Motherboard : DFI NF4 Ultra-D
DRAM Make, Model and Chips :
PQI 3200-1024DPU, TCCD ver F
Bios: 6/23-3
CPU: AMD A64 3500+ Venice LBBLE
VC: ATI X800XL
OS: Windows XP Professional w/SP2
Chipset Drivers: Official 6.66
DRAM Timings:
FSB Bus Frequency 255
LDT/FSB Frequency Ratio x3
LDT Bus Transfer Width 16/16
CPU/FSB Frequency Ratio 11
PCI express Frequency 100
K8 Cool 'n' Quiet Support Disable
CPU VID Startup Value 1.45
CPU VID Control 1.45
CPU VID Special Control 110%
LTD Voltage Control 1.2
Chipset Voltage Control 1.5
Dram Voltage Control 2.6
Dram Frequency Set(Mhz) 200(DRAM/FSB:1/01)
Command Per Clock(CPC) Enable
CAS Latency Control(tCL) 2.5
RAS# to CAS# Delay(tRCD) 03
Min RAS# Active Timing(tRAS) 10
Row Precharge Timing(tRP) 3
Row Cycle Time(tRC) 7
Row Refresh Cycle Time(tRFC) 17
Row to Row Delay(tRRD) 3
Write Recovery Time(tWR) 2
Write to Read Delay(tWTR) 2
Read to Write Delay(tRTW) 3
Refresh Period(tREF) 4708
Write CAS# Latency(tWCL) Auto
DRAM Bank Interleave Enabled
DQS Skew Control Auto
DQS Skew Value 0
DRAM Drive Strength Auto
DRAM Data Drive Strength Auto
Max Async Latency Auto
DRAM Response Time Normal
Read Preamble Time Auto
Idle Cycle Limit 256 cycles
Dynamic Counter Disable
R/W Queue Bypass 16x
Bypass Max 7x
32 Byte Granulation Disable (4bursts)
Comments: These modules will not do well if they are off 2.6V in either direction. These settings are
24+ hours Prime95 stable for me.
Will post more info on Ram stable settings soon.