Q6600 OC w/ non-stock Voltages

[rrjwilson]

I currently have a pretty swift system but its all stock voltages. I will watercool it when I have the time but I don't so I want to go just that little further. Currently, i'm at 3.0GHz but I would like to go further. Its rock solid even a sponsored 24 hour Gaming Marathon didn't make it get that hot. I have SLi with some 8800GTXs but the problem is my quad-core processor is now the limiting factor. I'd like some more pep to get the FPS up that little bit more (and my scores ) whether that be absolute speed (ok fsb x 9) or more bandwidth (high fsb x low multi). I assume that i need to change the voltage because I've whiled away many an hour working with stock voltages.

Here is my setup as of now, please be aware i have also had problems getting 1066MHz with my RAM at the stated 2.2V required by OCZ.

Hardware:

Windows XP Pro x64

Asus Striker Extreme 680i

Intel Core 2 Quad Q6600 3.0GHz (1333MHz - 333 x 9) G0 stepping

2Gb OCZ ReaperHPC PC2-8500 (930Mhz - 465MHz 5-5-5-15-2T)

2x 160Gb SATA2 Maxtor DiamondMax +10 (System Disk and Documents)

2x 320Gb SATA2 Maxtor DiamondMax +11 (Audio and Video)

2x Asus Extreme 8800GTX (600Mhz, 1000Mhz, 1406MHz) in SLi

Thermaltake 1200W PSU

Asus MW221u Monitor

Artic Cooling Freezer Pro 7

Coolermaster 4-in-3 Hard disk cooler

Drivers:

1503 BIOS

9.53 680i SLi Intel Edition

163.75 8800GTX driver

DirectX 9.0c

All Voltages: [Auto]

Results:

CSS VST @ 1680x1050 16x AA 16x AF - 318.11fps

3DMark06 @ defaults - 16069 - 6138 - 7513 - 4778

 

[Toxcity]

Well there isn't really much to say.

On air with a quad do not go over around 1.5v and on water the max is 1.55v.

Reason being.. the chip will degrade over time if run at more than 1.55.

 

[rrjwilson]

Thats a good start thanks Here is my CPU-Z and GPU-Z readouts hope they can help diagnose something. The SPD pages always make me laugh as the change everytime I startup. Stranger still is the Memory timings as in BIOS they are 5-5-5-15-2T

 

[usman.zx10]

Well there isn't really much to say.

On air with a quad do not go over around 1.5v and on water the max is 1.55v.

Reason being.. the chip will degrade over time if run at more than 1.55.

that is correct sir.

i built a system for buddy and i was able to OC it to 3.6 on watercooled at 1.55v any more than that it wasnt taking it to well.

i know it can be done up to 4ghz but there is something that was done that i am missing.. not gonna chance it.

 

[Phoenix]

I actually don't think the 680-chipset will allow much more juice out of a Q6600. But anyway, you could have a go at 375x9, setting it at 3,375GHz. Works great on my 780-chipset, at a vCore of 1,34250v and everything else on auto, and memoryspeeds at stock (1066)