05-19-2017 07:53 AM - edited 05-19-2017 08:06 AM
Hi, i have a custom bios on my g400s and after a change the VRAM to 1024 (i know it was stupid), the laptop rebooted and now it reboots every 5s. The screen is blank, there's no beep, nothing, just keep restarting. I tried to turn it on without the battery, remove de CMOS battery, tested the ram sticks, but no luck yet. I also tried to a bios recovery with a usb stick and pressing fn + b, the fan goes full speed, i waited for an hour, but the led on the usb stick dont even turn on. I dont know what to do now, please,help me!
05-22-2017 01:03 AM
Thanks for using the Lenovo forums.
It may not do anything, but try a static discharge for this, it may help to resolve the issue or at least get rid of any built up static on the motherboard.
(If the battery is internal, please just skip the remove/replace battery steps.)
1. Turn the unit off
2. Remove the battery and the Mains adapter
3. Press and hold the front power button for 30 seconds
4. Replace the battery and the Mains adapter
5. Turn the unit on as normal
Hope this helps, let us know how you get on.
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