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TWIN2X4096-8500C5D on Maximus II problem


shomei

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Hi,

I have just built my new rig, it booted up no prob. I've installed Vista 64bit, did all the updates, updated the bios to the latest version, restarted, applied all the os updates and this morning the computer did not boot (mentioning memory problem). I forgot to mention that all the settings were left to auto (that's 800MHz 4-4-4-12 and 1.9v). I removed the one stick and tried to boot and it booted ok. Then I raised the ddr volt to 2.1v, installed the second stick and again no boot. I tried booting with either of the two memory sticks and it boots fine. The problem is when I try to boot with both of them in dual channel mode, although in the beginning it was booting just fine.

 

Any ideas?

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Dual Channel Mode is a function of the on motherboard memory controller (Intel) and not the DRAM.

I know.

Try inserting the sticks in slot 2 and 4. I would look to RMA of the mainboard though. Have you run Memtest on each stick singularly?

Tried that already, no success, the same with slots 1 and 3.

I am at work now so I cannot run Memtest at the moment. I will do so as soon I return home and tell you the results.

 

I'll also try raising the northbridge volt a bit and maybe downgrading the bios...

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RMA of the mainboard is the path I would personally choose. Don't hold onto that board for too long. If you can get it back to your reseller, my advice is to do it now.

 

These are the BIOS settings for your board that should allow for a clean boot with your DRAM. I added a bit of a Northbridge raise as well.

Extreme Tweaker

Ai Overclock Tuner : Manual
Ratio CMOS Setting : 8
FSB Strap to North Bridge : 333
FSB Frequency : 333
PCI-E Frequency: 100

DRAM Frequency: DDR2-1066
DRAM Command Rate : 2T
DRAM Timing Control: Manual
CAS# Latency : 5
RAS# to CAS# Delay : 5
RAS# Precharge : 5
RAS# ActivateTime : 15
RAS# to RAS# Delay : Auto
Row Refresh Cycle Time : Auto
Write Recovery Time : Auto
Read to Precharge Time : Auto

Read to Write Delay (S/D) : Auto
Write to Read Delay (S) : Auto
Write to Read Delay (D) : Auto
Read to Read Delay (S) : Auto
Read to Read Delay (D) : Auto
Write to Write Delay (S) : Auto
Write to Write Delay (D) : Auto

Write to PRE Delay: Auto
Read to PRE Delay: Auto
PRE to PRE Delay: Auto
ALL PRE to ACT Delay: Auto
ALL PRE to REF Delay: Auto

DRAM Static Read Control: Auto
Ai Clock Twister : Auto
Transaction Booster : Auto

CPU Voltage : Auto
CPU PLL Voltage : Auto
North Bridge Voltage : 1.40v
DRAM Voltage : 2.1v
FSB Termination Voltage : Auto
South Bridge Voltage : Auto
Loadline Calibration : Auto
CPU GTL Reference : Auto
North Bridge GTL Reference : Auto

DDR2 Controller REF Voltage : Auto
SB 1.5V Voltage : Auto

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RMA of the mainboard is the path I would personally choose. Don't hold onto that board for too long. If you can get it back to your reseller, my advice is to do it now.

 

These are the BIOS settings for your board that should allow for a clean boot with your DRAM. I added a bit of a Northbridge raise as well.

 

Thank you for the advice! I'll try those settings in the afternoon and if it still doesn't boot I'll send it back to the reseller as soon as tomorrow.

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Just came home and put the bios settings you told me with the one stick installed, saved, shut down, put the other stick and tried to boot but with no luck!

 

After that I decided to try booting with either one of the sticks and found out that it only boots with one of the two sticks! It boots in each of the 4 slots and the second one boots in neither. I guess then that the second stick is faulty, or has it been fried by the motherboard?

 

So what's the case, faulty ram or faulty motherboard?

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