On my former laptop it's like this when I turn it on, I hear the typical laptop sounds when it boots up but the display stays black.
Have already tested the graphics outputs (HDMI and VGA) but no signal.
Can that be that the display is defective?
thank you in advance
Hardware:
Processor: Intel Core i5 3230M
GPU: Nvidia GeForce GT720M
Not likely.
Connect external wired keyboard to a right USB port, turn on the notebook, wait a bit. If the keyboard responds with LED on NumLock or CapsLock keys then the board is running, the error lies with display / display cable or their contacts.
If as expected, it does not respond, the error is due to motherboard. Google for Lenovo G700 motherboard repair.
Just connected an external keyboard several times CapsLock NumLock and Roll Lock pressed the leds have not lit up
Then blame the board. Whether embedded controller, its firmware, BIOS chip or PCH… These errors mostly occur on this board.
In a fraction of all cases, it helps to remove the BIOS battery for a short while, thus resetting CMOS.
Have the Bios battery removed 10 seconds and restarted exactly the same game. But sometimes a question where to find the part number of the motherboard?
It is printed on top near HDD outlet. It's called "BAMBI motherboard" It was built with several different GPU and also without a GPU, you have to pay attention.
I find on my HDD bracket a PN number underneath is BAMBI HDD bracket and then a date
Upper side, so under the keyboard and upper case. Fourth photo here. https://de.aliexpress.com/item/33028423013.html?algo_pvid=d94b760a-03b3-4408-8f56-b05b022ea8e7&algo_expid=d94b760a-03b3-4408-8f56-b05b022ea8e7-23&btsid=e87fa50f-4062-483e-a1f4-baa5ec769519&ws_ab_test=searchweb0_0,searchweb201602_2,searchweb201603_55
How do I get to the top? Remove motherboard? Or can I see that when I build the keyboard
Because I have a GT720M with 2GB, and the link shows a version with GT720M and the socket for the i5
So exactly the same as linked. Remove keyboard, remove upper shell then you see this designation. You will not find more information there. The motherboard is called simply as written BAMBI motherboard.
I have the keyboard out there how do I get the top shell off? Have just solved 3 screws that were connected to it, but still can't get down
Perform everything until 5:30.
It is a BAMBI motherboard
What a surprise.
