i7 920 3836A756 @4769Mhz Air Cooled!

Now that I’ve found my max Bclk limit of 228-230Blck, it’s time to revisit max i7 920 AIR overclocks with HT disabled

Powermate wattage meter = ~280-295 watts idle and peaked at ~461 watts for total system power draw from the wall.

Room temp = 21.5C – 23.5C

System specs

• Intel Core i7 920 3836A756
• Thermalright Ultra 120 Extreme + LGA1366 Bolt Thru kit + 2x 120×38mm Scythe UltraKaze 2000rpm 87cfm fans in push/pull
• DFI LP UT X58-T3EH8 R.A51 – 01/06 beta bios
• 128MB Gainward FX5200 PCI
• 2×1GB Corsair DDR3-2133C9DF Dominator + 1GB G.Skill PC3-12800HZ (3x Samsung HCF0)
• Ram cooling: 3x 60×25mm Sunon 23.5cfm Maglev fans
• 80GB Hitachi 7K80 SATAII
• Pioneer DVD-RW
• 1KW Corsair HX1000 psu
• WinXP Pro SP3 full nLite updated hotfixes / Windows 7 beta dual boot

Max screen capture capable @4680Mhz at 1.5875v bios

40416 efficiency

@4638Mhz – more efficient run (2178985)

@4652Mhz – less efficient run (2184839)

Lucky I took this screen capture first, as system rebooted before I could load the other cpuz instances

Bench rig photos

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