MAXIMUM CPU FOR IBM M51 = Pentium 4 650
3,40 GHZ / 2M CACHE / FSB 800 / HT / SOCKET 775 ( SL7Z7 or SL8Q5 ) they take 84 Watt, by the way, change the power supply,with connections for Pcie x16 graph-cards ,like 800 Watt. HD cards are not supportet, Max.- card is ATI x1950 Pcie x16 512MB. Do not try the ATI 5450 will not work.
Processors:
DO NOT THINK ABAUT THE P4, 651 / 660 / or 661 ,will not work .( multiplier is 17 ) and not supportet by the mainboard and chipset.
SOURCE: IBM M51 ThinkCentre doesn t recognize 4gig installed memory
You can confirm this in the BIOS and i'm sure it will show 4GIG. Your Operating system maybe a 32 BIT OS, hence it will only show about 3... GIG. It's a limitation for a 32 BIT OS.
SOURCE: IBM ThinkCentre 8183 (M51) does not boot
The situation you describe is usually 1 of 2 things, Power supply (PSU) or Motherboard (mobo).
Situation #1: If you get a blank screen and no sounds or movement it either indicates that the power supply unit (PSU) has failed or something on the motherboard has failed, preventing normal startup. Fans are usually the first thing to get power, then the mobo for the Power on Self Test (POST).
Situation #2: You might get some power lights coming on and some fans spinning but the video output does not happen and normal startup sounds do not take place, usually indicates that motherboard is going out or has gone out. OR it may be due to a weak (damaged) PSU.
Always try a different power outlet that you know is working. (Eliminate the easy stuff first!)
If it is out of warranty, try opening up the case, with the power off, of course. Also take this time to inspect the capacitors on the motherboard (they look like tiny soda cans) and check for tops that are bulging, swelling or leaking anything. Capacitors should be perfectly flat on top. If you find these then your motherboard is bad (well technically the capacitors on your motherboard are bad). The bad caps will need replacing to fix (not a job for an amateur). If it passes the visual inspection then it may just be your power supply is bad. Notice that a bad PSU does not mean you are getting no power, just not enough to start and run the computer.
A few years ago a company stole the recipe for making capacitors and started making their own capacitors at really cheap prices. The stolen "recipe" was not complete and not correct so these caps started failing after about 2-3 years of use. Emachines, DELL and Gateway were the computer companies most affected by the bad capacitor issues, although any of the big companies could have the same problem. These bad caps also affected power supply makers.
Since you have tried removing components then it looks like you have narrowed it down to either the power supply or motherboard. If your motherboard looks ok and if you can get another power supply that has an output watts that is greater or equal to the one that you have, try replacing that first.
SOURCE: IBM Thinkcentre M51 - 8141 - 23U -Fresh install XP
try this link:
http://www-307.ibm.com/pc/support/site.wss/MIGR-58254.html
SOURCE: i have an ThinkCentre M51 8143-14U and i wish to
Laptop batteries are various due to the specifications when manufactures, you can refer to http://www.brilliantstore.com/laptop_batteries_ibm_lenovo.html. It might have what you need.
SOURCE: My ibm thinkcentre m51---8143 will not work with
If you are talking about bios settings, is your cmos battery dead?
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