Tuesday, April 5, 2011

The Good, the Bad, and the Capacitors

Clint Eastwood and I have been good friends for a long time now. But by friends I just mean I decide to like his movies despite their critical response. Especially anything made before he started looking over 50, which doesn't cover too much of his acting career honestly. Anyhow, recently I have been working on a few computers to fix them up. The first would be my uncle's.


Abit NF-M2S V 1.0
His computer, once fought with, decided that it no longer wanted to boot past the windows loading screen. My uncle was having one issue or another, reached safe mode, attempted a system restore which then rendered the computer unbootable -- even to safe-mode. An attempt to repair with a windows disk resulted in consistent BSOD's with the error of UNMOUNTABLE_BOOT_VOLUME going into windows and another about INITIALIZATION when trying to get into the windows setup area. After eliminating the video card, hard drive, dvd drive, and power supply, I decided the motherboard was at fault.
I probably could have jumped to that had I been more confident in my analysis of the motherboard in the first place, but skipping steps is always a bad idea in computer troubleshooting. Anyhow, look closely at that picture again. Yes, the close up on the capacitors.
Bulging Caps beside the CPU

Discolored Cap by the PCI Express Slot

Notice the nice little bulge on the tops of some, and the fun discoloration on one of the others? That was our problem. Dead caps == bad data between the CPU and the hard drive. Bad data == corrupted date == no boot. With a new motherboard from Newegg.com (represent.) most of our issues were resolved.
New Motherboard Installed

A chkdsk run on the hard drive inside another working computer brought it back to booting, and after installing the motherboard driver, life returned!

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