标题: Few short circuits in the motherboard and Fix [打印本页] 作者: vusalcrm 时间: 2020-10-25 04:35 标题: Few short circuits in the motherboard and Fix 本帖最后由 vusalcrm 于 2020-10-25 04:38 编辑
Hello to everyone Model: Dell 3537 MB Code: LA-9981P
Problem of motherboard: Short circuit 1. First appeared on the motherboard this was the problem. SY8206D (+1.05VSP). Its pwm was burned and there was a hole in the pcb. Remove pwm.
I cleaned the burnt part. Replace SY8206D -> SY82068D
2. Power supply connected and short circuit. RTL8106E started to warm and remove ic. 3. Let's start the measurements now. +1.05VSP PL301 - 0.6 Ohm. This is not normal full short circuit.
That means the CPU is corrupt. When I put 1 voltage on that line, the chipset started to get hot. 4. There was also a short circuit in this line +3VALW_PCH. J513 (Jumper) - 0.4 Ohm.
I'm sure now the CPU is broken 5. Other short circuit GPU and VRAM-s. GPU coil PL802 1.5 ohm. VRAM coil PL1101 +1.35VGPUP - 0.8 ohm. 6. CPU, GPU and VRAM-s remove. All short circuits disappeared. Everything is normal.
This is an Intel U series processor. i5-4200U. An expensive CPU.
Intel's processors are always expensive.
I offered the client an i3-4005U CPU. Second hand. I did not change the GPU.
The customer accepted in that case. UMA only.
And I started trading...
补充内容 (2020-10-29 18:48):
Compal LA-9981P CPU short circuit
作者: kerokrrl 时间: 2020-10-27 09:51 本帖最后由 kerokrrl 于 2020-10-27 10:00 编辑
Broke a lot of things.Brother, but you don’t seem to use the diode gear to measure.I'm not used to watching.作者: H55 时间: 2020-10-27 10:22
主板烧的东西太多了！你那不是正在打仗吗？作者: qq5287305 时间: 2020-10-27 23:04
yourareveryverygood作者: vusalcrm 时间: 2020-10-28 03:42
