China DOS Union
-- Unite DOS · Advance DOS · Grow DOS --Union site: www.cn-dos.net Forum site: www.cn-dos.net/forum
|
China DOS Union-- Unite DOS · Advance DOS · Grow DOS --Union site: www.cn-dos.net Forum site: www.cn-dos.net/forum |
| Guest | Log in | Register | Members | Search | China DOS Union |
|
中国DOS联盟论坛 The time now is 2026-08-25 19:10 |
47,812 topics / 349,910 posts / today 0 new / 48,263 members |
| 其它操作系统综合讨论区 » [Help] A strange motherboard problem??? |
| Printable Version 857 / 7 |
| Floor1 pizigao | Posted 2003-06-13 00:00 |
| 银牌会员 Posts 292 Credits 1,063 | |
|
When I powered it on today, the CPU fan and case fan connected to the motherboard both stopped working at the same time!!! (There are two 3-pin fan headers on the motherboard. I tried swapping in a good fan, and it still didn't help.) My initial conclusion is that the two 3-pin fan headers on the motherboard aren't supplying power, but they couldn't both fail at the same time, could they?? Please have an expert give the reason and a solution. (Don't just say it's a motherboard problem and tell me to replace the motherboard!!! :））
|
|
| Floor2 Roy | Posted 2003-06-13 00:00 |
| 管理员 Posts 1,633 Credits 4,869 | |
|
Can the machine still boot?
|
|
| Floor3 pizigao | Posted 2003-06-14 00:00 |
| 银牌会员 Posts 292 Credits 1,063 | |
|
It boots and works normally!! I measured with a multimeter, and both 3-pin fan headers have voltage (12V)?? Why is there power, but neither fan spins???? Could there be a problem in the power supply circuit!!!
|
|
| Floor4 爆火 | Posted 2003-06-15 00:00 |
| 初级用户 Posts 8 Credits 131 | |
|
Why not just connect the fan's power cable to another power connector?
|
|
| Floor5 Roy | Posted 2003-06-15 00:00 |
| 管理员 Posts 1,633 Credits 4,869 | |
The following is quoted from pizigao at 2003-6-14 13:06:55:Have you tried testing the fan on another machine? |
|
| Floor6 pizigao | Posted 2003-06-16 00:00 |
| 银牌会员 Posts 292 Credits 1,063 | |
|
I already tried that, it's not a fan problem!!!
|
|
| Floor7 龙卷风 | Posted 2003-06-16 00:00 |
| 初级用户 Posts 28 Credits 198 | |
|
Take the motherboard out and check whether there are any bad solder joints on the back. In this kind of situation, there's really no other way besides checking it yourself.
|
|
| Floor8 pfox | Posted 2003-06-18 00:00 |
| 银牌会员 Posts 446 Credits 1,451 | |
|
It's possible the fan control IC is bad. Either send it in for repair, or buy a fan that connects to the power supply connector.
|
|
|
[ Contact the Union admin team -
中国DOS联盟 -
Standard version ] Sponsored by ifanr Inc | © 2001–2023 |