Pentium 4 Removed System Dead Help

[lobsta]

I disengaged the heat sink bracket on the top of the Pentium 4. When I realized this lifted up the processor I tried to reinstall the heat sink bracket and the processor. I powered on the system and it does nothing. If anyone out there can help me please do so Thanks

[rusty4x4]

Lobsta,

Removing the heat sink bracket should not have lifted off the processor. The processor and its 478 pins (or 423) are held in place by the Zero Insertion Force (ZIF) socket. It sounds like either an adhesive was used between the processor and the heat sink, or the ZIF was not engaged properly. But I can't say I've heard of a CPU sticking to the bottom of a heat sink, and I think a disengaged ZIF lever would stick out like a sore thumb.

One thing you might also want to check is whether there were some other power connections that may have gotten disconnected.

Hope this helps, and Welcome to Techimo.

[Foggy]

If you pulled the CPU out of the socket without lifting the release leaver you probably did some serious damage to the pins or in the best case scenario just a bent pin, if you have a good computer shop around take it in and have them check it out.

[nukes]

I had a similar thing happen to me. (Albeit with a K6/2)
The heatsink was stuck on top of the CPU (don't know how, It was using AS2) and when I removed the HS it ripped the chip out of the ZIF socket. (yes with the arm down)
Some time spent with a pair of needle nosed pliers sorted it out though.
I'm not so familiar with the P4 sockets though. However, you will need to lift the ZIF arm to reinsert the CPU, otherwise you're more likely just to mess all the pins.

[lobsta]

Thanks to all of you who have replied to my problem. I am still working on the problems so keep those suggestions coming
Thanks again for all the quick response and help.

[thekingofpain]

I had it happen with a P4---OE heatsink, pad removed w/arctic sil applied---it was never booted, not once---took it apart after a month to swap the heatsink and the cpu came with it---I thought the mb or the P4's socket was ruined, peeled the P4 off, cleaned it up re-applied AS and an Aeroflo and it ran fine---im positive it was assembled into the socket with the lever in its proper position---surprise-surprise...

[lobsta]

I am so happy that Ireceived everyone's help. The P4 was connected to the heat sink. I got it apart and got it installed. Yeah. It is now booting. Thanks to all of you for all your help.

[rEndEr_NANo]

Yup! that thing olready happen to me, just now, and dont know wat to do on how 2 remove the cpu from the heat sink, I fear of breaking the cpu if I forced it. anybody knows of a liquid or chemical to put in it to safely remove it from the cpu/heat sink?

[elroy]

I don't know if this is still done but in the old days companies used to glue the cpu to the heatsink. It was nearly impossible to get it apart. But this could only be done if the heatsink was small enoough to allow the lever to open and close with the heatsink on the cpu.

[Ken6PPC]

Originally posted by rEndEr_NANo
Yup! that thing olready happen to me, just now, and dont know wat to do on how 2 remove the cpu from the heat sink, I fear of breaking the cpu if I forced it. anybody knows of a liquid or chemical to put in it to safely remove it from the cpu/heat sink?

Plain 'ole rubbing alcohol will loosen the bond if it is from soemthing like Artic Silver. (Be sure to allow it to dry well before reassembly.)

If it is epoxied on, you might NEVER get it off.