Hi,
WHEA_UNCORRECTABLE_ERROR (124)
A fatal hardware error has occurred. This fatal error displays data from the Windows Hardware Error Architecture (WHEA).
If we run an !errrec on the 2nd parameter of the bug check (address of the WER structure) we get the following:
Code:
===============================================================================
Section 2 : x86/x64 MCA
-------------------------------------------------------------------------------
Descriptor @ ffffe001d27ec7b8
Section @ ffffe001d27ec940
Offset : 664
Length : 264
Flags : 0x00000000
Severity : Fatal
Error : BUSLG_GENERIC_ERR_*_TIMEOUT_ERR (Proc 0 Bank 4)
Status : 0xfe00000000070f0f
Address : 0x00000000fda86d48
Misc. : 0xc00a0fff01000000
This implies that this was very likely not a software issue, but a bus communication issue (CPU, RAM, video card itself, etc).
There is only so much you can do with a bug check like this until it comes down to a faulty processor that will need to be replaced. Start from 1 and work downward:
1. Ensure your temperatures are within standard and nothing's overheating. You can use a program such as Speccy if you'd like to monitor temps -
Speccy - System Information - Free Download
2. Clear your CMOS (or load optimized BIOS defaults) to ensure there's no improper BIOS setting -
How To Clear CMOS (Reset BIOS) [Easy, 10 to 15 Min]
3. Ensure your BIOS is up to date.
4. Software conflicst that can usually cause *124 bug checks are OS to BIOS utilities from manufacturer's like Asus' AI Suite. If you have something like this software-wise, remove it ASAP.
5. Run Memtest for NO less than 8 passes:
Memtest86+:
Download Memtest86+ here:
Memtest86+ - Advanced Memory Diagnostic Tool
Which should I download?
You can either download the pre-compiled .ISO that you would burn to a CD and then boot from the CD, or you can download the auto-installer for the USB key. What this will do is format your USB drive, make it a bootable device, and then install the necessary files. Both do the same job, it's just up to you which you choose, or which you have available (whether it's CD or USB).
Do note that some older generation motherboards do not support USB-based booting, therefore your only option is CD (or Floppy if you really wanted to).
How Memtest works (you don't need to read, it's only for those interested in the specifics):
Memtest uses algorithms (specifically two), namely moving inversion & what is deemed Modulo-X. Essentially, the first algorithm fills the memory with a pattern. Starting at the low address, it checks to see if the pattern was changed (it should not have been), writes the patterns complement, increments the address, and repeats. Starting at the highest address (as opposed to the lowest), it follows the same checklist.
The reason for the second algorithm is due to a few limitations, with the first being that not all adjacent cells are being tested for interaction due to modern chips being 4 to 16 bits wide regarding data storage. With that said, patterns are used to go ahead and ensure that all adjacent cells have at least been written with all possible one and zero combinations.
The second is that caching, buffering and out of order execution will interfere with the moving inversions algorithm. However, the second algorithm used is not affected by this. For starting offsets of 0-20, the algorithm will write every 20th location with a pattern, write all other locations with the patterns complement, repeat the previous one (or more) times, and then check every 20th location for the previously mentioned pattern.
Now that you know how Memtest actually works, it's important to know that the tests it goes through all mean something different. It goes from Test 0 through Test 12, many of which use either one or the other algorithm discussed above, among many other things.
Any other questions, they can most likely be answered by reading this great guide here:
FAQ : please read before posting
6. If all of the above are okay, including Memtest, remove the video card (and its drivers) and replace it with either a secondary video card, or integrated graphics (if available).
7. If all of the above fail, the only left to do is replace your processor as it is faulty.
Regards,
Patrick
