My power supply blow up

taurus_2001 · Oct 19th, 2010, 08:04

My PSU blow up the other day when i woke up my machine, i saw some sparks coming out of the box.
Then I replaced the power before I found that none of USB port is working.

The symptom is
1. There is power from USB as the LED is on when I plug in my portable HD, but OS cannot recognize it.

2. None of USB device is recognized, including USB key, mice, keyboard.

3. The PS/2 mouse port is not working either

4. When I open device manager, under USB controllers, there is one device is unknown, which supposed to be Generic USB controller. Other USB Root Hub and controller seem to be fine. After I delete the unknown device and reinstall, it's still unknown and says cannot find the driver. Next day, that unknown device disappear and USB is still not working.

I tried to reinstall OS, USB are still not working.

My guess is the MB is toasted by the faulty power supply. I didn't see any component on the MB is burned or have any smoke smell.

Here my question is what else I should check before I buy a new MB?

My computer has 4G RAM, DDR2, Core 2 Duo 2.13G (Socket 775), any good MB under $100 with PCIx16 to recommend?

Thanks

up2myfeet · Oct 19th, 2010, 09:15

USB PS/2一齐坏，南桥烧了。主板上有个带散热片但没有风扇的下面是南桥

taurus_2001 · Oct 19th, 2010, 09:34

引用:

作者: up2myfeet

USB PS/2一齐坏，南桥烧了。主板上有个带散热片但没有风扇的下面是南桥

Would it work if I just buy a USB card ? PS/2 is not necessary anyways.

up2myfeet · Oct 19th, 2010, 10:05

南桥管理所有外设，包括硬盘光驱声卡USB键盘PCI总线和CPU的联络，开机以后如果南桥芯片不烫可以试试保留主板，买一个USB卡大约$10试试看但可能系统不太稳定

引用:

作者: taurus_2001

Would it work if I just buy a USB card ? PS/2 is not necessary anyways.

taurus_2001 · Oct 19th, 2010, 10:44

引用:

作者: up2myfeet

南桥管理所有外设，包括硬盘光驱声卡USB键盘PCI总线和CPU的联络，开机以后如果南桥芯片不烫可以试试保留主板，买一个USB卡大约$10试试看但可能系统不太稳定

All other devices are working fine, including HD, DVD drive, audio card and video card. I'll try to use USB card first see how it goes.

Thanks

GTAON08 · Oct 19th, 2010, 13:41

应该是主板的某个供电部分挂了，最大可能是super I/O芯片或I/O芯片的供电芯片烧了，南桥烧了主板是起不来的。

还是建议买块主板吧，大约50块就可以搞定。

Oct 19th, 2010, 08:04	#1
taurus_2001 Member 注册日期: Jul 2005 帖子: 86 积分:11 精华:4	My power supply blow up My PSU blow up the other day when i woke up my machine, i saw some sparks coming out of the box. Then I replaced the power before I found that none of USB port is working. The symptom is 1. There is power from USB as the LED is on when I plug in my portable HD, but OS cannot recognize it. 2. None of USB device is recognized, including USB key, mice, keyboard. 3. The PS/2 mouse port is not working either 4. When I open device manager, under USB controllers, there is one device is unknown, which supposed to be Generic USB controller. Other USB Root Hub and controller seem to be fine. After I delete the unknown device and reinstall, it's still unknown and says cannot find the driver. Next day, that unknown device disappear and USB is still not working. I tried to reinstall OS, USB are still not working. My guess is the MB is toasted by the faulty power supply. I didn't see any component on the MB is burned or have any smoke smell. Here my question is what else I should check before I buy a new MB? My computer has 4G RAM, DDR2, Core 2 Duo 2.13G (Socket 775), any good MB under $100 with PCIx16 to recommend? Thanks
taurus_2001 Member 注册日期: Jul 2005 帖子: 86 积分:11 精华:4

Oct 19th, 2010, 09:15	只看该作者 #2
up2myfeet Senior Member 注册日期: Jul 2010 帖子: 158 声望: 0	USB PS/2一齐坏，南桥烧了。主板上有个带散热片但没有风扇的下面是南桥
up2myfeet Senior Member 注册日期: Jul 2010 帖子: 158 声望: 0	与其当社会主义蛀虫，不如挖资本主义墙角

Oct 19th, 2010, 13:41	只看该作者 #6
GTAON08 Senior Member 注册日期: Feb 2008 帖子: 2,326 积分:5 精华:2 声望: 4825963	应该是主板的某个供电部分挂了，最大可能是super I/O芯片或I/O芯片的供电芯片烧了，南桥烧了主板是起不来的。还是建议买块主板吧，大约50块就可以搞定。