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  Caps Lock flashes 10 times in series, no display power 
 
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Ed Lee Aug 27, 2008, 11:33pm EDT Reply - Quote - Report Abuse
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>> Re: Caps Lock flashes 10 times in series, no display power
I am another victim of the c640 Caps Lock flashes 10 times. I inhered the problem from someone how did not want it any more. I tried everything suggested and finally the answer. The memory does not seat right in the notebook. Cleaning the contacts did not work. I finally resolve it by adding constant pressure to the ram chips by using the spongy foam and double-sided sticky tape to the bottom access lid.
Some pics that might help.
http://img527.imageshack.us/img527/2391/img0963jq9.jpg
http://img527.imageshack.us/img527/3066/presentation1bu4.jpg

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Super Sweet Nov 30, 2008, 01:53pm EST Reply - Quote - Report Abuse
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>> Re: Caps Lock flashes 10 times in series, no display power
Wow, what a great thread!! It reads like a novel...first there was chaos and confusion then a foreign champion appears with a solution and peace reigns in the land.
Thanks for all the troubleshooting work which solved the issue on my computer. Over 3 years worth!!

My Dell latatude D800 started acting up when I added an additional memory stick.
It finally ended up in the "caps lock flashes 10 times in series, no display power" mode.

Just as directed, I cut up 8 index cards and placed 8 layers over each memory stick, closed the cover and things have been solid since then, which was two weeks ago.

Great forum and I appreciate all your assistance!!:)

Jared XX Jan 02, 2009, 06:10pm EST Reply - Quote - Report Abuse
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>> Re: Caps Lock flashes 10 times in series, no display power
Thanks dude, taking the RAM out and putting it back in seemed to get it started! I'll post another reply if I see something else that works. Thanks Again

Joel Habighorst Jan 03, 2009, 12:20am EST Reply - Quote - Report Abuse
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>> Re: Caps Lock flashes 10 times in series, no display power
i just wanted to say THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

you guys saved me a freakin fortune!!!!! i tried everything i could and took it took every specialist i knew ....and no one could help me- i have thousands of dollars worth of software wich i thought would be lost not to mention web work and files that would be unreplaceable setting me back years!!!!!!!!!!
the old rubber trick worked great !! thank you!!!!!!!!!!!!!!!!!!!!!
- Joel Habighorst

Jeff Tee Jan 15, 2009, 06:47pm EST Reply - Quote - Report Abuse
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>> Re: Caps Lock flashes 10 times in series, no display power
Have a Dell Latitude D600, Windows locked up, I forced a power down, then powered on. The Caps Lock light flashed 10-times, then the laptop shut down. I had a second D600 and put both units side-by-side and started exchanging parts. CPU, memory, mini-PCI card and so on. I read a post about another D600 owner that removed one of two DIMMs and was successful in starting the laptop. At first I removed only DIMM-B and had no-luck. I installed DIMM-B, removed DIMM-A and was able to start-up successfully with no flashing Caps Lock light. The problem was the socket for DIMM-A. When I left the memory compartment door off, and applied slight pressure on the edge of DIMM-A with my finger, the laptop would start normally. If I removed pressure while the laptop was in POST, the POST would halt. If I allowed the laptop to start Windows before releasing pressure on DIMM-A, Windows would freeze soon after I released pressure on DIMM-A. After hours of swapping parts between the two laptops, the second laptop developed
the same problem with the memory socket for DIMM-A. My solution for applying additional downward pressure on DIMM-A was a small tie-wrap with only the locking part plus about one-inch of the plastic strap still attached. I postitioned the lock of the tie-wrap between ICs on the DIMM near the edge where my finger was pressing, and used the strap portion as a tail to tape the tie-wrap to the DIMM. When the memory compartment door is replaced it pushes on the lock of the tie-wrap and duplicates the action of my finger in pushing DIMM-A down closer
to the motherboard of the laptop. Now I know why some people resorted to replacing the motherboard of the D600, you get a new socket for DIMM-A in the repair. 1/15/2009

david ward Jan 17, 2009, 03:24pm EST Reply - Quote - Report Abuse
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>> Re: Caps Lock flashes 10 times in series, no display power
i had the very same problem,

its all to do with your ram and is very easy to fix. all you need is a phillips head screwdriver (the cross head one) and some common sense.

what to do:

1) unplug your laptop/make dure there is no power going to it and its not turned on (which it shouldn't be if you have to be doing this)

2) turn over your laptop, you will see quite a few screws and what looks like a panel.

3) unscrew the screws marked with an "M", put them somewere safe and then prize open the panel,it may be a bit stiff but dont worrie just use a bit of force (in moderation) nothing will break, its beacause there may be some glue holding it down.

4) you need to remove the RAM which is the green circuit board about 2.5" by an inch with all the black squares on it. to do this simply push the white/yellowish coloured levers at either side of it away from it. it will pop up

5) carefully remove the RAM (just pull it, no force is needed)

6) insert the RAM you have just removed into the space along side where you just took it out, (line up the "tounge and groove" and push it into place, then push down and the levers will secure at either side.) it will be obvious where this space is.

> if the space is already being used by another RAM try swaping them.

7) now all you need to do is re-fit the panel, screw it down and turn on your laptop. you may want to try turning it on first just incase it dosnt work but it should go fine.

Gerritt Jan 17, 2009, 09:48pm EST Reply - Quote - Report Abuse
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>> Re: Caps Lock flashes 10 times in series, no display power
David,
Though re-seating the DRAM, the suggestion you make, can fix this problem in some cases, in most the issue is the socket itself not holding the DRAM properly in the first case, thus the suggestion to increase the force on the DIMMs in the sockets permits for a better connection. This also incorporates the cleaning of the socket or the pin connections to reduce the resistance caused by differential metals oxidation.

Yours is the first step, the others are subsiquent steps.

Thanks for your input however.

Ad Astra Per Aspera
(A rough road leads to the Stars)
We all know what we know, and everyone else knows we are wrong.
System Specifications in BIO
nathan decker Mar 10, 2009, 07:34pm EDT Reply - Quote - Report Abuse
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>> Re: Caps Lock flashes 10 times in series, no display power
my glorified paperweight (e1505) had the same problems, i tried all the lil tricks the past 3 days to no avail. i found the caps flash codes on another forum and it said somethin was wrong with the processor. fearin having to purchase a whole new laptop i contacted Dell support. he had me pull out the HD, ram battery and DVD drive and run on ac. reseated the HD and ram and booted just fine it was the DVD had been jarred somehow. powered off and inserted it back and no problems.

S. Johns Apr 08, 2009, 01:50pm EDT Reply - Quote - Report Abuse
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Edited: Apr 09, 2009, 12:49pm EDT

 
>> Re: Caps Lock flashes 10 times in series, no display power
I own 2 Sony Vaios, 3 Dells, 4 Gateways and have had this problem many times. The problem is part crappy manufacture, part cheap lightly-plated SODIMM sockets, and partly heat related. The Sony and Dell are the only ones I have ever seen the 'Pressure method' work 100% of the time on, and on mine, I just levered the RAM into place but did not snap it down, placed a business card lcrosswise across both and put the cover back on. The cover holds them in sorty 'springly-like, the business card distributes the pressure across bth sets of RAM, and HEAT causes them to expand and force a good connection. Cleaning all RAM with a soft eraser shines them like a new penny (only GOLD) and cleans off the microscopic oxidation too. A Spray bottle of GOLD contact cleaner does the sockets good and not manhandling RAM in the first place REALLY helps. I have seen people plunk down 100.00 for a store-installed RAM upgrade and the tech use bad screwdriver and Truck-Mechanic fingers to get the old out, and Paul-Bunyan pressure to SNAP the new in (and press 3-4x to 'make sure' its seated. The MB was flexing under the pressure he applied.

For you non-techies, it is very easy to hose a perfectly good laptop by NOT fully releasing the side-latches (some metal, some plastic) BEFORE gently lifting the RAM up 1/4", away from the pin/contact seating area, and OUT of the sockets. Actually, if you do it right and do not physically touch the face, sides or corners of the RAM when you use your Left and Right thumbnails to 'tease' the latches away from the sides of the RAM, it will POP out all by itself. :)
Now... putting new RAM in is REALLY easy and does not require any force or pressure at all. Look at the socket and the RAM and orient your RAM so the slot in it (the RAM) and the raised portion of plastic in the contact seating area line up. If it is OBVIOUSLY not, flip the RAM over and check again. If it still will not, or can not line up... it is the wrong type RAM for your machine. Take it back. Do not try to 'make it fit' ;-)

Once you have RAM oriented so it WILL slot in, take the RAM between your index fingers and thumbs so the contacts are facing AWAY from you and hold firmly by putting the tips of your fingers into the holes on the sides of the RAM, ease the RAM into the socket and seating area, wiggle a bit side to side and seat in snugly, then maintaining the hold with your 2 Thumbs, tease the latches away from the socket edges with your fingernails (under the edges of the new RAM) so they both clear the sides of that RAM, then gently press down a bit further with your thumbs until the RAM face is below the latches and finally release the latches making sure BOTH are now above the RAM face. Done.

Lousy manufacturing and cheap sockets are a pain but not ever using excessive force or just 'snapping' / 'popping' RAM into place will definitely lessen your chances of ever experiencing these RAM-Related problems.

I recently observed a Dell owner (C640) who had replaced his 1.8Ghz 4m processor with a 2.2Ghz one and updated his BIOS to handle the faster RAM required for optimum performance under the new (and very expensive chip), allow a store tech service person try to 'fix' it and get it working again with 3 different sets of 512Mb from 3 different vendors (all failing of course) b/c he manhandled the RAM into place, rudely flipped the box, opened the display and powered on. Over and over. No RAM was sold that day and the tech told the owner that 'he' must have done something wrong in the upgrade. Wow!

I got the guys attention as he was leaving the store with his 'busted' laptop, told him to go back and buy (!) the Crucial 512DDR he'd tried and let ME try to make it work. If it didn't, I'd BUY the 512Mb off him and he'd lose no money. I tried 3 'non-invasive' tricks to get it to boot, then opened it back up and used some store business cards to 'fix' it and using his old RAM got it to power-up again. He was amazed. Then I disabled the BIOS POST (Power On System Test) Minimal/ Quick setting , and set it to Thorough, exited SETUP with save (ESC and Y) and powered off. Next I re-opened his PC, tore open the Crucial 512Mb, replaced his RAM, replaced the business cards, screwed the cover back on, powered up and .... and .... and BINGO!

He let me keep the old RAM ;-)

Ummmm Anyone know how to cure the 'Creeping cursor" problem? :~ Only happens on the C610 (Win2000) when I'm doing something REALLY important - so I don't use it much anymore cuz everything I do is important ;-)

jo mc Apr 26, 2009, 02:41pm EDT Reply - Quote - Report Abuse
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>> Re: Caps Lock flashes 10 times in series, no display power
You are a genius! it worked - we thought this was a power connection problem - but you were right!

Joshua Schaeffer Aug 11, 2009, 12:00pm EDT Reply - Quote - Report Abuse
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>> Re: Caps Lock flashes 10 times in series, no display power
clean ram with alcohol and reseat. this fixed my prob like a charm

Kris Knigge` Dec 03, 2009, 07:17pm EST Reply - Quote - Report Abuse
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>> Re: Caps Lock flashes 10 times in series, no display power
MY computer does that too. I turned off my computer by holding the power button and it did this. It sometimes turns on, but always freezes. To get it to start for a little while is disconnect the power cord and take out the battery. Leave i out for a little while like 3 minutes and put them back in and turn it on. Mine ALWAYS freezes so then I jus urn it off, but im getting closer. Let me know if you guys figure it out!

Gerritt Dec 03, 2009, 07:45pm EST Reply - Quote - Report Abuse
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>> Re: Caps Lock flashes 10 times in series, no display power
Kris,
Read the thread....
Please don't post unless the previous answers don't work.
You can skip the first 4 pages and just read page 5 and find a fix.
If following the clean, re-seat, or padding doesn't work, then you may have a bad memory module.

good luck

Ad Astra Per Aspera
(A rough road leads to the Stars)
We all know what we know, and everyone else knows we are wrong.
System Specifications in BIO
E B Dec 22, 2009, 06:16pm EST Reply - Quote - Report Abuse
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>> Re: Caps Lock flashes 10 times in series, no display power
I had the same... Two 256 modules removed the one in Slot B and left the module in slot A.

It booted up like a champ thanks for the insight guys have a good one 8)

E B Dec 22, 2009, 06:17pm EST Reply - Quote - Report Abuse
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Edited: Dec 22, 2009, 06:18pm EST

 
>> Re: Caps Lock flashes 10 times in series, no display power
Im gonna try to put slot B back in after a complete shutdown cross your fingers

Matt V May 21, 2010, 02:03am EDT Reply - Quote - Report Abuse
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>> Re: Caps Lock flashes 10 times in series, no display power
Solution!

Hi everybody. I have a very cheep solution to your problem. Now tested and working fine on two different Dell laptops, C400GT och C840.
Open the bottom panel, put a little piece of soft rubber on the B-RAM, close the panel so the rubber thing press the memory modul a little bit down, and reboot. Now your Dell will work fine, I´m shure!

You can make a test first. Open the bottom panel, place the PC in your knee with one finger pressing the B-RAM-module up a little. Start the PC with Windows and all the applications you want to use. Everything should work fine.

Now take your finger away from the B-RAM-module and your Dell PC will crash! Still the RAM is positioned in its ordinary place with the white attaching parts.

Let us all know if this is the solution for all of us. And please somebody, tell Dell support!

Anders Egerö
Sweden





Anders Egero Your legacy lives on I had a Dell inspiron e1405 with the same problem after removing 1 stick of ram and " i put the rubber in and it worked" as seen on tv thanks Yall

johnathan ferrell Jun 03, 2010, 08:30am EDT Reply - Quote - Report Abuse
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>> Re: Caps Lock flashes 10 times in series, no display power
hey don't know if ya still here i know it's and old post but thanks for the fix .ya hit the nail on the head ....lol dell's are such a pain.thx agian.pull memory out and replaced it now works just fine.....Dell c640 latitude

Duncan Murray Oct 10, 2010, 07:21am EDT Reply - Quote - Report Abuse
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>> Re: Caps Lock flashes 10 times in series, no display power
I registered just to post a big thanks to Anders!

Fingers crossed it will carry on working, but I have a feeling that my partners Dell Precision M2300 will not run into the same sort of problems for a while...

:)

Cheers!

D

nathan h Oct 28, 2010, 05:37am EDT Reply - Quote - Report Abuse
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>> Re: Caps Lock flashes 10 times in series, no display power
Hi all, I have a Dell Latitude D400 , and it works fine now. I'm using it to post this. I have ubuntu running on it.

The only problem is that it is a bit slow, i'm trying to add memory but I get the A led flashing around 10 times then it goes off.

Can anyone help? At first thought I tried buying different makes of ram, but I've had the same problem over and over again.

Ricardo White Oct 29, 2010, 11:23am EDT Reply - Quote - Report Abuse
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>> Re: Caps Lock flashes 10 times in series, no display power
hi guys i must say first that a think its stupid that i have to register to offer my suggestions. anyway, whats done is done. i had this problem, thought that it was finito. however after reading this thread i realize that maybe the two pieces of memory i took from my compact and put into this computer may be the cause. so i took em out and put back the 256 that came with it. still it would turn on....so i took out the battery and unplugged it from the wall...then i held do the power button to get all the juice out...next i flipped it over and took to look at the memory and i realize that its not seat properly....i looks seated at a glance button truth is that the gold pins or whatever they are called is not suppose to show when they are all the way in....and that could be the cause for a lot of you on here because after i gave it everything to make sure that it was in....while clipping in the metal pins that secure it to the dimms....i turned it over plugged in the power cord (no battery) and wallah...

note: holding down the power button for at least five seconds while turning it on seem to help at one point...thats on the first press



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