- Aug 30, 2008
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Hello
I can get my rig 100% stable with BIOS at default settings for my 2x2GB RAM. The default settings on my MB (GA-X48T-DQ6) are 1333MHz at 7-7-7-20 timings at 1.728V. I tested the RAM / rig with Memtest and Prime95 over night for 7+ hours without any errors
It is stated that my MB supports up to 1900MHz, although I've seen some people running RAM at 2000MHz on this MB.
The RAM at 1800Mhz has timings of 8-8-8-27 and the voltage should be in the range 1.9V to 1.95V.
My CPU is QX9770 running at stock speeds (3.2GHz at 8 x 400Mhz).
These are the BIOS settings in MB Intelligent Tweaker at default speeds:
CPU Clock Ratio: 8x
Fine CPU Clock Ratio: +0.0
CPU Host Clock Control: Disabled
PCI Express Frequency: Auto
C.I.A. 2: Disabled
Performance Enhance: Standard
System Memory Multiplier: Auto (3:5 or 3.33D)
DRAM Timing Selectable: Auto
CAS Latency Time: Auto (7)
DRAM RAS# to CAS# Delay: Auto (7)
DRAM RAS# Precharge: Auto (7)
Precharge Delay (tRAS): Auto (20)
Advance Timing Control
Act to Act Delay (tRRD): Auto (4)
Rank Write to Read Delay: Auto (5)
Write to Precharge Delay: Auto (10)
Refresh to ACT Delay: Auto (60)
Read to Precharge Delay: Auto (5)
Static tRead Value: Auto (8)
Static tRead Phase Adjust: Auto (0)
Command Rate (CMD): Auto (1)
DDR3 Overvoltage Control: Normal (1.728V)
I have tried the following to get 1600Mhz RAM:
PCI Express Frequency: Auto and 100MHz (after reading Graysky's sticky)
Performance Enhance: Turbo and Extreme
System Memory Multiplier: 4.00D (or 2:1)
DRAM Timing Selectable: Manual
CAS Latency Time: 8 (I figured that this is timing specified for 1800MHz, so it should be able to do this easily at 1600Mhz. I then increased it to 9 without success)
DRAM RAS# to CAS# Delay: 8 (I figured that this is timing specified for 1800MHz, so it should be able to do this easily at 1600Mhz. I then increased it to 9 without success)
DRAM RAS# Precharge: 8 (I figured that this is timing specified for 1800MHz, so it should be able to do this easily at 1600Mhz. I then increased it to 9 without success)
Precharge Delay (tRAS): 27 (I figured that this is timing specified for 1800MHz, so it should be able to do this easily at 1600Mhz. I then increased it to 28 without success)
DDR3 Overvoltage Control: +0.35V and +0.4V (1.528V base voltage +??V to get as close to 1.9V as possible)
And left the advanced timing settings to Auto
This caused the PC to freeze randomly in WinXP (32 bit) and memtest would run for less than 5 mins before freezing.
I have read a few articles on what the advanced timings mean, but to be honest I was none the wiser after (the technobabble went over my head).
I think I may have to mess with the advanced settings to get it stable at 1600MHz, but I have no idea which to adjust and what value I should start at.
I know others have mentioned that this MB generally doesn't like OCZ RAM, but this is becoming ridiculous to get it work at 1600MHz (and not even at 1800MHz).
Any help would be appreciated (especially if you have a link to an idiots guide for advanced timings for RAM - I'm willing to learn)
btw. I bought the 1800Mhz RAM because I want to eventually oc the CPU and I figure that I will have to increase the FSB to 450Mhz or more to achieve this.
NOTE: MOVED FROM COMPUTER HELP CATEGORY
I can get my rig 100% stable with BIOS at default settings for my 2x2GB RAM. The default settings on my MB (GA-X48T-DQ6) are 1333MHz at 7-7-7-20 timings at 1.728V. I tested the RAM / rig with Memtest and Prime95 over night for 7+ hours without any errors
It is stated that my MB supports up to 1900MHz, although I've seen some people running RAM at 2000MHz on this MB.
The RAM at 1800Mhz has timings of 8-8-8-27 and the voltage should be in the range 1.9V to 1.95V.
My CPU is QX9770 running at stock speeds (3.2GHz at 8 x 400Mhz).
These are the BIOS settings in MB Intelligent Tweaker at default speeds:
CPU Clock Ratio: 8x
Fine CPU Clock Ratio: +0.0
CPU Host Clock Control: Disabled
PCI Express Frequency: Auto
C.I.A. 2: Disabled
Performance Enhance: Standard
System Memory Multiplier: Auto (3:5 or 3.33D)
DRAM Timing Selectable: Auto
CAS Latency Time: Auto (7)
DRAM RAS# to CAS# Delay: Auto (7)
DRAM RAS# Precharge: Auto (7)
Precharge Delay (tRAS): Auto (20)
Advance Timing Control
Act to Act Delay (tRRD): Auto (4)
Rank Write to Read Delay: Auto (5)
Write to Precharge Delay: Auto (10)
Refresh to ACT Delay: Auto (60)
Read to Precharge Delay: Auto (5)
Static tRead Value: Auto (8)
Static tRead Phase Adjust: Auto (0)
Command Rate (CMD): Auto (1)
DDR3 Overvoltage Control: Normal (1.728V)
I have tried the following to get 1600Mhz RAM:
PCI Express Frequency: Auto and 100MHz (after reading Graysky's sticky)
Performance Enhance: Turbo and Extreme
System Memory Multiplier: 4.00D (or 2:1)
DRAM Timing Selectable: Manual
CAS Latency Time: 8 (I figured that this is timing specified for 1800MHz, so it should be able to do this easily at 1600Mhz. I then increased it to 9 without success)
DRAM RAS# to CAS# Delay: 8 (I figured that this is timing specified for 1800MHz, so it should be able to do this easily at 1600Mhz. I then increased it to 9 without success)
DRAM RAS# Precharge: 8 (I figured that this is timing specified for 1800MHz, so it should be able to do this easily at 1600Mhz. I then increased it to 9 without success)
Precharge Delay (tRAS): 27 (I figured that this is timing specified for 1800MHz, so it should be able to do this easily at 1600Mhz. I then increased it to 28 without success)
DDR3 Overvoltage Control: +0.35V and +0.4V (1.528V base voltage +??V to get as close to 1.9V as possible)
And left the advanced timing settings to Auto
This caused the PC to freeze randomly in WinXP (32 bit) and memtest would run for less than 5 mins before freezing.
I have read a few articles on what the advanced timings mean, but to be honest I was none the wiser after (the technobabble went over my head).
I think I may have to mess with the advanced settings to get it stable at 1600MHz, but I have no idea which to adjust and what value I should start at.
I know others have mentioned that this MB generally doesn't like OCZ RAM, but this is becoming ridiculous to get it work at 1600MHz (and not even at 1800MHz).
Any help would be appreciated (especially if you have a link to an idiots guide for advanced timings for RAM - I'm willing to learn)
btw. I bought the 1800Mhz RAM because I want to eventually oc the CPU and I figure that I will have to increase the FSB to 450Mhz or more to achieve this.
NOTE: MOVED FROM COMPUTER HELP CATEGORY
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