Fan operates briefly before shutting down.
Fan operates briefly before shutting down.
I'm unsure if the motherboard is dead or if some bad standoff screws are involved. Three of six screws aren't securing properly, and they don't go in fully. After taking everything out, only the power cables and fan remain connected. I removed the CMOS battery for a while and tried inserting RAM in another slot but had no success. I also attempted using a different power supply.
I'm unsure if the motherboard is damaged or if some bad standoff screws are responsible. Three out of six components didn't secure properly, and they didn't fully sink when I inserted screws.
You bought a used prebuilt system? Consider breadboarding the internal parts.
Power Supply:
Corsair CX450M
How long has this PSU been in use and what was its performance during that time?
I also attempted to install a different power supply.
What is the make, model, and age of the replacement PSU?
The motherboard won't power up unless it recognizes a CPU cooler is present.
The cooler fan needs to activate.
Check the screws on the motherboard to ensure they're in place.
You should be able to insert them into the motherboard with your fingers.
Excessive pressure may remove the screws or standoffs.
I attempted to remove the motherboard from the case, but it didn't function at all. After reinserting it into the same case, it operated normally as before. I purchased a new case, which will serve as my second gaming PC, and I plan to test it now. All components were sourced from functional systems. I could consider another CPU for testing if needed, just in case. It would also be wise to verify the RAM is still valid by replacing it with a fresh stick. I'm uncertain about the timing of the power supply purchase, but I intend to buy a newer one once more funds become available so the gaming PC can start working. I'm hoping I didn't damage the motherboard. The power supply I have now is a Corsair CX 450M. I installed it in a new case and connected only the necessary components correctly, swapping the RAM from an 8GB DDR4 2133 model with one from a working PC (8GB DDR4 2400). I hope this confirms another processor (Intel Core i3-6100) is present, matching my memory of having two. I intend to test it. Image 1 Image 2 I've also tried connecting it to a different power outlet using another cable, but without success. I'm unsure if the issue lies there, but I removed the CPU and gently touched the board, noticing several bent components. Good news: NewEgg seems willing to accept a return and replace it.
This situation often arises when standoffs are set to 6-32 (coarse thread) and you attempt to insert M3 screws (fine thread) or vice versa. The presence of 4-40 screws can also complicate matters, making it harder to determine the correct thread size. Pulling screws randomly from a bit box might result in a mix of 6-32 and M3 threads.
This isn't a favorable situation. CX (along with CV) are Corsair's entry-level power supplies, and I believe they no longer produce the 450W model. I've replaced several PSUs in older PCs without dedicated graphics cards using CX550 units, but these results haven't left much confidence. While better options exist, they come at a higher cost. For Corsair, I recommend looking into RM, TX, HX, and AX series power supplies.
Your issue might stem from using an outdated, low-quality CX450 that has surpassed its warranty period. If you're considering continuing with it, I'd advise discontinuing its use to avoid potential damage to other components. Opt for a new, high-quality PSU—preferably Tier-A—now.
If budget constraints exist, Tier-B is an acceptable alternative, but ensure it's at least Tier-C for a standard office setup. On gaming rigs with separate GPUs, I'd recommend a Tier-A PSU from a reputable manufacturer.
Links provided offer guidance on selecting suitable power supplies and avoiding common pitfalls.