You mean to say you bought a replacement mobo AND a CPU? What a waste... What does the new mobo do with the old CPU? Yes luckily I ended up paying only $20 for the new mobo+CPU so not a huge waste of money but definitely consumed a lot of time. I had actually replaced only the mobo first and left t...

What happens if you do the above with the old mobo? Well I tried with the old mobo and it gave the 1-3-3-1 beeps. So I decided to do a part-by-part reassembly with the old mobo and old CPU where I booted the machine after attaching each part. And amazingly, no part (except one) seemed to stop it fr...

RealBlackStuff wrote:... it should beep 1-3-3-1, assuming the speakers are OK.
If no beep, then you have a dead motherboard ...
What happens if you do the above with the old mobo?

No beep. I will try with the original mobo later. Thanks.

Thanks. I tried the below tests with the motherboard still physically in the magnesium frame and that frame within the "base cover" (bottom plastic case) so that I could ensure the fan is mounted correctly, but otherwise with only the items you mention electrically attached. Test-1: Nothing ever sho...

I tested on another working T410 (not quite the same sub-model) and I can say that these components do not need to be connected to boot: 1. main battery 2. motherboard battery 4. HDD 5. CDROM 10. LCD main cable (actual display connector) 11. LCD second cable (webcam + keyboard light + lid switch + w...

Welcome to the forum. ... Thanks @RealBlackStuff. Yes replacing the mobo was drastic but I am trying to get it fixed in a rush. The replacement mobo is from eBay and is used so I hope I am not so unlucky that it has the same issue as the original has (whatever that might be) I guess there are 3 LCD...

Hi, I have a T410i model 2518F5U. It will not boot. When hitting the power button, the ring around the power button does illuminate and stay on, but the LCD never turns on. The mic and speaker on/off LEDs come on for a second, as does the Bluetooth LED and the Caps Lock LED, and the LED on top of th...