Once every few days I get a freeze followed by a restart of the system. This is random and cannot point it to a single proccess or driver. Eventviewer shows me a critical event: A fatal hardware error has occured. AMD northbridge error Bugcheck 0x00000124 WHEA ntoskrnl.exe 52a489 I Googled this error and found that it could be anything. Hardware related Software related Driver related So did a clean install of: Windows 7 Ultimate x64 Windows 8 Enterprise N x64 Windows Server 2012 Booting a damn small Linux distribution ( restarts with no explanation ) The freeze and restart happened with all OS. What I did: Update BIOS to v2401 Check BIOS settings (all auto) * Played with voltages (memory and northbridge) Memory check Update drivers Replace harddrive Check for blown capasitors Check for dust * sfc /scannow (it suddenly finds uncorrectable corruptions) Reapplied thermal paste * New PSU * New memory * Uninstalled videodrivers one by one (nvidia) Specs: ASUS M4A77T AMD Athlon II X2 250 Corsiar VS2GB1333D4 x2 =4096 MBytes @ 9 9 9 24 Club 3D Geforce 8500GT silent HKC Power Supply SZ430PDR PSU 430W Watts calculater states 334W needed Really can use some help on this one
also try no videocard nvidia.. plain onboard ? and check memory timings in bios to be correct.. not slower
Board has no onboard video Timings are default @ 9 9 9 24 1.5V Played with the voltage a bit, but nothing helps
Must get one to test On another system with this PSU all is well, but second system has 250 Watts so I cannot swap On another forum this issue has been discussed, the man tested with 3 PSU and still has the same error
had a friend with similar issues in msi board same chipset.. he switched to 7 x86 (32 bit) it worked. but he booted linuxmint in usb and no problems.. in your case.. uhh damsmall might not have proper support for amd northbridge. or there is an isue with hardware. psu or ram usualy.. try 1 ram stick at time ?
Tried everything with RAM, must be ok PSU can be the problem, cannot change it now but as soon as possible
**Update** On Monday 26th disassembled the computer. I noticed the thermal paste between processor and cooler was minimal. Cleaned everything and reapplied normal amount of paste. Assembled computer again and works fine till today.
My advice same as previous. Have you got a spare PSU. If not see if you can borrow one. I think your PSU is failing
The PSU is stable in another system. All was well for 6 days, doing everything I normal do. Got a message from ASUS forum "This is usually a problem with the BIOS and its memory training routines... the restart is a reboot that gets memory properly configured.. Corsair never qualified any memory on an M4A77T board... so apparently from time to time, the BIOS can't get the memory properly initialized... " So maybe need another PSU and memory to be certain.
Ok, I'm done. Twice the reboot today. I just ordered: Seasonic M12II 520W Kingston HX blu 8GB(2x4GB) DDR3 1333MHz CL9
Please comeback and let us no how you get on when you get delivery. I am still pretty sure its the PSU so try that first.
Okay, I'm back. Today recieved PSU and memory. First installed PSU and after 1st boot 1st browser session, reboot. Then installed new memory, reboot. Now I'm looking for other solutions. I will stay tuned.
Had the most weird experience. Wanted a clean "vanilla" install of Windows 8 Pro VL. "Network cable unplugged" after install, this happened 3x. Maybe motherboard is the problem. Already bought new PSU and memory, so a sabertooth Z77 with a i7 2600K for Christmas must give me a stable system! Thanx all, and beautifull wishes to everyone
Looks like a northbridge issue. The motherboard may be undervolting the CPU-NB. Increase CPU-NB voltage in the BIOS and try again.
I allready played with the voltages, for memory and northbridge. Little steps to see if that worked, nothing worked. Before I posted this thread I was allready 2 months figuring out what could be the problem. Google only gave me 2 identical problems with ntoskrnl.exe 52a489, and no solutions.