Message-ID: <6490de09@news.ausics.net> From: not@telling.you.invalid (Computer Nerd Kev) Subject: Re: Thinkpad R51 not posting Newsgroups: comp.sys.laptops.thinkpad References: User-Agent: tin/2.0.1-20111224 ("Achenvoir") (UNIX) (Linux/2.4.31 (i586)) NNTP-Posting-Host: news.ausics.net Date: 20 Jun 2023 09:00:26 +1000 Organization: Ausics - https://www.ausics.net Lines: 28 X-Complaints: abuse@ausics.net Path: csiph.com!news.bbs.nz!news.ausics.net!not-for-mail Xref: csiph.com comp.sys.laptops.thinkpad:500 justaW wrote: > Does anyone know anything about a bad soldier on the R51? The model > number fully is R51 2889-CTO. > > I've done everything short of disassembling the device, but it will not > post regardless of if there is or is not the hard drive, battery, or CD > drive connected. I don't know anything specific about that, but my standard process would be to swap over the RAM in case that's the trouble, then swap over the CPU (in the case that I have a compatible spare and the CPU is socketed). If neither of those fix it, then frankly it's unlikely that any fault on the motherboard will be practical to diagnose and repair unless it's quite obvious, so I'd admit defeat at that stage. The only other thing is that I've had Thinkpads behave very strangely when their BIOS battery is nearly dead. I'm not sure if any were ever so bad as to just show a black screen, but if it's getting some way into POST and then stopping with a meaningless error or just no obvious reason, then I'd definately try it with a fresh BIOS battery if the voltage measures a bit low (buy a 2032 cell with solder terminals and solder it to the wires from the old one to save money). -- __ __ #_ < |\| |< _#