While bandwidth of sandy might not be as fast as winnie/newcastle, the cpu sures does bring out the best in my ram. OCZ PC3200 Gold UTT BH-5 does 6-8mhz faster on sandy @268mhz 2-2-2-6 at 3.64v
System
4000+ CABHE 0515 SPMW water cooled
DFI NF4 SLI-D 414-3 beta bios
120GB WD 1200JB
650W Silverstone SLI PSU
WinXP Pro SP2
NF4 6.53 remix chipset drivers
2x 512MB OCZ PC3200 Gold UTT BH-5 dual channel kit
@10x 255mhz 2-2-2-5 7-14-2-2-1-2 at 3.35-3.40v
chipset = 1.6v
LDT = 1.5v
LDT 4x
CPC = Enabled
CAS Latency(CL) = 2
RAS to CAS(Trcd) = 2
Min RAS# Active time(Tras) = 5
Row Precharge Time(Trp) = 2
Row Cycle Time(Trc) = 7
Row Refresh Cycle Time(Trfc) = 14
Row to Row Delay(Trrd) = 2
Write Recovery Time(Twr) = 2
Write to Read Delay(Twtr) = 1
Read to Write Delay(Trwt) = 2
Refresh Period (Tref) = 3120
Write CAS Latency(Twcl) = Auto
DRAM Bank Interleave = Enabled
Skew = AUTO
Skew Value = 0
DRAM Drive Strength = Level 3
DRAM Data Drive Strength = Level 1
Max Async Latency = 7ns
Read Preamble Time = 5ns
Idle Cycle Limit = 256 or 16
Dynamic Counter = Enabled
R/W Queue Bypass = 16x or 8x
Bypass Max = 7x
32 byte Granularity = Disable(8burst)
SLI enabled
2x eVGA 6800U PCI-E SLI 72.03
SLI Disabled + services disabled
1x eVGA 6800U PCI-E SLI 72.03
------
another example
2x 512MB OCZ PC3200 Gold UTT BH-5 dual channel kit
@10x 267mhz 1.5-2-2-6 7-17-3-2-1-3 at 3.6-3.64v
chipset = 1.6v
LDT = 1.5v
LDT 4x
CPC = Enabled
CAS Latency(CL) = 1.5
RAS to CAS(Trcd) = 2
Min RAS# Active time(Tras) = 5
Row Precharge Time(Trp) = 2
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) = 1
Read to Write Delay(Trwt) = 3
Refresh Period (Tref) = 3120
Write CAS Latency(Twcl) = Auto
DRAM Bank Interleave = Enabled
Skew = AUTO
Skew Value = 0
DRAM Drive Strength = Level 3
DRAM Data Drive Strength = Level 1
Max Async Latency = 7ns
Read Preamble Time = 5ns
Idle Cycle Limit = 256 or 16
Dynamic Counter = Enabled
R/W Queue Bypass = 8x
Bypass Max = 7x
32 byte Granularity = Disable(8burst)
SLI enabled
2x eVGA 6800U PCI-E SLI 72.03
versus
2x 512MB OCZ PC3200 Gold UTT BH-5 dual channel kit
@10x 268mhz 2-2-2-6 7-17-3-2-1-3 at 3.6-3.64v
chipset = 1.6v
LDT = 1.5v
LDT 4x
CPC = Enabled
CAS Latency(CL) = 2
RAS to CAS(Trcd) = 2
Min RAS# Active time(Tras) = 5
Row Precharge Time(Trp) = 2
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) = 1
Read to Write Delay(Trwt) = 3
Refresh Period (Tref) = 3120
Write CAS Latency(Twcl) = Auto
DRAM Bank Interleave = Enabled
Skew = AUTO
Skew Value = 0
DRAM Drive Strength = Level 3
DRAM Data Drive Strength = Level 1
Max Async Latency = 7ns
Read Preamble Time = 5ns
Idle Cycle Limit = 256
Dynamic Counter = Enabled
R/W Queue Bypass = 8x
Bypass Max = 7x
32 byte Granularity = Disable(8burst)
SLI Disabled + services disabled
1x eVGA 6800U PCI-E SLI 72.03
My personal best and faster 32M time i've ever done so far.
That's like 72-76+ seconds faster time difference at 32M!
interesting to see that the services make such a large difference on your pi times.