KBD
07-09-2007, 08:12 AM
Like the title says i need help with this issue, i just built my system about 2 months ago and i'm using this memory with Gigabyte GA-M59SLI-S5 mobo, which auto detected this RAM at 5-5-5-18 @1.8v. I want to run this memory at it's specs which are 4-4-4-12 @2.1v. I started reading up on this issue and i found this in the Corsair forums which was posted by RAM guy. These are all the BIOS changes that need to be made for this RAM, the 2 Asus boards are used as an example:
Testing parameters for Twinx/XMS2-6400C4:
Twin2x2048-6400C4 Data Sheet
Motherboard make and model: Asus P5WD2 or M2N32-SLI Premium/Deluxe
Each pair is tested and packaged together using the following settings:
AI Over Clock Tuner: Manual
CPU External Frequency: Manually set to 200MHz
DDR2 SDRAM Clock: Manually set to 800MHz
PCI Express Freq: Auto
PCI Freq: 33.33
Performance Mode: Standard
DRAM Timing Selectable: Manual
SDRAM CAS Latency: 4T
SDRAM RAS to CAS Delay (tRCD): 4T
SDRAM Row Precharge (tRP): 4T
SDRAM Active to Precharge Delay (tRAS): 12T
SDRAM Write Recovery Time: 5
Write to Precharge Delay: 15 (If it's Listed)
Command Rate: 2T
DDR2 SDRAM Voltage: 2.1
Advanced voltage control
CPU Vcore offset:_Disabled
DDR2 Termination: 0.5x
CPU to NB HT:____1.200V
NB to SB HT:_____AUTO
NB Core/PCI-E:___AUTO
SB Core/PCI-E:___AUTO
SB Standby core:_+1.500V
Output driver control
CKE:______AUTO
CS/ODT:__1.00X
ADD/CMD:_1.00X
MEMCLK:__1.00X
Chipset Core Voltage: Auto
All other settings are motherboard defaults.
Maximum DDR2 recommended VDIMM: 2.1 Volts
I don't really get it, i have to change all these things to have this RAM run properly? First of all my mobo doesn't even have all these settings, i only got about 60% of them so i can't change some of these things in BIOS even if i wanted to. I know that this is for M2N32-SLI which is a more advanced mobo than mine, but it is still the same chipset. I need some help here, what exactly do i need to do in BIOS?. Can i just simply change the timings to Cas 4 and the voltage to 2.1 and be done with it? I'm hoping to hear from a Corsair rep or anyone else who knows about this.
Testing parameters for Twinx/XMS2-6400C4:
Twin2x2048-6400C4 Data Sheet
Motherboard make and model: Asus P5WD2 or M2N32-SLI Premium/Deluxe
Each pair is tested and packaged together using the following settings:
AI Over Clock Tuner: Manual
CPU External Frequency: Manually set to 200MHz
DDR2 SDRAM Clock: Manually set to 800MHz
PCI Express Freq: Auto
PCI Freq: 33.33
Performance Mode: Standard
DRAM Timing Selectable: Manual
SDRAM CAS Latency: 4T
SDRAM RAS to CAS Delay (tRCD): 4T
SDRAM Row Precharge (tRP): 4T
SDRAM Active to Precharge Delay (tRAS): 12T
SDRAM Write Recovery Time: 5
Write to Precharge Delay: 15 (If it's Listed)
Command Rate: 2T
DDR2 SDRAM Voltage: 2.1
Advanced voltage control
CPU Vcore offset:_Disabled
DDR2 Termination: 0.5x
CPU to NB HT:____1.200V
NB to SB HT:_____AUTO
NB Core/PCI-E:___AUTO
SB Core/PCI-E:___AUTO
SB Standby core:_+1.500V
Output driver control
CKE:______AUTO
CS/ODT:__1.00X
ADD/CMD:_1.00X
MEMCLK:__1.00X
Chipset Core Voltage: Auto
All other settings are motherboard defaults.
Maximum DDR2 recommended VDIMM: 2.1 Volts
I don't really get it, i have to change all these things to have this RAM run properly? First of all my mobo doesn't even have all these settings, i only got about 60% of them so i can't change some of these things in BIOS even if i wanted to. I know that this is for M2N32-SLI which is a more advanced mobo than mine, but it is still the same chipset. I need some help here, what exactly do i need to do in BIOS?. Can i just simply change the timings to Cas 4 and the voltage to 2.1 and be done with it? I'm hoping to hear from a Corsair rep or anyone else who knows about this.