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Dell Latitude C640 Won't Turn On

Must be a short, but don't see anything obvious. Similar Threads - Dell Latitude C640 Windows 7, Dell Latitude E5520. "No battery is detected" paulrroberts, Oct 9, 2016, in forum: Hardware Replies: 6 Views: 266 OverTallman Oct 28, 2016 Dell Whats wrong with this fellow? Now I can move it all around upside down, sideways, etc., and no freezeup. click site

Thanks a lot for your answer 😀 MISSY XXX Laptop Freak February 4, 2008 | Missy, Here's the service manual for your laptop. If you would like to contact me directly regarding any outstanding issues, I will be happy to assist in any way possible. Ubuntu Logo, Ubuntu and Canonical © Canonical Ltd. I put this on my DELL and it works fine. http://www.techspot.com/community/topics/dell-latitude-c640-wont-turn-on.208309/

In this case probably you have failed Graphics Card, try to repair graphic card with heat gun or replace it. (How to repair laptop graphic card) Some electronics components on the SM July 8, 2008 | I use my C640 Dell laptop to try cloths - while i am using it. It's possible that you have a problem with the inverter board. Does anyone know how to get the motherboard to run without LCD and external display?

They sort of work their way to not working, starts cutting off at random more and more often until it won't work at all. Jay July 16, 2007 | I have a Latitude C640 it shut off right at booting. Related Resources Latitude d600 wont turn on help Latitude D600 won\'t turn on Latitude D600 Wont turn on My dell latitude d600 wont turn on Dell latitude d600 laptop wont turn Test the continuity and Voltage with a voltmeter and check electronics components temperature with your finger.

The processor, heatsink, thermal grease, and fan need to be replaced. An alternative means of getting to the diagnostics is to hold down the blue (purple?) key (lower right of the keyboard) as the system boots up. and every time i power on - it asks me to go to setup with a message that setup is wrong. http://en.community.dell.com/support-forums/laptop/f/3518/t/18595446 Test the laptop with an external monitor connected to the VGA or HDMI port, if the external monitor works fine.

So I know the problem has to be the board, I tried my friends power cable thinking maybe it's the power cable ect (the one you plug into the outlet to Re: Dell laptop won't turn on.... I want to know what do I need to do to fix the laptop??? No power up with a full charged battery and if I plug in the power adaptor the led in the power adaptor goes out.

Each one has had it's power supply replaced. https://ubuntuforums.org/showthread.php?t=883265 Looking this up it is a very low current device @1ua. No, create an account now. I still cannot get the laptop to run or charge on AC.

Try reseating the memory. get redirected here If the laptop is a few years old, it’s possible that thermal grease dried out and has to be reapplied. I was able to get the system to boot by attaching an external monitor to the VGA port in the back. Can you confirm it is a power switch versus a whole motherboard?

I hope this helps others. when it starts to boot hold the function key (fn) at the bottom left of the keys beside the lett alt key and press the down arrow a couple times. (fn+down Already I had only one slot working as the other does not recognise any ram that I put in it. navigate to this website Charge light stays on for about 5 seconds.

mine works perfect when only one stick is in, they are 2 matching 512mb that worked fine before now. This forum solved the problem and I appreciate the time saving advice. Dell Latitude C640 won't boot - blinking caps lock LED Discussion in 'Hardware' started by jeffbrig, Oct 29, 2006.

Is it circuit on the mb bad?

A lot of times they are floating around somewhere underneath the cover. Let me know if this was useful Richard Do you think I should try this??? I don't think it's the cord like I said new and the lights wouldn't come on until I plugged it in. jeffbrig, Oct 29, 2006 #3 borislanger Joined: Jul 24, 2007 Messages: 1 I had the same behavior on a Dell D630 laptop.

If the laptop boots fine and doesn’t shutdown, then something is wrong with the hard drive or with the operating system on it. Motherboard failure. This also could be related to the keyboard controller failure, witch means you'll have to replace the whole motherboard, but it's not a common failure. http://mffonline.com/dell-latitude/dell-latitude-cpi-d300xt-refuses-to-turn-on.php In this case you can try cleaning and reseating memory modules to make sure they are making good contact with the slot.

If I push the battery in a lil it turns back on. SprÄk: Svenska InnehÄllsplats: Sverige BegrÀnsat lÀge: Av Historik HjÀlp LÀser in ... You can run Memtest 86+ and see if the memory fails the test. I said to myself that is weird, so I put the heat sink back.

You can try removing memory modules one by one and test the laptop with only one module installed. The laptop appears to be completely dead. Test the Voltage and Continuity with a Voltmeter and check electronics components temperature with your finger. This could mean that the problem (in this case) is a faulty welding or something similar.