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Hello everyone. I hope you can help.
Laptop is Lenovo y510p (with 755m sli and i7).
A week ago, i decided to flash modded bios (a lot more options), everything went well, then i flashed vbios for second gt 755m.
After that, i was looking for these new options, and i found Vcore Voltage Offset, i changed it to -65mV (i did it because my lenovo temps are extremly high, so undervolting should help a little). I saved setting, and restarted. After restart, i got blank screen. Keyboards led are on, so are power leds, fans are spinning too. And it gets hot after some time (i think VGA is getting hot, but im not sure).
First, i tried all popular tricks, like blind flash, hard reset, FN + ESC and so on.. i wanted to reset cmos via jumper or battery but battery was "sticked" for good and i couldnt find normal jumper (i found 2 pins named "jme1jcmos2" and i connected them with some metal for few sec), still blank screen.
Finally i gave up, and went to computer service.
Today they said that, they flashed new bios but screen is still blank. So what can be the problem? Maybe something with this vbios? This lenovo has integrated graphic and 2x 755m so is it possible that every 3 graphic card got burned or sth?
Which component can be bad?
Last edited by taleoftwocities; 08-17-2014 at 07:19 PM.
Well, it was done by regular computer service.
@lleb, what do you mean?
By the way, i spoke with another guy with same issue, he did the same thing (undervolt cpu in the same modded bios), and he is waiting for Lenovo service.
I could do the same, but i do not want to wait one month for repair...
Guys I have the same problem. I undervolted my Cpu using the InsydeH20 modded bios. After I restart the screen was blank and even the Lenovo logo is not appearing. Can any one tell how to reset the bios or how to solve this problem?
Also for the people here who had the same problem, how did you solve ?
I still do not know how i got it repaired
My Lenovo was in 2 different PC services, in both they said that they can't repair it But when it came from second PC service, i tried to turn it on and it worked
I know that in this second PC service, they tried to replace CPU with working one, and it was working, but mine CPU wasn't. So they said it's dead CPU or motherboard.
Imagine my suprise when i turned it on and it was working
So, you have to send it to service anyway, maybe it will work like in my case, just tell them to flash new bios, if it won't work, maybe replace CPU with working one for a while, then plug in dead one and wait for miracle
sorry for confusing english
Last edited by taleoftwocities; 03-06-2015 at 08:14 AM.
I took my laptop to a nearby Lenovo service center and they said that the motherboard has to be replaced. Luckily mine is covered under warranty so it is free. will have to wait 4-5 days for the laptop.