Furmark is a software test that tests hardware - it's only as good as the sensors/equipment that it works with.
The point here being that I haven't seen any great advances in video card testing over the last few years, but I have seen all sorts of new stuff added to video cards.
As such I have to wonder if these new additions to video cards are able to respond to tests - and if Furmark has developed new tests in order to help stress test the newer cards.
IMO the only sure test of a hardware problem with a video card is to try another video card.
Finally, I am not a hardware expert. If you'd like to discuss this further, I'd suggest posting over in the Internal Hardware forums for some more expert advice: http://www.bleepingcomputer.com/forums/f/7/internal-hardware/
IMO there are no 100% effective tests for any components. We use the tests to help us decide if it's worth replacing the part that we suspect is bad.
For example, there's a lot of different PSU tests and ways to test them - but, in short, if the PSU fails under load, there's no reasonable way to test one under load except by replacing it with a new one. I hear that there are testers for this, but they cost thousands of dollars (US).
Here's some PSU test suggestions:
- PSU Testing
- and this program has a PSU test built in: http://www.ocbase.com/
As for motherboards, there's a lot of tests out there that claim to test you motherboard - but none of them are anywhere near 100% effective. Quite frankly, the motherboard manufacturers' don't make enough money over a board with a 3 year (or less) lifespan to develop a test for that board. It's cheaper/easier for them to just replace the one's that get returned to them. Most of them will ask that you do a clean install of Windows to help rule out software issues - but that's about the extent of the testing.
The only way I test motherboards is to:
1) clean install of Windows
2) rule out all of the other hardware (if possible), and then
3) try another motherboard
Next, let's talk about SSD's. There are no tests for SSD's. You can take SMART readings, but they are wrong more often than they are right.
So, then the only ways to test an SSD are:
- try it in another system and see if the problem remains, or
- try another drive in that system (with a clean install of Windows) to see if that fixes the problem
Lastly, let's talk options here:
- replacing a video card or a PSU is fairly simple
- replacing a motherboard is more difficult and more expensive
If you purchase the parts from a shop that will let you return them for your money back, you'll be able to quickly test a video card (more quickly than a PSU).
But at some point (if it's a hardware issue) you're going to have to decide how to spend your money. I can make suggestions, but I'm not sitting in front of your computer and there's a thousand things that could make a difference.
If you want surety, take the system to a shop and have them diagnose and repair it. They'll warrant their work, and they won't charge you for testing other pieces of equipment (we have tester PSU's in my shop just for this purpose).
So, your options here are:
- to clean install Windows to see if it's hardware or not, or
- to run the different diagnostics to see what comes up. What I suggest is first running all of these tests: http://www.carrona.org/hwdiag.html
Then, if all the tests pass, then you do this procedure to help locate the broken device: http://www.carrona.org/strpdown.html
This is designed for desktop systems - as laptops have most of the components on the motherboard (so you can't test them individually).
- to take it to a shop and have them diagnose/repair it.