BSOD when motherboard max RAM capacity is reached? Please help

cynical_bug

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Jun 30, 2010
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Ok, first time posting here so I hope I get this right.

Recently upgraded an aging build and have had nothing but problems. Random BSODs, application crashes. I reformatted after the upgrade, Windows 7 Ultimate x64. I first thought it was a graphics driver related issue. Stripped out all graphics drivers and installed "most stable" according to forums. When that didn't work I removed those and just upgraded to latest supported driver. Still get BSODs. According to BlueScreenView the bsods I've gotten are either caused by hal.dll or ntoskrnl.exe. Thought it might be my PSU again from research I did on my own. It made sense to me, random weird stuff happening right after an upgrade and a 5 year old power supply, so I upgraded to 630W.

Last night was playing League of Legends and kept getting game crash after crash...every 5-10 minutes. It finally ended with a system_service_exception. I removed 4GB of RAM from my computer that I suspected were the cause and started it back up. Played for another 2 hours with no problems, or crashes. Thought I had the problem figured out so I ran a memtest86+ to confirm, two sticks at a time and tested in all slots. All sticks have passed.

The only thing that seems to form any kind of pattern is that all the bad things happen when I max out my motherboard's RAM capacity. Which is 8GB.

So why would that be and how can I stop it? (Assuming I'm right about my theory)


Current system configuration is below. Also I have not overclocked anything on my system. Mini dump located at the dropbox link below.

Motherboard: GIGABYTE GA-EP35-DS3L LGA 775 Intel P35 ATX

CPU: Core 2 Quad Q9550 2.83GHz (Yorkfield)

RAM: G.SKILL 8GB (4 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit

Graphics Card: EVGA 01G-P3-1556-KR GeForce GTX 550 Ti (Fermi)

Storage: 4 SATA Hard Drives

Power Supply: Rosewill Green Series RG630-S12 630W Continuous @40°C,80 PLUS BRONZE Certified, Single 12V Rail, Active PFC

Wireless Card: EDIMAX EW-7727In 32bit PCI Wireless Adapter


Minidump file: https://dl.dropboxusercontent.com/u/22082374/020114-22089-01.zip

I greatly appreciate any help that you all provide. Thanks in advance.
 
With the maximum amount of RAM, you probably need to have the Memory Controller Hub (MCH) running at 1.3v or slightly higher up to 1.35v. Turn down the voltage if it is stable until you reach the optimal setting.

MCH OverVoltage Control
Allows you to set the North Bridge voltage.
[Normal] - Supplies the North Bridge voltage as required. (Default)
[+0.1V ~ +0.3V] Increases North Bridge voltage by 0.1V to 0.3V at 0.1V increment.
 

cynical_bug

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Jun 30, 2010
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Ok, I'll try that and see what happens. Thank you for the reply :D

Update: Went 24 hours without bsod. Happened again, always seems to happen while gaming even though I run some pretty heavy 3D animation programs... I've gone ahead and found I didn't have the most up-to-date bios, have since upgraded and loaded optimized defaults.

still gave +0.1 to MCH and also +0.3 to RAM Over-voltage which, according to the voltage readings I'm getting from HWMonitor, puts them inline with manufacturer specs.

Also, I should have mentioned it was a different bsod this time. First one was a SYSTEM_SERVICE_EXCEPTION and this latest one was a IQRL_NOT LESS_OR_EQUAL (I don't know if that's significant...it probably is, I feel a little dumb now.) Latest dump file can be found here: https://dl.dropboxusercontent.com/u/22082374/020414-22651-01.zip
 

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