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Memory installed and Lines appeared

Installed additional memory in a laptop computer and when I first booted up there were horizontal lines all through the screens all the way through to the Desktop.  I stopped and rebooted and there were lines on the black screens but when it got to Windows it was OK.  The next time it was booted up the lines appeared again all the way throught to the Desktop and then the next time it was booted by the time it got to the desktop - the lines were gone and Windows was OK.  

What can cause this- is it bad memory or could it be a Video driver as the memory tech suggested?
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mjdey
Asked:
mjdey
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9 Solutions
 
haim96Commented:
this could be becouse of the memory, if the video card use shared memory.
you have to be sure that the memory fully compatibale with the notebook.
if you can , try to disconnect the new memory and check if the problem repeat.
beside, make sure that when you installed the memory you didn't moved the LCD plug.
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CallandorCommented:
Bad memory would generate other kinds of errors - for pixel problems such as you describe, it could be a video driver problem or overheating.  If it's overheating, blow out the dust in the vents to make sure it has circulation inside.
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ridCommented:
Probably not the drivers, if the lines appear even before windows has started. More probably a memory issue. Try to switch places between the memory modules and see if the problem is still there.
/RID
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PCBONEZCommented:
I agree. It's a memory issue.
You either have a bad module, one of the wrong specification, or possibly it simply didn't seat properly in the slot when you installed it.
~~ Don't forget to look at the density when checking memory specs.
.
You didn't mention the laptops make/model so I can't tell you much more.

PCBONEZ
.
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jimilicaCommented:
Well it's hard for you now to realize what is the problem since you get two different kind of answers.
My opinion is to check with one bank of memory, the one that you installed this time, to see if you have this problem again. Check if there is a FSB compatibility between the two banks, if they are compatible try switch the slots between them and also do what callandor sez, cleaning the fans for the air to circulate inside.
Check also the cables just to make sure they are prperly inserted.

HTH
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jimilicaCommented:
You could also uninstall and reinstall the driver so the intrerupts to arrange themselfs.
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haim96Commented:
i don't think that there is any connection to the driver since
the problem is in boot state and not only in windows.
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CallandorCommented:
If these lines appear before the Windows logo, then I agree that it is not a Windows driver.
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bradbrittonCommented:
Could is be possible that the video card in the unit is loose? Not all laptop cards are "built in" to the MB.
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PCBONEZCommented:
Yes, possible.
If it has one the video card could be loose.
Also attaching cables/connectors.
But the problem goes away in Windows so I still think a memory problem is more likely.
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scrathcyboyCommented:
This is not so much a case of "bad" RAM as it is too slow for the system.  You probably bought CL3 RAM, and you need CL2.5 RAM, which is what most modern chipsets need.  This CL is the refresh speed, not the "PC2700, PC3200" rating.
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mjdeyAuthor Commented:
scrathcyboy, I ordered the memory from Crucial and I put in the info about the machine (Dell, Inspiron 1150) and it came up with the following info for the 512mb chip that I ordered...

Part # CT363193 - DDR PC2700 CL=2.5 - unbuffered non-ecc - DDR333 - 2.5V 64Meg x 64

So as long as that is what they actually shipped - then I guess I have the correct CL2.5 that you referred to.  
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haim96Commented:
did you try to remove the new memory ?
it's realy can help you to decide if this the memory fault or not.
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mjdeyAuthor Commented:
Yes, I removed it and it booted up ok.
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ridCommented:
So you have the right kind of  RAM module, but it could still be faulty...
/RID
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mjdeyAuthor Commented:
Jimilica,
Not sure what you mean about "Check if there is a FSB compatibility between the two banks, if they are compatible try switch the slots between "?  FSB compatibility?  How do I check that?
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PCBONEZCommented:
Jimilica was -trying- to suggest that you switch the modules in the slots.
If the memories are slightly different it sometimes matters which one is in the first slot.

You might also try booting with JUST the new module installed and see how it does.

I suggest you run memtest on the new module.
http://www.memtest86.com/

.
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mjdeyAuthor Commented:
I went to the Memtest 86 site - I've read through some of it but I wondered if you would be able to direct me on downloading, installing and running this program.  

As far as downloading I clicked on the link and a file showed up when I clicked on it I was able to download - I chose my USB drive - will that work?  If that is OK - what do I do next?
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PCBONEZCommented:
I suggest you print the instructions from their page so you can read it as you go.

You will find what you need under "windows installation" on their page.

With a Windows system it says you need a bootable floppy or CD to run the program.
I'm not sure if you can run it off a USB drive. Probably can if you can boot from a USB drive. (Never tried.)
It's a stand alone program which basically means it uses it's own Operating System while it's running.
.
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top_hattCommented:
i would play with different combos where the memory is seated. Mainly the one that you just installed, put that one in the other slots and see if it goes away. Lot of systems are picky when it comes to where double sided and single sided ram is installed. Also, did u where a static discharge strap. Memory is very sensitive to static discharge.
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top_hattCommented:
not that i even own one or ever used one, lol
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mjdeyAuthor Commented:
I haven't done anything (I was getting info while I waited for the person to bring me back the computer) and it seems to be ok now.  Does this make any sense?  When I first installed the new memory it gave me the lines.  When I rebooted it whent through to windows and was clear in windows and seemed OK.  When the person took it home - she had lines all the way through to Windows and then called me to say it "healed itself".  I had her bring it back to me to be sure and I just turned it on and it booted up fine... Do you think I should check it out further or leave it alone?  She lives 60 miles away and I hate to have to have her do through more of this back and forth and if I need to return the memory I will have to do it soon.  What do you all think?
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PCBONEZCommented:
At a minimum I would remove and reseat the memory a few times to make sure it has good contact in the slots.

All metal oxidizes to some degree. You get a surface corrosion layer.
~ Including on the contacts in slots and on memory modules.

Simply installing and removing the modules a few times is usually enough to rub off the corrsion layer at the contact points.
.
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mjdeyAuthor Commented:
I ran the memory program and no errors were found.  I rebooted several more times and each it booted up fine (no lines).  I am guessing that it might have something to do with the oxidize theory and it somehow burned off the oxidation with repeated use?  In any case I decided to go by the theory "If it aint broke don't fix it".  Thanks for all the help and tips.
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