Hard Locks Return After BIOS Reset & Frequency Set To 1600MHz

[LoneWolf3574]

I've been troubleshooting my computer to try to figure out what the issue is with the hard locks I've been getting about 1-5 times a day over the last couple of months (some days are better than others). No BSOD is given and whatever is on my screen is all I get :(:. After hitting the reset, I am unable to use the keyboard (usb or ps2) when the system recovery screen is shown (I can still get into the BIOS prior to this though). I've reinstalled my OS after doing a clean install of all AMD drivers and I've run MemTest86+ (@ 1600MHz) with zero errors after about 10 hours.

 

I contacted ASUS and reset my BIOS per their recommendation and haven't had an issue until I try bumping the memory frequency back up to 800MHz from 667MHz, I can reactivate all my other settings with no problem except for this. I opened CPU-Z today to do more troubleshooting and found that the Max Bandwidth for each module is registered as PC3-10700H (667MHz) even though the modules are supposed to be 800MHz.

 

I'm not sure I've chosen the right title for this, but it's the best I can think of at the moment. Anyway, any ideas or advice to help at this point would be greatly appreciated. Thank you.

 

Motherboard - ASUS Sabertooth 990FX (Rev. 1)

CPU - AMD Phenom II x6 1100T (base clocks)

Memory - 4x4Gb kit Corsair Vengeance ((CMZ16GX3M4A1600C9B) stable @1333MHz right now)

OS - Windows 7 Pro SP1 x64

[RAM GUY]

All our memory has a SPD of 1333mhz. For AMD systems, since you can't use XMP, you have to manually go into the BIOS and set the timings, frequency, and voltage to match your memory kit.

 

Did you do at least 3 passes in memtest to confirm there is no issue? 10 hours seems a bit low for a 16GB kit. Also, is your CPU at default speeds?