6GB Kingston 2000CAS8
KHX2000C8D3T1K3/6GX scaling tests, when I reduced the Uncore frequency multiplier from 24x to 23x - I reduced the Uncore frequency from 4128Mhz to 4071Mhz. I knew I'd get a potentially higher max memory clock at 8-8-8-24 1T timings, but was surprised by how much extra. I managed to jump from DDR3-2064Mhz to DDR3-2124Mhz at the same voltages of 1.45v CPU VTT and 1.66v VDIMM all thanks to
Core i7 980X's lower minimum Uncore to Memory ratio requirements!
6GB Kingston 2000CAS8 KHX2000C8D3T1K3/6GX
@DDR3-2124Mhz 8-8-8-24 1T at 1.66v
- 23x 177bclk = 4071Mhz cpu frequency
- 23x 177bclk = 4071Mhz Uncore frequency (cpuz reports it as NB frequency)
- 18x 177bclk = 3186Mhz QPI frequency
- 12x 177bclk = DDR3-2124Mhz memory frequency
6GB Kingston 2000CAS8 KHX2000C8D3T1K3/6GX
@DDR3-2230Mhz 8-8-8-24 1T at 1.66v
Managing to use TurboV to push bclk incrementally until I reached DDR3-2230Mhz 8-8-8-24 1T at 1.45v CPU VTT and 1.66v VDIMM !
- 23x 186bclk = 4275Mhz cpu frequency
- 23x 186bclk = 4275Mhz Uncore frequency (cpuz reports it as NB frequency)
- 18x 186bclk = 3345Mhz QPI frequency
- 12x 186bclk = DDR3-2230Mhz memory frequency
System:- Intel Core i7 980X 3951A763 B1 Step 2 ES
- EK Supreme LT H20 + TFC480 + MCP655
- Asus P6T6 WS Revolution 0609 beta bios
- Sapphire HD5970 OC Edition 10.4 Official Catalyst Drivers
- 6GB Kingston 2000C8 (KHX2000C8D3T1K3/6GX)
- 750GB Samsung SATAII OS
- 120GB OCZ Vertex SSD (DATA)
- Pioneer DVR216 Burner
- Corsair HX1000
- WinXP Pro SP3 nlite + Windows 7 Ultimate 64bit RTM (fully updated) dual boot OS