Jump to content
Corsair Community

TWIN2X4096-8500C5DF problems on my Gigabyte GA-EP45-UD3P


neithcat

Recommended Posts

Hey guys. I'm having trouble setting up my 2x2 gb Dominator 8500 ram. It doesn't seem to want to run at 2.1 volts or higher. At 2.1 it will often fail stress tests, and at 2.2 windows won't load. So I am running them at 2.0 volts and at 1032 instead of 1066 as my bus speed:ram divider won't give me 1066, and if I set it to 1076 it crashes. Timings are manually set to 5-5-5-15. Bus speed is 430 x 10.

 

I would be happier if the ram could handle 2.1-2.2 like on the spec sheet, and if I could overclock it by a few mhz rather than underclock to achieve stability.

 

I haven't changed any other ram settings/voltages other than the main voltage and the divider for bus:ram speed ratio.

 

Let me know if I should take some pictures of my bios and post them here if that would help.

Link to comment
Share on other sites

  • Corsair Employees

Just for testing, try dropping your CPU multiplier to 7 or 8 and test again for stability. Also, have you added any voltage to your memory controller?

 

Please list ALL settings you have made in the BIOS for voltages, RAM, and CPU.

Link to comment
Share on other sites

here are my bios settings

 

MB Intelligent Tweaker(M.I.T.)

 

Robust Graphics Booster ...............: Auto

 

CPU Clock Ratio ..........................:10 x

 

Fine CPU Clock Ratio.....................:.0

 

CPU Frequency ...........................:4.3GHz (430 x 10)

 

 

 

 

 

Clock Chip Control

 

Standard Clock Control

 

CPU Host Clock Control..................: [Enabled]

 

CPU Host Frequency (Mhz) ............:430 Mhz

 

PCI Express Frequency (Mhz) .........: [Auto]

 

 

 

C.I.A.2 .................................:[Disabled]

 

 

 

 

 

Advanced Clock Control [Press Enter]

 

CPU Clock Drive...........................: 700mV

 

PCI Express Clock Drive.................: 700mV

 

CPU Clock Skew (ps)....................: 0ps

 

MCH Clock Skew (ps)...................: 0ps

 

 

 

 

 

DRAM Performance Control

 

Performance Enhance...................: [sTANDARD]

 

Extreme Memory Profile (X.M.P.).....: [Auto]

 

(G)MCH Frequency Latch...............: [Auto]

 

System Memory Multiplier ..............: 2.40B

 

Memory Frequency (Mhz) ..............: 1032

 

DRAM Timing Selectable ................: [Manual]

 

 

 

Standard Timing Control

 

CAS Latency Time........................ 5

 

tRCD ......................................... 5

 

tRP'........................................... 5

 

tRAS.......................................... 15

 

 

 

Advanced Timing Control

 

tRRD........................................... 4 [Auto]

 

tWTR.......................................... 4 [Auto]

 

tWR............................................ 8 [Auto]

 

tRFC........................................... 68 [Auto]

 

tRTP........................................... 4 [Auto]

 

Command Rate (CMD) ....................: 0 [Auto]

 

 

 

Driving Strength Profiles

 

Driving Strength ............................

 

 

 

Channel A

 

Static tRead Value.........................: 8 [Auto]

 

tRD Phase0 Adjustment...................: 0[Auto]

 

tRD Phase1 Adjustment...................: 0 [Auto]

 

tRD Phase2 Adjustment .................: 0 [Auto]

 

tRD Phase3 Adjustment..................: 0 [Auto]

 

Trd2rd(Different Rank)....................: 8 [Auto]

 

Twr2wr(Different Rank)...................: 8 [Auto]

 

Twr2rd(Different Rank)...................: 7 [Auto]

 

Trd2wr(Same/Diff Rank)..................: 9 [Auto]

 

Dimm1 Clock Skew Control...............:[Auto]

 

Dimm2 Clock Skew Control...............:[Auto]

 

 

 

Channel B

 

Static tRead Value.........................: 8 [Auto]

 

tRD Phase0 Adjustment...................: 1 [Auto]

 

tRD Phase1 Adjustment...................: 0 [Auto]

 

tRD Phase2 Adjustment .................: 0 [Auto]

 

tRD Phase3 Adjustment..................: 0 [Auto]

 

Trd2rd(Different Rank)....................: 8 [Auto]

 

Twr2wr(Different Rank)...................: 8 [Auto]

 

Twr2rd(Different Rank)...................: 7 [Auto]

 

Trd2wr(Same/Diff Rank)..................: 9 [Auto]

 

Dimm1 Clock Skew Control...............:[Auto]

 

Dimm2 Clock Skew Control...............:[Auto]

 

 

 

Motherboard Voltage Control

 

Voltage Type.………... Manual

 

CPU

 

CPU Vcore ............1.21250V*.....: 1.3V

 

CPU Termination…..... 1.200V*.......: [Auto]

 

CPU PLL...............1.500V*.......: [Auto]

 

 

 

CPU Reference.........0.760V*.......: [Auto]

 

 

 

MCH/ICH

 

MCH Core..........1.100V...........: [Auto]

 

MCH Reference.....0.760V...........; [Auto]

 

MCH/DRAM Ref.......0.900V...........: [Auto]

 

ICH I/O...........1.500V............: [Auto]

 

ICH Core..........1.100V............: [Auto]

 

 

 

DRAM

 

DRAM Voltage ......1.800V............: 2.000V

 

DRAM Termination ..0.900V............: [Auto]

 

Channel A Reference 0.900V............: [Auto]

 

Channel B Reference 0.900V............: [Auto]

 

 

 

Advanced Settings

 

Limit CPUID Max. to 3.....................: [Disabled]

 

No-Execute Memory Protect............: [Enabled]

 

CPU Enhanced Halt (C1E)................: [Disabled]

 

C2/C2E State Support....................: [Disabled]

 

x C4/C4E State Support..................: [Disabled]

 

CPU Thermal Monitor 2(TM2) ...........: [Enabled]

 

CPU EIST Function.........................: [Disabled]

 

Virtualization Technology................: [Disabled]

Link to comment
Share on other sites

Download Memtest86+ V2.10 from--->

and extract the ISO image. Burn the ISO image to an CD-ROM disk.

I wonder if you need to raise the MCH Voltage. First you need to check the DRAM. Remove the overclock and set the DRAM to 1066Mhz with 5-5-5-15 and 2T at 2.1v. Shut the system down and insert a single DRAM module in Slot 1 (Closest to the CPU). Restart and boot to the Memtest CD. Allow for two full passes. Shut the system down, remove the DRAM module and replace it with the other module. Boot to the Memtest CD and allow for two full passes. Finally, insert a module in Slot 1 and Slot 3 and retest.

 

Results?

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

×
×
  • Create New...