【求助】出大事了兄弟们，HP8770w通电自动开机

mklys

HP8770w拆机清灰换硅脂后，出现了一个大问题无解，就是插入交流电或装上电池都会自动开机，重装系统或驱动问题仍旧，快崩溃了，那位大师帮解一下，谢谢

mklys

进入BIOS系统配置也仍旧

huerhei

我的8730w也这样，感觉没啥事，7,8年了也没坏

huerhei

还有我的是插着电源，如果把电源拔掉就断电了，电池基本不起作用，偶尔起作用。

XIN159

不管它了，将就用

XIN159

估计主板里面有元件坏了（控制部份）

thinkcocol

如果一切正常的话 估计只是 cmos 电池没电了

ptzll

QUOTE:

mklys 发表于 2024-5-16 09:32
HP8770w拆机清灰换硅脂后，出现了一个大问题无解，就是插入交流电或装上电池都会自动开机，重装系统或驱动 ...

大概率是给主板供电的小电池 电压不足了，更换掉纽扣电池（CR2032）就行了

XIN159

QUOTE:

ptzll 发表于 2024-5-17 09:29
大概率是给主板供电的小电池 电压不足了，更换掉纽扣电池（CR2032）就行了  ...

和清灰有关的吧，清灰之后电池就没电了？

Mashcar12

QUOTE:

XIN159 发表于 2024-5-17 15:53
和清灰有关的吧，清灰之后电池就没电了？

No, it is normal for RTC battery to wear out in that many years. Just replace it with new one, on battery is name (example: CR2032). Bad battery don't "remember" clock, bios settings stays same.

When cleaning you can damage laptop in other ways. For example:
1) Using compressed air on fan connected to motherboard  (fan will act as generator, disconnect connector or block fan with some object)
2) Using vacuum cleaner on motherboard (easy way to make electrostatic discharge on mobo components, better to use ESD safe brush and compressed air)
3) Cleaning LCD by spraying first then using cloth (water damage to lcd board).
I know that may be obvious for some, but nobody knows everything
Anyway, 8770w is so well designed it will protect itself in many cases. One time I accidentaly plugged headphones connector into USB. Instant black screen, I panicked, disconnected battery and charger, dissasembly, looked at board, saw nothing suspicious, reassembly. Plug in power, everything works as before.

XIN159

QUOTE:

Mashcar12 发表于 2024-5-17 21:48
No, it is normal for RTC battery to wear out in that many years. Just replace it with new one, on  ...

也是，RTC电池 换换更健康，此机确实耐操，我拆装好几次都没啥问题

远行客

如果主板小电池没电了也会自动开机，还有bios里面也有自动开机设置，一个是打开盖时打开电源，一个是交流电打开电源。

riverzjs

hp bios 设置里有一项就是插电自动开机