Dropped my Dell Inspiron 15 7559 and it caused performance issues
Dell Inspiron 15 7559 running Windows 10 Pro 64-bit
This happened a few months ago and I'm still using it. I dropped my Dell Inspiron 15 7559 off my lap and onto the floor while I was laying in bed and fell asleep. The left hinge broke and it pulled a small metal plate with screws in it out of whatever it was screwed into. There is also a thin white wire next to the plate that has been severed and I'm not exactly sure what it's for, but I think it may be from the internal WiFi. After I dropped it the wifi strength is at 1 bar unless I'm literally standing right next to the router. I purchased a USB WiFi adapter and disabled the internal one.
Picture of busted hinge and wire: https://ibb.co/1Rjm9G8
Ever since I dropped it my laptop seems to be doing everything a bit slower, and the GPU isn't working well at all. I used to be able to play any game with the graphics settings on Very High with no problems, but since I dropped it I can't play almost any games even at Very Low settings without extremely low FPS, so bad it makes them unplayable. If I try and load cryptocurrency market graphs on a website it freezes/lags quite a bit (I've tried 3 different browsers and cleared the cache, cookies, etc.). League of Legends is unplayable with all of the graphics settings set as low as possible. But I can play Sekiro: Shadows Die Twice with minimal lag/FPS drop... It's weird. It's not a graphics driver issue or an internet issue. All of this started after I dropped it.
Are there any tests that I can run to see exactly what's wrong? I can't remember the name or exactly what it measured, but a few months ago I used some website and it ran some tests and compared my laptop to other people who were using the same machine (it measured several different variables) and I remember that I was in the bottom ~10% in its performance.
I've never really messed with repairing laptops so I have no idea what's wrong or how to fix it. Idk if there is a website that can run some sort of diagnostic test and see what's wrong with it but if anyone has any ideas please let me know.
Thx for your time and help
Posted May 19, 2021, 10:08 PM UTC
I believe you are correct about the white cable. Systems usually have 2 of them, a white and a black. If you open it up you will likely find them both connected to a chip. Disconnect the black, if it's even connected, and swap it with the white one. That will likely get your wifi back. If the white was knocked out, connect the black to main not aux. You may not want to bother if you are ok with the USB one.
As for performance, there are a lot of things that could be going wrong.
First thing, do you have an SSD drive or a regular drive? If you go into the search and type defrag you can open up the optimize drive screen. What does it say for Media Type? Hard Disk Drive or Solid State Drive?
If it's a Hard disk drive you will likely want to replace it. They don't deal with falls and drops very well.
The next thing to check would be your RAM, both video and system.
There is some video benchmark software that can help. 3D Mark or PassMark should do the trick. If you can't even run them then you have a problem.
For system memory, Memtest (memtest86) should do the job. I believe they have a Windows version. You will need to let it run through at least 3 full passes to be sure it's ok. That does not mean it's good, just that it's passing that test. You can be about 90-95% sure it's ok if it passes though.
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You check your RAM with Memtest. Check your video card with 3DMark or PassMark.
Also, double check that it shows all your RAM. If it doesn't a stick may be damaged.
You can check the health of that TB HDD with a little program named HDTune. If it's damaged it could be causing a system wide slowdown. Be sure to run a surface check (long version)
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That's for the HDTune program.