Since last Thursday I have had this issue with a "hardware malfunction" blue screen on a Dell Precision 390 workstation running Windows XP SP3. The user was doing some Autocad Civil 3D drawing edits when this error was initially seen on Thursday afternoon and the system is unable to boot normally since that time. The error reads as follows:
Call your hardware vendor for support
NMI: Parity Check/Memory Parity Error
The system has halted
Now I have done a considerable amount of searching on this and have spent about 6 hours trying to figure this issue out but I am stumped and I am at my breaking point.
The system is running 2GB of Unbuffered ECC memory and I have checked it with Memtest86, the Microsoft Memory Diagnostic tool and also the memory tests included on the Dell Utilities and everything comes out fine. I then took memory from another exactly the same Precision 390 and tried that and still get the same error. I then broke open a 2GB kit of brand new non-ECC compatible memory and put in and still get the same error. I have also tried using different slots on the motherboard but no matter what is tried I just get the same blue screen.
I tested the graphics card memory with an app I found online and it didn't report any problems. I tried swapping the same exact graphics card from the other Precision 390 and get the same error and I tried swapping the hard drive of the other Precision 390 as well and still get the same error. I also ran a full check on the systems hard drive using GRC SpinRite and it comes up with no issues. The full check using the Dell Diagnostics also give me no issues.
There is a BIOS update available but I am unable to install the BIOS update from DOS boot disk because it says there isn't enough memory available. I can boot fine into Safe Mode but I can't install the BIOS update from there either. I have tried removing anything that that was installed recently from Safe Mode but there is nothing recent except Adobe AIR and Flash Player - which I removed and it didn't change anything. The last time any other software was installed was March 24th.
Obviously the system is out of warranty but I really have no idea what else to try. My only thought at this point is something with the memory controller on the motherboard is bad but that wouldn't really make sense because Safe Mode works just fine.
Any ideas are appreciated.