Hi there.
I've just finished building my new system, and installing Windows (XP Pro) on BIOS default for everything.
Now it's working I thought I'd have a look in the BIOS and see what needs to be changed.
I have the Asus P5B motherboard, 2 x 1GB Corsair XMS6400C4, Intel Conroe E6600, Gainward GT7900 512MB Golden Sample.
OK, so far nothing overclocked.
I noticed from my BIOS that the auto memory setting is giving me PC5300, and not PC6400. I'm not sure if that's the correct speed, to match the rest of the system with 1066FSB etc
I thought I'd change the ram speed to 800Mhz, and the BIOS reports PC6400 when posting.
Windows runs fine, ran for 24 hours, did a lot of video encoding, no problems there.
I went into the BIOS again and noticed that the ram timings on auto were set to slower than the specs of my ram... off the top of my head 5-5-5-16 or something.
I changed these to 4-4-4-12, and rebooted.
Windows gets almost to the end of the boot sequence, and the first time I had an "NT Authority" message telling me it would auto shut down my system in 60 secs. The second boot got as far as the desktop, and a bluescreen.
I am now, as I type this, running back at PC5300 (auto) setting, but with timings on 4-4-4-12.
Obviously I'm not entirely sure what I'm doing in there
so thought I'd ask the clever people in here who spend so much time optimizing their stuff.
I'm not attempting to overclock (yet) just thought I'd try to get the thing running at it's default settings first.
Am I better off leaving the XMS6400 at PC5300? Or running at PC6400 with slower timings? Both are stable, just not at 800Mhz and 4-4-4-12.
Speaking of overclocking, I did take a look at the crap that Asus give out... the *** and AI stuff. Just gave it a basic overclock setting, which gave me around 2.6Ghz, stable, but it also seemed to disable speedstepping, which is something I was hoping to use as the system is on all the time, but not necessarily busy. The Asus manual is terrible on this subject, useless in fact, with describing AI and ***.
Anyway, sorry, going off topic now.... first things first, I want to get the memory part sorted out, then I can take my Motherboard questions to the correct forum.
So basically, should I be expecting my E6600 system to be able to run my ram at 800 Mhz with 4-4-4-12?
Many thanks,
V1N.
P.S. I just had a look at the CPU-Z txt dump which I thought I'd include at the bottom of this for more info.
On the screen it tells me (under SPD) that
Timings Table:-
400 Mhz 533Mhz
0.0 0.0
4 5
4 5
12 15
Yet the dump says
Timings table
Frequency (MHz) 270 400
CAS# 4.0 5.0
RAS# to CAS# delay 4 5
RAS# Precharge 4 5
TRAS 13 18
TRC 15 22
So, I'm either (probably) reading it wrong, but according to the txt dump
I should have 800Mhz set to 5-5-5-18? Even though, as I put above,
the program on screen, tells me "400Mhz 0.0-4-4-12"
Hmm, I need another coffee
Thanks again for anybody who can explain this better to me,
and let me know which should yield better performance, PC6400 at lower timings, or PC5300 at 4-4-4-12 (numbers originally got from OC's website where I purchased it)
V1N
EDIT: Just found this
http://forums.overclockers.co.uk/showthread.php?t=17611001
Seems this guy has a similar system to mine (I have an Antec Neo 550W btw)
so I'll keep my eye on that thread too... though somebody there did say to
"Turn off SPD memory timings set them yourself, maybe 4-4-4-12
Set memory to DDR-800 1:1"
which is exactly what I did, and couldn't run Windows with no other clocking.
----
----------------------
CPU-Z version 1.35
----------------------
CPUID Output
------------------------------------------------------------------------------
Number of CPUs 2
CPU #1
APIC ID 0
Name Intel Core 2 Duo E6600
Code name Conroe
Specification Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz
Family/Model/Stepping 6F6
Extended Family/Model 6/F
Package LGA 775 (0h)
Core Stepping B2
Technology 65nm
Instructions Sets MMX, SSE, SSE2, SSE3, SSE4, EM64T
Features NX, VT
Clock Speed 1596.4 MHz
Clock multiplier x6.0
Front Side Bus Frequency 266.1 MHz
Bus Speed 1064.2 MHz
Stock frequency 2400 MHz
L1 Data Cache 32 KBytes, 8-way set associative, 64 Bytes line size
L1 Instruction Cache 32 KBytes, 8-way set associative, 64 Bytes line size
L2 Cache 4096 KBytes, 16-way set associative, 64 Bytes line size
L2 Speed 1596.4 MHz (Full)
L2 Location On Chip
L2 Data Prefetch Logic yes
L2 Bus Width 256 bits
CPU #2
APIC ID 1
Name Intel Core 2 Duo E6600
Code name Conroe
Specification Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz
Family/Model/Stepping 6F6
Extended Family/Model 6/F
Package LGA 775 (0h)
Core Stepping B2
Technology 65nm
Instructions Sets MMX, SSE, SSE2, SSE3, SSE4, EM64T
Features NX, VT
Clock Speed 1596.4 MHz
Clock multiplier x6.0
Front Side Bus Frequency 266.1 MHz
Bus Speed 1064.2 MHz
Stock frequency 2400 MHz
L1 Data Cache 32 KBytes, 8-way set associative, 64 Bytes line size
L1 Instruction Cache 32 KBytes, 8-way set associative, 64 Bytes line size
L2 Cache 4096 KBytes, 16-way set associative, 64 Bytes line size
L2 Speed 1596.4 MHz (Full)
L2 Location On Chip
L2 Data Prefetch Logic yes
L2 Bus Width 256 bits
Chipset
------------------------------------------------------------------------------
Northbridge Intel P965/G965 rev. C1
Southbridge Intel 82801HB (ICH8) rev. 02
Graphic Interface PCI-Express
PCI-E Link Width x16
PCI-E Max Link Width x16
Memory Type DDR2
Memory Size 2048 MBytes
Memory Frequency 332.6 MHz (4:5)
CAS# 4.0
RAS# to CAS# 4
RAS# Precharge 4
Cycle Time (tRAS) 12
Memory SPD
------------------------------------------------------------------------------
DIMM #1
General
Memory type DDR2
Manufacturer (ID) Corsair (7F7F9E0000000000)
Size 1024 MBytes
Max bandwidth PC6400 (400 MHz)
Part number CM2X1024-6400C4
Manufacturing date Week 25/Year 06
Attributes
Number of banks 2
Data width 64 bits
Correction None
EPP yes (2 profiles)
Timings table
Frequency (MHz) 270 400
CAS# 4.0 5.0
RAS# to CAS# delay 4 5
RAS# Precharge 4 5
TRAS 13 18
TRC 15 22
EPP profile 1 (full)
Voltage level 2.000 V
Address Command Rate 2T
Cycle time 2.500 ns (400.0 MHz)
tCL 0.0 clocks
tRCD 4 clocks (10.00 ns)
tRP 4 clocks (10.00 ns)
tRAS 12 clocks (30.00 ns)
tRC 22 clocks (55.00 ns)
tWR 6 clocks (15.00 ns)
EPP profile 2 (full)
Voltage level 2.200 V
Address Command Rate 2T
Cycle time 1.875 ns (533.3 MHz)
tCL 0.0 clocks
tRCD 5 clocks (9.50 ns)
tRP 5 clocks (9.50 ns)
tRAS 15 clocks (28.00 ns)
tRC 30 clocks (55.00 ns)
tWR 8 clocks (15.00 ns)
DIMM #3
General
Memory type DDR2
Manufacturer (ID) Corsair (7F7F9E0000000000)
Size 1024 MBytes
Max bandwidth PC6400 (400 MHz)
Part number CM2X1024-6400C4
Manufacturing date Week 25/Year 06
Attributes
Number of banks 2
Data width 64 bits
Correction None
EPP yes (2 profiles)
Timings table
Frequency (MHz) 270 400
CAS# 4.0 5.0
RAS# to CAS# delay 4 5
RAS# Precharge 4 5
TRAS 13 18
TRC 15 22
EPP profile 1 (full)
Voltage level 2.000 V
Address Command Rate 2T
Cycle time 2.500 ns (400.0 MHz)
tCL 0.0 clocks
tRCD 4 clocks (10.00 ns)
tRP 4 clocks (10.00 ns)
tRAS 12 clocks (30.00 ns)
tRC 22 clocks (55.00 ns)
tWR 6 clocks (15.00 ns)
EPP profile 2 (full)
Voltage level 2.200 V
Address Command Rate 2T
Cycle time 1.875 ns (533.3 MHz)
tCL 0.0 clocks
tRCD 5 clocks (9.50 ns)
tRP 5 clocks (9.50 ns)
tRAS 15 clocks (28.00 ns)
tRC 30 clocks (55.00 ns)
tWR 8 clocks (15.00 ns)
I've just finished building my new system, and installing Windows (XP Pro) on BIOS default for everything.
Now it's working I thought I'd have a look in the BIOS and see what needs to be changed.
I have the Asus P5B motherboard, 2 x 1GB Corsair XMS6400C4, Intel Conroe E6600, Gainward GT7900 512MB Golden Sample.
OK, so far nothing overclocked.
I noticed from my BIOS that the auto memory setting is giving me PC5300, and not PC6400. I'm not sure if that's the correct speed, to match the rest of the system with 1066FSB etc
I thought I'd change the ram speed to 800Mhz, and the BIOS reports PC6400 when posting.
Windows runs fine, ran for 24 hours, did a lot of video encoding, no problems there.
I went into the BIOS again and noticed that the ram timings on auto were set to slower than the specs of my ram... off the top of my head 5-5-5-16 or something.
I changed these to 4-4-4-12, and rebooted.
Windows gets almost to the end of the boot sequence, and the first time I had an "NT Authority" message telling me it would auto shut down my system in 60 secs. The second boot got as far as the desktop, and a bluescreen.
I am now, as I type this, running back at PC5300 (auto) setting, but with timings on 4-4-4-12.
Obviously I'm not entirely sure what I'm doing in there
so thought I'd ask the clever people in here who spend so much time optimizing their stuff.
I'm not attempting to overclock (yet) just thought I'd try to get the thing running at it's default settings first.
Am I better off leaving the XMS6400 at PC5300? Or running at PC6400 with slower timings? Both are stable, just not at 800Mhz and 4-4-4-12.
Speaking of overclocking, I did take a look at the crap that Asus give out... the *** and AI stuff. Just gave it a basic overclock setting, which gave me around 2.6Ghz, stable, but it also seemed to disable speedstepping, which is something I was hoping to use as the system is on all the time, but not necessarily busy. The Asus manual is terrible on this subject, useless in fact, with describing AI and ***.
Anyway, sorry, going off topic now.... first things first, I want to get the memory part sorted out, then I can take my Motherboard questions to the correct forum.
So basically, should I be expecting my E6600 system to be able to run my ram at 800 Mhz with 4-4-4-12?
Many thanks,
V1N.
P.S. I just had a look at the CPU-Z txt dump which I thought I'd include at the bottom of this for more info.
On the screen it tells me (under SPD) that
Timings Table:-
400 Mhz 533Mhz
0.0 0.0
4 5
4 5
12 15
Yet the dump says
Timings table
Frequency (MHz) 270 400
CAS# 4.0 5.0
RAS# to CAS# delay 4 5
RAS# Precharge 4 5
TRAS 13 18
TRC 15 22
So, I'm either (probably) reading it wrong, but according to the txt dump
I should have 800Mhz set to 5-5-5-18? Even though, as I put above,
the program on screen, tells me "400Mhz 0.0-4-4-12"
Hmm, I need another coffee
Thanks again for anybody who can explain this better to me,
and let me know which should yield better performance, PC6400 at lower timings, or PC5300 at 4-4-4-12 (numbers originally got from OC's website where I purchased it)
V1N
EDIT: Just found this
http://forums.overclockers.co.uk/showthread.php?t=17611001
Seems this guy has a similar system to mine (I have an Antec Neo 550W btw)
so I'll keep my eye on that thread too... though somebody there did say to
"Turn off SPD memory timings set them yourself, maybe 4-4-4-12
Set memory to DDR-800 1:1"
which is exactly what I did, and couldn't run Windows with no other clocking.
----
----------------------
CPU-Z version 1.35
----------------------
CPUID Output
------------------------------------------------------------------------------
Number of CPUs 2
CPU #1
APIC ID 0
Name Intel Core 2 Duo E6600
Code name Conroe
Specification Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz
Family/Model/Stepping 6F6
Extended Family/Model 6/F
Package LGA 775 (0h)
Core Stepping B2
Technology 65nm
Instructions Sets MMX, SSE, SSE2, SSE3, SSE4, EM64T
Features NX, VT
Clock Speed 1596.4 MHz
Clock multiplier x6.0
Front Side Bus Frequency 266.1 MHz
Bus Speed 1064.2 MHz
Stock frequency 2400 MHz
L1 Data Cache 32 KBytes, 8-way set associative, 64 Bytes line size
L1 Instruction Cache 32 KBytes, 8-way set associative, 64 Bytes line size
L2 Cache 4096 KBytes, 16-way set associative, 64 Bytes line size
L2 Speed 1596.4 MHz (Full)
L2 Location On Chip
L2 Data Prefetch Logic yes
L2 Bus Width 256 bits
CPU #2
APIC ID 1
Name Intel Core 2 Duo E6600
Code name Conroe
Specification Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz
Family/Model/Stepping 6F6
Extended Family/Model 6/F
Package LGA 775 (0h)
Core Stepping B2
Technology 65nm
Instructions Sets MMX, SSE, SSE2, SSE3, SSE4, EM64T
Features NX, VT
Clock Speed 1596.4 MHz
Clock multiplier x6.0
Front Side Bus Frequency 266.1 MHz
Bus Speed 1064.2 MHz
Stock frequency 2400 MHz
L1 Data Cache 32 KBytes, 8-way set associative, 64 Bytes line size
L1 Instruction Cache 32 KBytes, 8-way set associative, 64 Bytes line size
L2 Cache 4096 KBytes, 16-way set associative, 64 Bytes line size
L2 Speed 1596.4 MHz (Full)
L2 Location On Chip
L2 Data Prefetch Logic yes
L2 Bus Width 256 bits
Chipset
------------------------------------------------------------------------------
Northbridge Intel P965/G965 rev. C1
Southbridge Intel 82801HB (ICH8) rev. 02
Graphic Interface PCI-Express
PCI-E Link Width x16
PCI-E Max Link Width x16
Memory Type DDR2
Memory Size 2048 MBytes
Memory Frequency 332.6 MHz (4:5)
CAS# 4.0
RAS# to CAS# 4
RAS# Precharge 4
Cycle Time (tRAS) 12
Memory SPD
------------------------------------------------------------------------------
DIMM #1
General
Memory type DDR2
Manufacturer (ID) Corsair (7F7F9E0000000000)
Size 1024 MBytes
Max bandwidth PC6400 (400 MHz)
Part number CM2X1024-6400C4
Manufacturing date Week 25/Year 06
Attributes
Number of banks 2
Data width 64 bits
Correction None
EPP yes (2 profiles)
Timings table
Frequency (MHz) 270 400
CAS# 4.0 5.0
RAS# to CAS# delay 4 5
RAS# Precharge 4 5
TRAS 13 18
TRC 15 22
EPP profile 1 (full)
Voltage level 2.000 V
Address Command Rate 2T
Cycle time 2.500 ns (400.0 MHz)
tCL 0.0 clocks
tRCD 4 clocks (10.00 ns)
tRP 4 clocks (10.00 ns)
tRAS 12 clocks (30.00 ns)
tRC 22 clocks (55.00 ns)
tWR 6 clocks (15.00 ns)
EPP profile 2 (full)
Voltage level 2.200 V
Address Command Rate 2T
Cycle time 1.875 ns (533.3 MHz)
tCL 0.0 clocks
tRCD 5 clocks (9.50 ns)
tRP 5 clocks (9.50 ns)
tRAS 15 clocks (28.00 ns)
tRC 30 clocks (55.00 ns)
tWR 8 clocks (15.00 ns)
DIMM #3
General
Memory type DDR2
Manufacturer (ID) Corsair (7F7F9E0000000000)
Size 1024 MBytes
Max bandwidth PC6400 (400 MHz)
Part number CM2X1024-6400C4
Manufacturing date Week 25/Year 06
Attributes
Number of banks 2
Data width 64 bits
Correction None
EPP yes (2 profiles)
Timings table
Frequency (MHz) 270 400
CAS# 4.0 5.0
RAS# to CAS# delay 4 5
RAS# Precharge 4 5
TRAS 13 18
TRC 15 22
EPP profile 1 (full)
Voltage level 2.000 V
Address Command Rate 2T
Cycle time 2.500 ns (400.0 MHz)
tCL 0.0 clocks
tRCD 4 clocks (10.00 ns)
tRP 4 clocks (10.00 ns)
tRAS 12 clocks (30.00 ns)
tRC 22 clocks (55.00 ns)
tWR 6 clocks (15.00 ns)
EPP profile 2 (full)
Voltage level 2.200 V
Address Command Rate 2T
Cycle time 1.875 ns (533.3 MHz)
tCL 0.0 clocks
tRCD 5 clocks (9.50 ns)
tRP 5 clocks (9.50 ns)
tRAS 15 clocks (28.00 ns)
tRC 30 clocks (55.00 ns)
tWR 8 clocks (15.00 ns)
Last edited: