CD/DVD drive not recognized and hard drive test result show "Repla
Posted 28 May 2012 - 03:45 PM
Posted 01 June 2012 - 11:05 PM
Now I have a BLACK SCREEN problem. When I hit start, all lights light up, fan spins, DVD player spins, but don't feel the HD is spinning nor working. I took it apart and check on the CPU AND GPU but can't tell anything is worng.
As some suggested, try to reset by removing battery and power cord and press power button 30 to 60 seconds. Also try hitting DEL key constantly while pressing CTL + ALT. No luck...
Posted 02 June 2012 - 07:53 AM
Posted 02 June 2012 - 08:14 AM
Before you go to the trouble of checking out the MB to screen display cable check that the notebook has not been set to external screen mode - this may be done by pressing the Fn and one of the function keys on the top of the keypad or it may be a single function button with an image of a screen on it.
If no joy after checking the above hook the notebook up to an external screen and see if you then get a display, again you may need to use the keys mentioned to toggle between screens.
Let us know the results please.
Posted 02 June 2012 - 02:39 PM
I try the instruction, first without connecting to external screen and then connect to exteral screen. No luck..
I suspect if the keyboard is even responding? the CAP lock indicator light which is on the left boarder of the keyboard does not light up when press on it. Same as the NUM lock indicator light.
I also check the keyboard cable which is not loose at all.
Edited by horseshoe, 02 June 2012 - 02:42 PM.
Posted 02 June 2012 - 03:41 PM
Posted 02 June 2012 - 09:55 PM
Posted 03 June 2012 - 03:19 AM
As Ron has said this is looking like an issue with the replacement board so as suggested contacting the supplier for some guidance is a good idea as you are at least making them aware of the issue sooner rather than later.
Posted 03 June 2012 - 07:48 AM
Posted 03 June 2012 - 08:05 AM
Eemail the issue to the supplier and waiting for answer. will let you know if they provide any solution.
Posted 03 June 2012 - 11:55 AM
Two other thisngs that I noticed and don't know if something's wrong?
(1) a few minutes (less than 5) after the power is up,the base of the laptop get verry hot right under where the power button located.
(2) when I turtn off the laptop, i can hear a 'pop' sound then the power shut off. This never happen before.
Although indeed as the motherboard is shown as refurbished, it could be faulty, it clearly was NOT completely Dead On arrival, as it did boot and load Windows.
I suspect, either the problem never was the motherboard, although indication was that this was the cause, but in fact it was a CPU or power issue.
Now the indication, given by you in the quote above, certainly appears to indicate a problem with cooling
1. Have you connected the cooling fan to the motherboard header
2. When you checked again that all was apparently correct, before it would not even boot to BIOS, is there any chance you disconnected the CPU power, on the image which is not good quality it appears to be to the left and below the CPU mounting plate.
3. The CMOS battery appears to have a plastic or polythene sheet to prevent it discharging whilst in storage, it may NOT be as noticeable as on the image, sometimes it is merely a plastic film on the base of the battery - are you certain you removed it.
4. In view of the apparent extreme heat underneath the power button, check you have no trapped wires.
I DO APPRECIATE that you have said that all connections have been checked but with respect this
Check the touchpad cable and it is firmly attached. However, I pull it out and put it back again which make some improvement (before the volume adjustment lcd light was not light up, but now all the LCD lightS light up).
tends to suggest that you may be well advised to check again.
If since it was apparently working, although not perfectly after the motherboard replacement and now it will not boot at all, improperly seated CPU, RAM, or a fan connection, power connection - not properly made, MAY be a course of checks to take
Posted 03 June 2012 - 02:43 PM
All three cables around the fan and the CPU are connected firmaly. I also check the cables and they are in good shape, no damage, no loose end wire etc.
There is nothins wrap around CMOS battery.
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