Hi everyone I have a MSI laptop it boots and lights come on but there this nothing on the screen its just black
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Re: MSI U250 no diaplay
Probably RS880 failure, reball it or change. -
Re: MSI U250 no diaplay
I think it could be something with the bios but carnt find any way of clearing it or a schematic for this laptop to identify the biosComment
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Re: MSI U250 no diaplay
I am pretty sure it is a NB problem, but you can try your luck.Comment
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Re: MSI U250 no diaplay
Are you sure it's not just a faulty LCD?Comment
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Re: MSI U250 no diaplay
Don't think so and the model is u230 not u250 my mistakeComment
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Re: MSI U250 no diaplay
Have you tried an external monitor or a known working lcd screen? I would try all the basic stuff first.Comment
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Re: MSI U250 no diaplay
Altough it's U230, the main problem is still the same - IGP AMD, RS780 in this case, so reball or change 216-0674026. You should do that long ago.Comment
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Re: MSI U250 no diaplay
Tryed a reflow but now it doesn't turn on just a quick blue light flash think its for the bin gud job it a laptop I got to test withComment
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Hello,
The motherboard in question boots only on cold boot - if I cut power to the PSU it will boot fine, but as soon as I reboot from Windows or even short reset pins it goes into bootloop - 1 second on, a few off and so on.
Initially the board arrived to me broken - bad PCH, after replacing it it worked for a while. I suspected a bad connection, but pushing the IC down does nothing. I don't really think that the PCH is dead, since it still boots and works fine until I reboot the PC. Obviously I tried looking for something that heats up or bad caps, but nothing so far.... -
Hi:
i am trying to repair this Christmas lights from my parents. They are incandescent lights, no led lights.
I have tried with 12V a 24V small lights that I found in Aliexpress but is obvious that are not the right ones. They last microseconds connected. Do they blow because of Amps or Volts?
If I measure the Amps in the string........it's only 90mA. If I measure the Volts in the "green box"......it's between 0 and 190V, but doing a little bit of maths from the number of bulbs in series.......it's only about 6V per lamp.
Could... -
Subject: Lenovo ThinkPad T14 Gen 3 - Boots Only on Charger, Fan Spins Full Speed with Battery
Laptop: Lenovo ThinkPad T14 Gen 3
Serial No: PF-437QTG
PCB: NM-E441 Rev 1.0 (JT4C1/JT6C1/JP6C1)
Extracted BIOS: Will upload tomorrow
BIOS Password: None Issue Description:- Boots only on charger → Works normally when connected to AC.
- With battery connected:
- Fan spins at full speed, no display.
- Not all voltages present (some missing).
- Battery charges correctly (detected in Windows, shows percentage).
- When battery is plugged in while in Windows:
- Laptop shuts
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Hello,
I have a Lenovo here that does not want to power on. The motherboard appears to be clean, no sign of corrosion or obvious fried components. When plugged in, I see 3 blinking lights and then off. It would cycle the 3 blinking lights every 10 seconds or so as long as I have the adapter plugged in. Amp meter shows 20 volts, 0.224 amps, no fan spin, red light indicator near the charge port.
Thermal camera shows a section of the motherboard that is warmer than the rest. It is near the connector labels JRTC1 (CMOS battery). Diode measurement to ground for pin 1 = OL,... -
Does not turn on, lights 3 of the 4 LEDs and turns off and stays like this, presses the power and repeats.
I saw that the room LED lights up only when the screen is connected, so quiet.
We have all the power supplies, even processor, 1.8V
One thing I found strange, it has a very low resistance in the Vcore is giving 1 Ohm , work with notes and such, I know that this is normal in some processors but with this resistance only take video card so found it strange.
I suspect that there may be some leak in the processor.
Anyway, when I press the power, it...
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