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Gigabyte GA-X38-DQ6 Voltage


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(sorry for my terrible english....)


I got the Phoenix Bios @ GB GA-X38-DQ6

I got 2x TWIN2X2048-6400C5DHX

I got Windows Vista (32bit)

... Intel Core2 Duo 6750 2,66GHz

... Saphire Radeon 2900XT HD


Day 1:

put rams into the pc @ slot 0 + 1 (yellow and red)

all was perfectly working


Day 2:

The game Hellgate:London crashes and i got a bluescreen with MEMORY .... failure.

The PC reboots automatically.

I^ve checkes the temperatures. MB@30°C (very low) CPU@42° (very low)

Startet Mozilla Firefox. and Windows told me that must be closed

Startet other Apps and after 2 sec of starting --> closed

Startet Hellgate (need much memory) - bluescreen! - rebooting

and so on.


Day 3:

Bring the 2GB Ram to the shop back - he testet it: 1 bank down (failure)

He give me a new twinpack and i buyed 2GB more (4x 1GB)

At home i put it in the PC and startet windows...

all looks good...but...i startet hellgate london: windows error. programm must shut down.

ok...i reinstalled it.

next try... the same!

-become gray hairs!-

using memtest + 1.7.....


Day 4:

no errors reportet

tryed +0.05 more voltage on rams (1.85V) - the same errors

tryed +0.1

tryed +0.15

tryed +0.2


nothing changes...

tryed every ram alone in the pc

hellgate want start! wtf?!


i think the board is ok. changing back to SPT with 4GB but there are some errors again ;((


Please check these stuff and tell me the best bios configurations. testet 2gb ram from a friend and it works. whats wrong?!

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Download this FIX if you run VISTA:




The on motherboard memory controller can not keep up with the extra DRAM at the rated 6400 speed. You will need to drop the speed of the DRAM from 800Mhz to 667Mhz. If you had purchased 4 X 1024MB of PC8500 (1066Mhz) DRAM, then you would have had to drop to PC6400 (800MHz) DRAM, etc. 2 X 2048 will not issue this problem. This is a problem of all 4 banks being populated and the Northbridge memory controller not having the time to load and access the (now doubled) DRAM banks.


Download Memtest from http://www.memtest.org and extract the ISO image. Burn the ISO image to an CD ROM Disk.


Insert two sticks of DRAM. Enter your BIOS. On the main BIOS screen press Ctrl + F1. You will see the screen flicker. Next select the MB Intelligent Tweaker option. On that screen you will see many additional settings that were not there before.


MIB Intelligent Tweaker (M.I.T.)


CPU Clock Ratio = 10

CPU Host Clock Control = Disabled

PCI Express Frequency = 100Mhz

C.I.A.2 = Disabled

System Memory Multiplier = 2.5

DRAM Timing Selectable = Manual

CAS Latency Time = 5

DRAM RAS# to CAS# Delay = 5

RAS# Precharge = 5

Precharge Delay (tRAS) = 15

ACT to ACT delay = Auto

Bank Write To READ Delay = Auto

Refresh to ACT Delay = 0

Read to Precharge Delay = Auto

Memory Performance Enhance = Normal

Dimm OverVoltage Control = +.3V

PCI-e OverVoltage Control = Normal

(G)MCH OverVoltage Control = +.02

CPU Voltage Control = Auto

Robust Graphics Booster = Auto

Boot to the optical drive with the memtest disk and allow for two full passes.



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