@3811Mhz - 9x423FSB 1:1 unlinked at 1.55v


Time to push the system further @3811Mhz - 9x423FSB 1:1 unlinked at 1.55v under load on air.
AI Tuning: Manual
Nvidia GPU Ex: Disabled
LinkBoost: Disabled

FSB - Memory Clock Mode: Unlinked
x FSB - Memory Raio: N/A
FSB (QDR), Mhz: 1694 (means 423FSB)
Actual FSB (QDR), Mhz: 1694
MEM (DDR), Mhz: 847 (means 423mhz speeds)
Actual MEM (DDR), Mhz: 847

Vcore Voltage: 1.675v = 1.57v windows idle/1.55v load
Memory Voltage: 2.100v for 2T stock tests and 2.200v for 1T tweaked
1.2v HT Voltage: 1.4v
NB Core Voltage: 1.4v
SB Core Voltage: 1.55v
CPU VTT Voltage: 1.4v
DDRII Controller Ref Voltage: AUTO
DDRII Channel A Ref Voltage: AUTO
DDRII Channel B Ref Voltage: AUTO

tCL (CAS Latency): 4
tRCD: 4
tRP: 4
tRAS: 12
Command Per Clock (CMD): 2 clock (2T) vs 1 clock (1T)

Advance Memory Settings
tRRD: AUTO
tRC: AUTO
tWR: AUTO
tWTR: AUTO
tREF: AUTO
Async Latency: AUTO

CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
MCP PCIE Spread Spectrum: Disabled
SATA Spread Spectrum: Disabled
LDT Spread Spectrum: Disabled

CPU Internal Thermal Control: Disabled
Limit CPUID MaxVal: Disabled
Enhanced C1 (C1E): Disabled
Execute Disable Bit: Disabled
Virtualization Technology: Disabled
Enhanced Intel Speedstep Tech: Disabled
LDT Frequency: 5x

PCIEX16_1 Frequency (Mhz): 100
PCIEX16_2 Frequency (Mhz): 100
PCIEX16_3 Frequency (Mhz): 100
SPP<->MCP Ref Clock, Mhz: 200
Both 2T and 1T Super Pi 32M were run with 4x cpuz windows open, Asus PC Probe2 running, memset v3.1 beta open as I was also monitoring the PC Probe2 reported temps while 32M ran. 2T managed to screen capture half way mark but 1T I forgot to do the half way mark screen capture :o

Super Pi 32M
@3811Mhz - 9x423FSB 1:1

2T = 16m 01.093s
1T = 15m 20.203s
1T tweaked 4-24-6-8 = 15m 12.359s
1T tweaked 4-15-6-8 tRFC 35 = 14m 19.844s

2T half way mark


2T completed


1T completed
- extra vdimm wasn't necessary just forgot to set it back to 2.1v :heh:


Notice the advance timings when set to AUTO result in different settings for 2T vs 1T:

2T Bios set = Memset reported
tRRD: AUTO = 4
tRC: AUTO = 24
tWR: AUTO = 6
tWTR: AUTO = 8

vs

1T Bios set = Memset reported
tRRD: AUTO = 5 - loosened from 4 in 2T
tRC: AUTO = 25 - loosened from 24 in 2T
tWR: AUTO = 6
tWTR: AUTO = 9 - loosened from 8 in 2T

tRFC which isn't available as an option in bios for both 1T and 2T were set AUTO = 45.

Note, that with 2x512MB modules it will be ~20 seconds slower than same clocked/timing 2x1GB modules for Super Pi 32M.