My sister sent me her laptop to fix. Sony Vaio SVP1321M9EB. I don't do laptops, hate them, they should all be destroyed.
It's going in to thermal shutdown at 60 degrees C but I'm struggling to think of a common sense reason why it would. It's not a Windows problem because it happens when I'm not in Windows. It does it when in the bios or USB diagnostic programs. There's nothing in the bios related to this happening. I know it's shutting down at 60 because I put my 21 inch desk fan on it then slowly moved it away until the laptop shutdown at 60 every time.
There was a problem with the fan which, according to the Sony forums, happens with this model frequently and Sony did free repairs. They didn't do one on this and it's galaxies outside the warranty. Her boyfriend tried putting in a new fan and that's all I know. They don't communicate well.
I've taken it apart and the new fan is not spinning, ever. Either the new fan is broken or it's a motherboard issue. Given the machine is going in to thermal shutdown at the low of 60, I was wondering if anyone had heard of this being a hardware trigger? Could it be the motherboard detects the fan is not trying to spin so shuts down at this very low temperature?
I've not encountered this on any of the desktops I've ever built or worked on, but given laptops are designed for profit it seems plausible. Although pointless, I did reseat the CPU. It still shutdown at 60, so that was a waste of common sense and thermal paste. My ideas are:
- I can't see anything on the heatsink which would cause this, it's still registering temps correctly and is seated properly
I've read about people taking these to Sony who seemed to replace the motherboard as a fix. That's very much an Apple bad business solution; charge the customer an insane amount for a quick fix instead of taking the time to diagnose it. At this point it would be better to part it out than risk a motherboard replacement which may not fix it (if I can find one cheap enough).
It's going in to thermal shutdown at 60 degrees C but I'm struggling to think of a common sense reason why it would. It's not a Windows problem because it happens when I'm not in Windows. It does it when in the bios or USB diagnostic programs. There's nothing in the bios related to this happening. I know it's shutting down at 60 because I put my 21 inch desk fan on it then slowly moved it away until the laptop shutdown at 60 every time.
There was a problem with the fan which, according to the Sony forums, happens with this model frequently and Sony did free repairs. They didn't do one on this and it's galaxies outside the warranty. Her boyfriend tried putting in a new fan and that's all I know. They don't communicate well.
I've taken it apart and the new fan is not spinning, ever. Either the new fan is broken or it's a motherboard issue. Given the machine is going in to thermal shutdown at the low of 60, I was wondering if anyone had heard of this being a hardware trigger? Could it be the motherboard detects the fan is not trying to spin so shuts down at this very low temperature?
I've not encountered this on any of the desktops I've ever built or worked on, but given laptops are designed for profit it seems plausible. Although pointless, I did reseat the CPU. It still shutdown at 60, so that was a waste of common sense and thermal paste. My ideas are:
- Motherboard damage?
- A bios setting I've missed?
- Will Sony hardware safety shut down at 60 if it detects no fan, so it needs one?
- I can't see anything on the heatsink which would cause this, it's still registering temps correctly and is seated properly
I've read about people taking these to Sony who seemed to replace the motherboard as a fix. That's very much an Apple bad business solution; charge the customer an insane amount for a quick fix instead of taking the time to diagnose it. At this point it would be better to part it out than risk a motherboard replacement which may not fix it (if I can find one cheap enough).