought I was supposed to use RAM slots 0 (the one closest to the CPU) and 1 (the one two slots over with the same color).

in terms of volts please leave all on Auto except for Vcore and vdimm. I assume you are trying to do 450*9 = 4050

The Q9450 has a limit of a 8x multiplier

so set your vcore to whatever your CPU is stable at those speeds (probably around 1.35v for most quads) >> you can always bump up or down depending on how good your CPU and coolin is

i also suggest slowly starting from 400*9 in bios and them moving in 10MHz increments to 450 to see where you get stuck

Also, are you sure your CPU can manage 450MHz FSB????

So leave all the Voltages at Auto, and play with the CPU Core voltage till it is stable?



EDIT:

Also forgot to point out that the CPU is on water