No one seems to understand what's going on here.
No one seems to understand what's going on here.
The video shows a Dell Inspiron 560 G43t-dm1 running with limited performance. It has 4 GB RAM and an Intel Core 2 Duo E8500 processor. The system often boots without issues but frequently struggles with stability. The main concerns are the fan running at full speed unless a metal piece touches the CMOS, and there is no display even when the GPU is active.
I haven't used this device long enough to notice the difference, even though I've swapped out fresh batteries several times. Once it works again, it should be worth getting a replacement.
I would re-flash the system again. The fan speed is managed by software in the BIOS, until the BIOS runs it will operate at full rotation... suggesting the issue lies with the BIOS chip or the overall chipset. It’s also worth checking the stability of the 5V standby from the power supply; if there’s excessive ripple or drops under load, the chipset might misinterpret the bios code during flashing. This could stem from faulty flash memory, temperature effects, or pressure problems like loose solder joints or internal bonding wires. If the system becomes functional after a period with the fan spinning, it may point to a component such as a ceramic capacitor, the flash chip, or the chipset warming up sufficiently. Try gently touching the bios chip while powering on and consider using a battery in the power connector—this preserves BIOS settings via the 5V standby.
I attempted to push down on the chip during startup and it behaved similarly to what you observed in the video. Could there be any explanation for why the BIOS activates and the system functions after a period of inactivity? It only occurs occasionally, but until I disconnect the PC, it keeps operating. This process seems lengthy and perplexing. If I manage to reach Windows eventually, I’ll try to obtain a BIOS update, though it might take a few days or even minutes.
As mentioned earlier, some technical details can shift with temperature. Certain parts may fall outside acceptable limits when heated, while others improve. For instance, a 100uF capacitor might shrink to just 60uF at room temperature, but as it gets warmer—whether from board heat or electrical flow—it could alter its capacity to around 80-90uF, which is within the typical ±20% tolerance of the device. A broken solder joint might be nearly invisible, yet it’s not a solid connection; it’s just a weak link close to the pad where it was soldered. If you bend the board or press down in certain spots, you could stretch it enough to form a temporary link. Even twisting the case on your desk while placing something on the tower might trigger enough movement to restore contact. In such cases, a slight rotation or pressure could re-establish the connection temporarily. It’s possible that a fault in the flash memory chip—such as a corrupted read of a bios page at room temperature—becomes resolved after some time if it heats up slightly and reads correctly again. Regarding the BIOS, there’s a chance it might work once it stabilizes. The power system usually has two supplies: a constant 5V supply that runs even when the PC is off, and a main supply activated during startup. The 5V standby keeps the motherboard chipset running and can monitor various inputs like PS/2 or network cards. When you press the start button, it triggers initialization, uses more power, and may cause temporary voltage drops if the standby circuit overheats. Over time, this could reset the system, allowing the chipset to read correctly again. You might try heating the power supply with a hair dryer to see if it affects startup—this can sometimes reveal hidden issues.
I recall dealing with the PS3 where it would flash the yellow warning light repeatedly. It functioned briefly before repeating itself. Similar to the PC situation, I performed the same steps and saw no improvement. Based on what I can observe, there seems to be no immediate issue with the power supply or nearby components, though I remain uncertain. Unfortunately, given its long-term condition, it might be time to consider recycling it. It’s disappointing, but I don’t see other viable options.