6x1GB 7-7-7-18 1T

Seems this mismatched combo does pretty well tightening both main and subtimings managing up to DDR3-1718Mhz 7-7-7-18 1T at 1.875v bios. Needed a notch or two higher vdimm when subtimings were tightened otherwise I could of lowered vdimm by ~0.25-0.30v.

System specs

• Intel Core i7 920 3836A756
• Thermalright Ultra 120 Extreme + LGA1366 Bolt Thru kit + 2x 120x38mm Scythe UltraKaze 2000rpm 87cfm fans in push/pull
• DFI LP UT X58-T3EH8 R.A51 - 01/23 beta bios
• 128MB Gainward FX5200 PCI
• Ram cooling: 3x 60x25mm 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

Memory configuration:

• Dimm slot #1: 1GB G.Skill PC3-12800HZ (Samsung HCF0)
• Dimm slot #2: 1GB Corsair DDR3-2133C9DF Dominator (Samsung HCF0)
• Dimm slot #3: 1GB Cellshock PC3-14400 (Micron D9GTR)
• Dimm slot #4: 1GB Corsair DDR3-2133C9DF Dominator (Samsung HCF0)
• Dimm slot #5: 1GB Cellshock PC3-14400 (Micron D9GTR)
• Dimm slot #6: 1GB G.Skill PC3-12800HZ (Samsung HCF0)

Super Pi 32M stable

• DDR3-1606Mhz 7-7-7-18 1T 1.740v bios (1.745v DMM)
• DDR3-1702Mhz 7-7-7-18 1T 1.830v bios (1.835v DMM)
• DDR3-1718Mhz 7-7-7-18 1T 1.875v bios (1.880v DMM)

DDR3-1606Mhz 7-7-7-18 1T 1.740v bios (1.745v DMM)

DDR3-1702Mhz 7-7-7-18 1T 1.830v bios (1.835v DMM)

DDR3-1718Mhz 7-7-7-18 1T 1.875v bios (1.880v DMM)