Question about Lifetime HP Compaq Presario CQ45 Series Replacement Laptop Power AC Adapter / Charger (91812068951)

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Cq45 no display caslock light blinking countinusly

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Probably a GPU issue. Take a look on flea bay for a repair. The solder has melted under the GPU chip due to lead free soldering techniques.

Posted on Oct 22, 2013


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Posted on Jan 02, 2017


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I found just this online
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Cq45 caps lock light blinking no display what is the solution

How many blinks? eg. *** *** *** post back here or email

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If your laptop appears to boot up and the hard disk LED flashes, then the problem is probably a back light fault. This can be a faulty inverter or a faulty CCFL lamp. Please click on this link and follow my instructions to identify the fault and possible fix :-

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Loptop presario cq40 turn on with out display

You probably have a mbr virus.

Download The following iso listed below. It is the latest version of the Kaspersky rescue disk. You need to burn it to a CD with a program like Imgburn (Which is also FREE like the iso file). Then you need to boot from the CD and run the scanner. It should fix you right up.

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Aug 18, 2012 | Compaq Presario CQ40 CQ45 CQ50 18.5V 3.5A...

1 Answer

I have compaq presario cq45. When I start laptop First start fan for 5 Second then blink caps lock and num lock LED .and display not visible.I chack RAM that is proper ..

If the fan stops after 5 seconds and you can't get a display your motherboard, GPU, or CPU are shot. Remove the ram, and power it on if you hear no system beeps your, GPU, or motherboard are shot. Probably cheaper to replace laptop then repair, just remove your HDD, so you or someone else can retrieve your information for you.

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Compaq Presario CQ45 screen remains blank... help

Open the Notebook from the back side and locate the RAM. Now remove the RAM and place it again and check, you can even try inserting the RAM in different slot if any used slot is available.

Check out.

Feb 12, 2010 | Compaq Presario Notebook

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Winxp Drivers For CQ45-112AU or CQ45-106AU

Hi there
Apparently this model is only able to work on vista, - have a look at HPs page, here:
regards /Teis

Jan 17, 2009 | Compaq Presario Notebook

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