Hello
I have lenovo y560 with ati graphics givin power problems when u press power btn comes on for just 1sec and shutdown.i have changed cpu and micom also bios.same issue all supplies come for 1 sec and then shut down.where can be the problem graphics or hm55 pch.

Hi Bios pierced? Pomoymu there are two flush. One BIOS, the second mult. If necessary firmware is from Lenovo B560 should approach can throw off the post.

Bios is okay. Changed pch hm55 also but dont have the ati graphics card.what else can it be does anyone have power sequence for this model.
Thanks