06-02-2009 04:53 PM
06-04-2009 09:00 AM
I too just had a J-Series 3000 Desktop system board go bad. It was purchased in December 2007 and has died already! I hope that an answer comes to this question.
I need advice how to get the system board replaced either way (or at least find out the cost).
06-04-2009 09:09 AM
I made some calls to Lenovo support, and they are no longer providing a replacement. The system board costs about $350 - there are many sources on the internet. You might want to look at getting a different board that will accept your processor - if you have a Pentium D (as I do) you may want to consider this one
Intel DG35EC Motherboard - Intel G35 Express, Socket 775, MicroATX, Audio, Video, DVI, PCI Express, Gigabit LAN, USB 2.0, FireWire, Serial ATA it is available from TigerDirect.com for $80
02-07-2010 09:40 AM
I'm a techie kind of guy. After Lenovo flatly refused to do anything about my MB, I figured it was dead anyway, so there was nothing to lose but some time. I removed the MB, took note of the capacitors which had bulged tops, and ordered replacement capacitors. In my case, the only bulged caps were rated 1000uF 6.3V. I ordered a dozen of those from an online electronics parts place, picking caps rated for computer/motherboard use. They cost $0.18 each.
After that I spent about an hour delicately removing the existing (presumably dead) caps and replacing them. In fact, I removed all of the caps with that value on the MB, domed or not. It's a delicate, skilled soldering job requiring a good, hot, well tinned soldering iron and a light touch. This is NOT a beginner soldering trick.
But I'm not a beginner at soldering. I got them all out without visibly damaging the PCB, cleared the holes with desoldering braid, then installed the new caps, taking care to get the + lead in the + marked hole.
It came back up the first boot.
This left me with a distinct bad taste in my mouth for Lenovo products and support, though. I use the machine as a tester, believing that it may die at any time.
11-03-2011 12:31 PM
I have seen two Lenovo 3000 J Series machines that would spin he fans on power up but did not complete POST. They both had a problem at the main power connector on the motherboard where the group of 5 volt line (red wires) at the top end of the connector had heated up due to a poor connection and oxidized the surface. Scraping the pins clean on the motherboard side proved to be at least a temporary fix.