I recently attempted to upgrade the CPU on my HP tower. I had a Phenom X4 9500 with the M2N68-LA motherboard and was attempting to upgrade to a Phenom II X4 960T with a 95 TDP. According to HP's website, this new CPU isn't on the compatibility list but then again the list was posted way before the Phenom II line was created anyway. Secondly, I've read several posts from users with my same equipment upgrade to the same new CPU successfully. Their bios didn't recognize the new CPU by name, but it functioned perfectly. My bios version is 5.13 I believe
Well, here is my issue. When I attempted to remove the old heat sink, the thermal paste wouldn't release and so I accidentally pulled the old CPU out of the socket without being able to release the lock. Everything visually checks out- no damage, no bent pins, etc and the new CPU seemed to sit down on the old socket just fine and it locked in. I hooked everthing up and went to power it up and the tower wouldn't run the bios. The fans all ran, the hard drives were spinning, the lights were on, but the monitor didn't get a signal from the video card (Nividia GTS 450). Long story short, I pulled the new CPU out thinking it was a compatibility issue and put the old one back in. Same issue, no bios boot. The original heat sink fan and CPU are back in, all cables plugged up, tried removing ram, video card, CMOS battery, ran through the CMOS clear with the jumpers, let it sit unplugged for over 2 hours, all to no avail.
Did I do something to cause my bios or Mobo to fail? Can I reflash the bios with a bootable USB drive?
It is very hard to see bent pins in the cpu socket , you usually have to use a magnifying galss to see the pins. All it takes is one. You can use a bootable usb drive but you said that the computer won't boot so you won't be able to get to the usb drive.
If you pulled the cpu out of the socket without releasing the lock then you most likely did damage something , you can't just pull the cpu out of a locked down socket without causing some damage to something. Maybe it wasn't the pins or the socket but it could be something that is near the socket. It does look like you tried everyhting.
No. The socket has upright copper pins that make contact with flat points on the underside of the cpu. It is a contact by touch not insertion (lol). Eack socket pin should look to align in a perfect row and column of the array. A pin can be off by a slight angle and mis-function. Since neither the old or new cpu works in the socket it does seem some damage was done.
Thanks Dogsnake and inzone, that makes sense and is more likely what my issue is, especially after the heat sink pulled it apart. I'm going to pull the mobo today and see if its anything I can fix, if not, time for a new mobo