maurosc3ner

Hi

I have ASUS P6T7 WS with BIOS Version 0811. I have installed 4x2 = 8GB ram from G.Skill Ripjaws series (DDR3 1600 - F3-12800CL9D-4GBRL) + CPU I7 980X.

I am running Windows 7 64bit. When I installed the ram, bios only sees 4GB, and also I have two kits more from the same brand (16GB more= 24GB of Total memory)

I dont know why the motherboard just detect the half of memory

BR
Esteban

GenAn

See this thread: Asus X58 + 6/12GB memory overclocking - detecting less memory than installed

eva2000

hi Esteban and welcome

Yes as GenAn posted info at http://i4memory.com/ramdetect still applies

I'd start by posting your bios settings tried and used using format of a bios template - P6T6 WS Rev bios template should be close to yours Asus P6T6 WS Revolution Bios Template

Haven't tried 4GB density modules in 2x4GB yet, so no sure of their performance characteristics, but i assume you need to play with QPI/DRAM (cpu vtt) and VDIMM voltages as per outlined at http://i4memory.com/ramdetect and Intel Core i7 920 Overclocking Introduction Guide on X58. Since you use i7 980X gulftown cpu, uncore and mem frequency ratio has changed to min 1.5x times, so you can also tweak that and the relevant QPI/DRAM (cpu vtt) voltage required as per info outlined at http://i4memory.com/f55/intel-core-i...-ratios-23430/

maurosc3ner

hi eva2000

I have read it the links below about the correct ratio for memory uncore, etc.
This is my template bios actually:

Asus P6T7 WS Revolution
0811 Bios Template

****************************
AI Tweaker
****************************
AI Overclock Tuner: Manual
CPU Ratio Setting: 26
BCLK Frequency: 133
PCIE Frequency: 100
DRAM Frequency: DDR3-1600Mhz
UCLK Frequency: 2666Mhz -> 1.66X
QPI Link Data Rate: AUTO

*******************
DRAM Timing Control
*******************
DRAM CAS Latency: 9 DRAM Clock
DRAM RAS# to CAS# Delay : 9 DRAM Clock
DRAM RAS# PRE Time: 9 DRAM Clock
DRAM RAS# ACT Time: 24 DRAM Clock
DRAM RAS# to RAS# Delay: AUTO
DRAM REF Cycle Time: AUTO
DRAM WRITE Recovery Time: AUTO
DRAM READ to PRE Time: AUTO
DRAM FOUR ACT WIN Time: AUTO
DRAM Back-To-Back CAS# Delay: AUTO

DRAM Timing Mode: AUTO
DRAM Round Trip Latency on CHA: AUTO
DRAM Round Trip Latency on CHB: AUTO
DRAM Round Trip Latency on CHC: AUTO

DRAM WRITE To READ Delay(DD): AUTO
DRAM WRITE To READ Delay(DR): AUTO
DRAM WRITE To READ Delay(SR): AUTO
DRAM READ To WRITE Delay (DD): AUTO
DRAM READ To WRITE Delay (DR): AUTO
DRAM READ To WRITE Delay (SR): AUTO
DRAM READ To READ Delay(DD): AUTO
DRAM READ To READ Delay(DR): AUTO
DRAM READ To READ Delay(SR): AUTO
DRAM WRITE To WRITE Delay(DD): AUTO
DRAM WRITE To WRITE Delay(DR): AUTO
DRAM WRITE To WRITE Delay(SR): AUTO

****************************
CPU Voltage: AUTO
CPU PLL Voltage: AUTO
QPI/DRAM Core Voltage: 1.30
IOH Voltage: AUTO
IOH PCIE Voltage: AUTO
ICH Voltage: AUTO
ICH PCIE Voltage: AUTO
DRAM Bus Voltage: 1.60
DRAM DATA REF Voltage on CHA: AUTO
DRAM CTRL REF Voltage on CHA: AUTO
DRAM DATA REF Voltage on CHB: AUTO
DRAM CTRL REF Voltage on CHB: AUTO
DRAM DATA REF Voltage on CHC: AUTO
DRAM CTRL REF Voltage on CHC: AUTO
****************************
Load-Line Calibration: AUTO
CPU Differential Amplitude: AUTO
CPU Clock Skew: AUTO
CPU Spread Spectrum: Disabled
IOH Clock Skew: AUTO
PCIE Spread Spectrum: Disabled

CPU Advance Settings
C1E Support: Disabled
Hardware Prefetcher: Enabled
Adjacent Cache Line Prefetcher: Enabled
Intel (R) Virtualization Tech: Disabled
CPU TM Function: Disabled
Execute Disable Bit: Disabled
Intel (R) HT Technology: Enabled
Active Processor Cores: ALL
A20M: Disabled
Intel (R) C-State Tech: Disabled
****************************
Express Gate: Disabled

Finally, I just want to detect all memory, I dont want to oc the cpu, but If Ineed to tune vcore to detect the memory, I would like to know a good ratio between BCLK, UCLK MEMORY etc

thanks in advance for your response

BR
Esteban

Have someone tried 4GB density modules over this board???

Falcon_CMH

Are you using the right slots? Use all the blue slots first (for 3 sticks) then 1 black slot.

eva2000

i'd say some of those voltages marked in bold to manually set lowest option value

CPU PLL Voltage: 1.8
QPI/DRAM Core Voltage: 1.30 try up to 1.4v in 0.02v increments
IOH Voltage: 1.1
IOH PCIE Voltage: 1.5
ICH Voltage: 1.1
ICH PCIE Voltage: 1.50
DRAM Bus Voltage: 1.66

also try CPU Differential Amplitude: between 900 and 1000mv