Hello. Have this Lenovo g50-30 NM-A311 that came with burning U901 NCP CPU/GPU power ic. after replace, everything works, but with start button dont have CPU/GPU voltage. i have VR_ON signal, VCC voltages but no output/GATE voltages and i found one gpu highside mosfet burned. CPU/GPU have good resistance
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Re: lenovo G50-30 UMA no CPU/GPU voltage after burned CPU/GPU power ic
this lenovo freaks me out.
i replaced NPC CPU/GPU power driver. now i have all powers, but after power button, it goe right to 2.25W and stay there. no video, only system led. try to relash bios, but still the same -
Re: lenovo G50-30 UMA no CPU/GPU voltage after burned CPU/GPU power ic
What's the voltage on CPU VCore? Check CPU reset signal.
Chances are the CPU is dead though.OpenBoardView — https://github.com/OpenBoardView/OpenBoardViewComment
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Re: lenovo G50-30 UMA no CPU/GPU voltage after burned CPU/GPU power ic
Cpu is at 0.73V and GPU at 0.8V
PMC_PLTRST# is 1.8VComment
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I want to know if I could hook up a solar panels to this boost converter would I have any issues doing and I would have issues what would they be
Adjustable Boost Power Supply DC-DC Constant Voltage Current Charging Module
https://www.ebay.com/itm/116497313155?var=416785404161
Here are some of the description from the eBay seller
The main parameters:
1. Product name: High-power non-isolated DC boost module power supply.
2. Product model: 100A2000W.
3. Input voltage: DC12V-60V.
4. Input current: 100A (maximum).... -
Hi all!
I'm trying to troubleshoot a Microsoft Surface Pro (5th gen) model 1796 that won't power on. Motherboard model is M1007506-015. My priority is retrieving data, but the SSD is integrated so it looks like if I can't repair it it'll need to go to a data recovery company. I've done a little basic board repair before, but nothing this advanced until now. So please forgive my ignorance in advance. 😅
I found the boardview for this laptop in the forums here, and am able to open it on my PC with FlexBV.
https://www.badcaps.net/forum/troubl...-hardware-devi... -
Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
Hello, I have an asus Z97-A motherboard and it doesn't start which was working properly before, the problem isn't related by ram, ram slots or psu (I changed all and nothing work), the exact problem is when you switch it on , it starts and after 1 seconds (no boot or display picture) it's off and then on cycle continuously until you power it off from psu also it's responding to the power switch for turning it off if you keep pressing it 3 or 4 seconds (power button pin has 3.3v) , also when you start it with eatx 12v socket connected this is happening (power cycle also all voltages are resetting... -
I have a lenovo ideapad 5 14itl05, board LA-K321P, That will only power up on Battery only, or with battery disconnected and power adapter only. If battery is connected and usb-c power plug connected. It only works on battery and will not charge. I can however force it to charge by connecting the battery from a disconnected state while the power USB c plug is powering the laptop.
Additionally....to add to this strange situation. The usb-c power plug ONLY works to power the laptop on one side when inserted into the boards power usb c plug. If you rotate it 180 degrees, the board gets...
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