VR-Zone.com — Overclocking Vitamins: EVGA 680i SLI & QX6850

Filed Under: Archives, Overclocking, Reviews
Posted By: VRArchiver
Date Posted: Sun July 15 2007 3:41 pm

Overclocking Vitamins

It was a peaceful Sunday afternoon, I was just chilling out and having a couple of vitamins:

After having some vitamins, I felt strong, so I put my Intel QX6850 Extreme Edition on the EVGA nForce 680i SLI Motherboard, and cooled it with refrigeration Cascade.

First I tested FSB with the Kentsfield Quad Core Processor.

The vitamins was superb, my Kentsfield now scaled up to a shocking 500MHz FSB!!

To stabilize things, and not to have an overdose of vitamins, I reclined to 475MHz FSB:

Well I want to do high MHz next I thought, and still have a spanking 400+MHz FSB. So drop a bit of FSB and up the multiplier:

Sweet deal, just 1.55v to give me a stable 4867MHz Quad Core stable, with the Cascade, riding a nice 442MHz FSB.

Liquid Nitrogen Prescription

Ok I have teeny bit of Liquid Nitrogen, so why waste it? LN2 poured over:

5GHz Quad Core Stable!! The only bottleneck at this stage was not the vitamins, nor the motherboard, nor the CPU, but the thermal paste I used. It's just too solidified to give low thermal resistance at temperatures below -100C. So time to go shopping for the more branded goop!

25.7K 3D Mark 06

After switching to Akasa silver based thermal paste, the temperature was much more stable. So it was time to do SLI runs!

The setup is as follows:

Intel QX6850 at 11 x 462FSB > 5082MHz cooled by LN2

EVGA 680i SLI Motherboard

2 x ASUS EN8800 Ultras @ 918/1224MHz cooled by Dry Ice

GSkill 2 x 1GB HZ DDR2 Memory

Silverstone Olympia 1000w Power Supply

Nice Afternoon's worth of benchmarking. Will probably try some LN2 on GPUs to further the score.

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