Intel XEON X5650 B1 Retail x2 3012A692
EVGA Classified SR-2 BIOS A50
Crucial Ballistix PC3-1333 CL6 D9GTR 2G Kit (Active)
Crucial Ballistix PC3-2000 CL9 D9GTS 2G Kit (Active)
Thermaltake V1R (in use, without heatpipe)
Cooler Master Silent Pro M 1000W PSU
Galaxy GTX 275 (Digital PWM)
WD 10EALX
Overclock:
Currently running @ Default.
Intel i7-2600K (L041C107, L048B284, L050A853)
Asus P8P67 Pro BIOS 1305
WC setup EK Supreme HF GOLD Edition powered by BlackICE GTX 480
G.Skill 12800CL7D-4GBECO x2 packs
WD 10EALX
Intel X25-M 120GB
MSI NGTX560Ti Twin Frozer SLI
Overclock:
40x100 4Ghz 1.15v [Currently testing L048B284]
OK Time for more.
I'll post my settings now with E8500 dual core to achieve 600x7.5 IBT 10 loop stable.
Processor: E8500
OC From Memory Level Up: Auto
Ai Overclock Tuner: Manual
FSB Frequency: 600
Ratio CMOS Setting: 7.5
CPU Clock Skew: -400ps
NB Clock Skew: -200ps
FSB Strap to North Bridge: 266 MHz
DRAM Frequency: 1805 MHz
DRAM Timing Control: Manual
1st Information: 7-6-5-18 tRFC 72 (all other subtimings on auto)
DRAM Static Read Control: Disabled
DRAM Dynamic Write Control: Disabled
Ai Clock Twister: Auto
Ai Transaction Booster: tRD = 8
EPU II Phase Control: Auto
PCIE Frequency: 103
CPU Voltage: 1.3625
Load-Line Calibration: Enabled
CPU PLL Voltage: 1.61
FSB Termination Voltage: 1.37841
North Bridge Voltage: 1.65
DRAM Voltage: 2.00131
South Bridge 1.5 Voltage: 1.61
South Bridge 1.1 Voltage: 1.08
DRAM Channel A CMD Skew: Advance 100ps
DRAM Channel B CMD Skew: Advance 50ps
CPU GTL Reference (0): AUTO
CPU GTL Reference (1): AUTO
CPU GTL Reference (2): AUTO
CPU GTL Reference (3): AUTO
NB GTL Reference: +20mV
DDR2 ChA Reference Voltage: Auto
DDR2 ChB Reference Voltage: +25mv
North Bridge DDR Reference: +25mv
CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
Note: If you want to get 600FSB 4.5Ghz stable with 333 Strap you will need ot adjust CPU Skew to 300~400ps and NB skew to 100ps. At least these settings works for me.
Intel XEON X5650 B1 Retail x2 3012A692
EVGA Classified SR-2 BIOS A50
Crucial Ballistix PC3-1333 CL6 D9GTR 2G Kit (Active)
Crucial Ballistix PC3-2000 CL9 D9GTS 2G Kit (Active)
Thermaltake V1R (in use, without heatpipe)
Cooler Master Silent Pro M 1000W PSU
Galaxy GTX 275 (Digital PWM)
WD 10EALX
Overclock:
Currently running @ Default.
Intel i7-2600K (L041C107, L048B284, L050A853)
Asus P8P67 Pro BIOS 1305
WC setup EK Supreme HF GOLD Edition powered by BlackICE GTX 480
G.Skill 12800CL7D-4GBECO x2 packs
WD 10EALX
Intel X25-M 120GB
MSI NGTX560Ti Twin Frozer SLI
Overclock:
40x100 4Ghz 1.15v [Currently testing L048B284]
i just tried changing the NB and CPU skew to combinations of delay 100, 200, and 300 and it won't boot. it wants exactly 200 CPU and 100 to even boot at 500fsb.
i upped the vtt, pll, and NB voltage and it's not locking anymore. however, core 2 still fails prime after an hour but the other 3 cores were stable for over 7 hours. perhaps if you get lock ups too, try upping some of the voltages
thanks ragheb, you've answered both my questions to ci2kla... though it seems that 266 strap/2:3/tRD8 is relatively inefficient: 333strap/5:8 gives same performance even with CL8/tRD9, but less vNB needed.
At this clock with CL7/tRD8 on 333strap, the Read difference is quite large.
2.1V vDIMM could be enough for that..![]()
Maximus V GENE [0086] :: 3770K L212B244 :: H70 :: EB3103A (PSC)
CL|WCL|RTL performance (SB) : 32M scaling charts : PSC WCL > CL performance bug
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