My issue here is an unusual one. (Here is the short version):
- I have two (nearly) identical machines that have been running just fine.
- I purchased two video cards (Radeon R7 370) and both PCs started freezing when playing games (and occasionally after some time running Furmark.)
- Local technicians initially thought the cards were bust and replaced them, then said the PSUs were weak (was running 600W and 620W at the time).
- I purchased two identical 735W PSUs and swapped them for my old ones, but the issue still persists.
- EDIT: Local technicians also updated BIOS on both PCs
- Games can typically play for an hour or two and then randomly freeze the system. There are no minidumps and event manager shows pitifully little.
- Both computers are very similar (same RAM, same GPU, same PSU, same CPU, comparable motherboards, more or less same windows 7 configuration, same graphics drivers etc) and the issue is the same with both of them
The freeze itself manifests itself usually as a black screen with grey lines (occasionally with colors of the visuals that were displayed at the time of the freeze) and the sound stops shortly after.
So to sum it up: I got new video cards and new PSUs, the computers function just fine at Windows 7 (can write articles, browse, watch videos, listen to music etc), but may freeze the system while playing games. One of the two machines was tested for several hours on Furmark without ever crashing, but crashed in a game after less than an hour.
What I tried so far (with no apparent success):
- I replaced one of the new cards (to ensure it wasn't just a faulty card)
- Replaced PSUs with stronger ones
- Repeatedly removed display drivers with DDU and tried all sorts of combinations/versions from AMDs recommended drivers
- Removed/stopped several processes and unwanted programs
- Needless to say, I am not overclocking anything not fiddled with any fan speeds, voltage settings etc etc.
Both computers have been serviced (one of them repeatedly) by professional technicians. Their final opinion was that the Motherboard of one of my machines may be faulty (though the other machine had the same freezing issue again just a day later) or that my PC might need a format and a clean windows installation.
Since both PCs are so similar and the issue seems identical (random freezes while gaming or Furmark testing, which may happen in a few minutes but can also take a few hours to manifest) I think that the freezes might share the same root cause.
Can you please help me? (I will be most grateful and have ways to show it.)
I will follow any and all instructions you give me.
Thank you in advance!
Edited by EndlessJourney, 17 January 2016 - 04:36 PM.