Question:
Experience input needed
Hi guys, and girls
FMEA analysis input page, by Ivan Kovač
I am currently at my post graduation studies and there are a number of subjects where we have to produce an FMEA analysis of the some production line, or a product. It is a very simple procedure if you have all the data. Check here: http://syque.com/quality_tools/tools/TOOLS05.htm or just Google FMEA - you'll find tons of the links.
I am a leader of a small task group of five that has to do it. Our product is a notebook. Our aim is to analyse the overclocked (CPU/GPU) and undervolted notebook and find its weak spots, meaning what components are to consider, and what are the common failures on each of them. If a failure happens, what are the consequences? Each of these three items has some probabilities of happening. So what I need is an input from many people that have some experience in this.
Components are:
Battery and power (cord+power transformer)
HDD (+ temps)
CPU (+ temps)
GPU (+ temps)
Mainboard
System driver issues
I/O (LCD, networking, USB, Firewire, Cardreaders, PCMCIA, Optical drive, keyboard, touchpad)
The questions:
1. What component may fail?
2. When it fails, what was the cause? How likely (1-10) was that the cause?
3. When it failed, and the cause was determined, what is the consequence (effect)? How likely (1-10) will that consequence show up?
That is the main issue with this. I need as much as possible probabilities on some common failures. I have some on my own, and I would like to test it with the experience of the others. They are based on personal experience and I know they will be not objective, but at least we will get some more data. Also if you know any source that may help us with this, I would appreciate the info. Please contact me on ikovac@sail.hr.
This is a friendly ask for help, and please don't misuse it. I hope the results will be interesting, and the final table with sorted risks will be freely available to everyone.
Check http://www.sail.hr/fmea/fmea.asp
Edit:
Check the results pages (median and mean)
Cheers, and thanks in advance,
Ivan
EDIT: July 2006 - Check posts for a new info about the results.
Edit: 11th July 2006. The paper was done, and the marks are excellent! :) Interesting opinions are gathered, and I would thank to all the people that helped. Your info was good, and to our surprise the results were quite good too. As far as I know there are only a few analysis similar to ours and our online database is somehow unique. We will leave results free for everyone.
The paper is in croatian, but I am proud to tell you that the NBR forum is mentioned as the main source of the data and I would particulary thank to Mr. Chazman who helped a lot when the project was young and still in struggle for attention. This forum is a source of the great experience and now I am sure I didn't make a mistake when I started this thread.
Please check the thread for the results.
Thanks again to all of you, and cheers,
Ivan
Answer:
Re: Experience input needed
Looks like a great project to collaborate on - I submitted two instances of mine - BIOS Flash failure, and a Power Surge.
I will have more to add after I gather more data.
Guys, check this out - not hard to do. If you've experienced any component failure in your notebook before, fill it out. ;)
Chaz
Answer:
Re: Experience input needed
Thanks Chaz, I owe you a favor :)
I just woke up (it is a big time difference, and that is why the communication is a bit tricky), and checked the table - yes green fields started to show. I appreciate your and any future inputs.
Remeber guys - if something is there, please feel free to give your opinion, the more numbers we have - the better will be the result. If you need to make a new suggestion, you are welcome to do it.
Dead battery? CPU? Motherboard problems? USB. There are so many things that can go wrong in a notebook, right?
And - another thing - Firefox seems to ignore the hand cursor on the table (I think it is an IE feature), colorcoded components, and green fields for marking the online input. I am working on it, and will make it visible on both browsers.
Cheers,
Ivan
Answer:
Re: Experience input needed
Firefox colours fixed. Notice that colours are just for easier reading the groups, nothing special.
Green fields at the beggining are now visible in FF.
ID numbers got their links, so data can be entered through PDA, for example, without fancy javascript.
Hand cursor is now visible in FF too.
Cleaner look.
Cheers,
Ivan
Answer:
Re: Experience input needed
I have optimized the page code - instead of around 60KB per refresh - it is 45 KB now. As I can see some people did make new inputs, some of them are very interesting. Thanks people. Keep on. :)
Cheers,
Ivan
Answer:
Re: Experience input needed
A new layout for easier reading is done. Help is better now.
Answer:
Re: Experience input needed
Glad to see you're getting input Ivan; I put a blurb for you in the current news bits. Perhaps you'll get a few more hits. ;)
Chaz
Answer:
Re: Experience input needed
Thanks Chaz. Yes the database is filling up.
CHeers,
Ivan
Answer:
Re: Experience input needed
On an IBM Thinkpad A22m, would "Fan Error" on attempting startup be listed as fan problems or cpu problems? Cant decide where to put it for accuracy.
Answer:
Re: Experience input needed
I'd probably label that as a fan problem.