- Joined
- May 4, 2006
- Location
- New York
Okay, so I've got the system in my sig assembled and now I'm seeing what it will do. I've got it up to 415x8 (3.32) at 1.375 vcore and I wanted to see what it would do if I dropped the multi to 7. I can get to 459x7 (3.213) at the same vcore but I can't get past that. At 460 it doesn't post. Nothing, nada. No beeps, nothing.
I think I've already eliminated the memory as I can run at 400x8 with a 4:5 divider at 4-4-4-10 timings. I've verified this with memtest86+. Well, at least I let it run for several hours with no errors. 9 passes, I think?
I've tried a lot of different voltages. Nothing seems to work. Here's what my BIOS looked like for the good OCs at both 7 & 8 multi:
AI Tuning ==================> Manual
CPU Frequency ==============> 415@8 & 459&7
DRAM Frequency =============> 830 & 918
PCI Express Frequency ========> 101
PCI Clock Synchronization Mode => 33.33 MHz
Spread Spectrum ============> Disabled
Memory Voltage =============> 2.3
CPU VCore Voltage ===========> 1.375 (1.4+ for the higher FSB)
FSB Termination Voltage =======> 1.40 (1.45 for the higher FSB)
NB VCore ==================> 1.45 (1.55 for the higher FSB)
SB Vcore (SATA, PCIE) ========> 1.60 (1.7 for the higher FSB)
ICH Chipset Voltage ==========> Auto (1.215 for the higher FSB)
CPU
Modify Ratio Support ==========> Enabled
Ratio CMOS Setting ===========> 8/7
C1E Support ================> Disabled
Max CPUID Value Limit =========> Disabled
Vanderpool Technology ========> Disabled
CPU TM function =============> Enabled
Execute Disable Bit ===========> Enabled
PECI ======================> Disabled
Advanced=>Northbridge Chipset Configuration
Memory Remap Feature =================> Disabled
Configure DRAM Timing by SPD ============> Disabled
DRAM CAS# Latency ============> 4 DRAM Clocks
DRAM RAS# to CAS# Delay =======> 4 DRAM Clocks
DRAM RAS Precharge ===========> 4 DRAM Clocks
DRAM RAS# Activate to Precha ====> 10 DRAM Clocks
DRAM Write Recovery Time =======> 4
DRAM TFRC ===================> 42
DRAM TRRD ===================> 10
Rank Write to Read Delay =========> 10
Read to Precharge Delay ==========> 10
Write to Precharge Delay =========> 10
Static Read C Disabled
Initiate Graphic Adapter =================> PEG/PCI
I didn't record the two? settings below this. I think one was PEG and it might have been disabled? In any case I left them at their default settings.
I also tried loosening the timings to 5-5-5-15 but that didn't help.
I also had problems at 420x8. Windows was extremely unstable. It kept dropping and rebooting. I really didn't play with the vcore to see if it would go higher. I just wanted to see if the CPU would pass the 3.213 mark I seem to be topping out at at 7 multi. I don't know if this is a valid assumption, but I am thinking if the CPU will do 3.32 @ 8 multi it should be able to produce a similar OC at 7 multi. I'm trying to isolate whether the wall is the CPU or MB. Is this a valid line of reasoning?
Anyway, I would appreciate any input. I guess I'm thinking the E6400 should go beyond where It's sticking and so should the MB.
By the way, at both the good OCs both cores were 51C - 53C (core temp) under dual Prime95 Small FFT torture tests for 3 hours with no errors.
The only other thing I can think of is maybe power issues? I am thinking I might try moving some fans off the MB headers. I have a YS-Tech 120mmX38mm 125 cfm fan in the CPU fan header, two Zalman 80mm 37.5 CFM fans, an OCZ memory cooler and a 40mm fan off a Swiftech NB cooler zip-tied to the NB sink and also running off MB fan headers.
I also have an array of other fans ... Two AC Ryan 77 cfm 120mm fans (blowhole and side panel feeding the YS-Tech), two 80mm Sunon 37 cfm fans in the side panel blowing on the video card and two Sunon 80mm 39 cfm fans for rear exhaust. Oh, plus a cold cathode line light running around my side panel window. I thought of disconnecting the cold cathode and three side panel fans.
So what do you think the limiting factor is? CPU, MB or PSU? Or my BIOS settings? Ah, one other thing ... I flashed from 507 to 910. Do I need to reinstall the drivers from my ASUS MB CD? Could that be causing any problems?
I think I've already eliminated the memory as I can run at 400x8 with a 4:5 divider at 4-4-4-10 timings. I've verified this with memtest86+. Well, at least I let it run for several hours with no errors. 9 passes, I think?
I've tried a lot of different voltages. Nothing seems to work. Here's what my BIOS looked like for the good OCs at both 7 & 8 multi:
AI Tuning ==================> Manual
CPU Frequency ==============> 415@8 & 459&7
DRAM Frequency =============> 830 & 918
PCI Express Frequency ========> 101
PCI Clock Synchronization Mode => 33.33 MHz
Spread Spectrum ============> Disabled
Memory Voltage =============> 2.3
CPU VCore Voltage ===========> 1.375 (1.4+ for the higher FSB)
FSB Termination Voltage =======> 1.40 (1.45 for the higher FSB)
NB VCore ==================> 1.45 (1.55 for the higher FSB)
SB Vcore (SATA, PCIE) ========> 1.60 (1.7 for the higher FSB)
ICH Chipset Voltage ==========> Auto (1.215 for the higher FSB)
CPU
Modify Ratio Support ==========> Enabled
Ratio CMOS Setting ===========> 8/7
C1E Support ================> Disabled
Max CPUID Value Limit =========> Disabled
Vanderpool Technology ========> Disabled
CPU TM function =============> Enabled
Execute Disable Bit ===========> Enabled
PECI ======================> Disabled
Advanced=>Northbridge Chipset Configuration
Memory Remap Feature =================> Disabled
Configure DRAM Timing by SPD ============> Disabled
DRAM CAS# Latency ============> 4 DRAM Clocks
DRAM RAS# to CAS# Delay =======> 4 DRAM Clocks
DRAM RAS Precharge ===========> 4 DRAM Clocks
DRAM RAS# Activate to Precha ====> 10 DRAM Clocks
DRAM Write Recovery Time =======> 4
DRAM TFRC ===================> 42
DRAM TRRD ===================> 10
Rank Write to Read Delay =========> 10
Read to Precharge Delay ==========> 10
Write to Precharge Delay =========> 10
Static Read C Disabled
Initiate Graphic Adapter =================> PEG/PCI
I didn't record the two? settings below this. I think one was PEG and it might have been disabled? In any case I left them at their default settings.
I also tried loosening the timings to 5-5-5-15 but that didn't help.
I also had problems at 420x8. Windows was extremely unstable. It kept dropping and rebooting. I really didn't play with the vcore to see if it would go higher. I just wanted to see if the CPU would pass the 3.213 mark I seem to be topping out at at 7 multi. I don't know if this is a valid assumption, but I am thinking if the CPU will do 3.32 @ 8 multi it should be able to produce a similar OC at 7 multi. I'm trying to isolate whether the wall is the CPU or MB. Is this a valid line of reasoning?
Anyway, I would appreciate any input. I guess I'm thinking the E6400 should go beyond where It's sticking and so should the MB.
By the way, at both the good OCs both cores were 51C - 53C (core temp) under dual Prime95 Small FFT torture tests for 3 hours with no errors.
The only other thing I can think of is maybe power issues? I am thinking I might try moving some fans off the MB headers. I have a YS-Tech 120mmX38mm 125 cfm fan in the CPU fan header, two Zalman 80mm 37.5 CFM fans, an OCZ memory cooler and a 40mm fan off a Swiftech NB cooler zip-tied to the NB sink and also running off MB fan headers.
I also have an array of other fans ... Two AC Ryan 77 cfm 120mm fans (blowhole and side panel feeding the YS-Tech), two 80mm Sunon 37 cfm fans in the side panel blowing on the video card and two Sunon 80mm 39 cfm fans for rear exhaust. Oh, plus a cold cathode line light running around my side panel window. I thought of disconnecting the cold cathode and three side panel fans.
So what do you think the limiting factor is? CPU, MB or PSU? Or my BIOS settings? Ah, one other thing ... I flashed from 507 to 910. Do I need to reinstall the drivers from my ASUS MB CD? Could that be causing any problems?
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