Question about IBM ThinkCentre A50p PC Desktop

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Motherboard m51 view - IBM ThinkCentre A50p PC Desktop

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Here is the hardware guide which includes the motherboard.

http://download.lenovo.com/ibmdl/pub/pc/pccbbs/thinkcentre_pdf/39j7755.pdf

Posted on Jan 21, 2015

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How do I troubleshoot m51 pronto scooter. When I plug it in there is no lite and of course it does not run


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Invacare Pronto M51 Base Manual Online: Service Indicator Light Diagnostics. ... Invacare power wheelchair owner's operator and maintenance manual.

Dec 25, 2015 | Health & Beauty

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Need ethernet and mobo drivers


The i in i915p, and i915g, stands for Intel.

It is a motherboard chipset made BY Intel, for IBM/Lenovo.
HOWEVER, just as you suspected, the drivers are proprietary from Lenovo.

http://en.wikipedia.org/wiki/List_of_intel_chipsets#Pentium_4.2FPentium_D.2FPentium_EE_chipsets

Research has led me to conclude the Lenovo 29r8260 motherboard, was used in the IBM/Lenovo ThinkCentre M51; series of Desktop PC's.

Let's go see if this holds true, using the information we have.......

http://reviews.cnet.com/desktops/lenovo-thinkcentre-m51/4507-3118_7-31000439.html

Intel 915G motherboard chipset

http://www.ebay.com/itm/IBM-ThinkCentre-M51-Motherboard-3-4GHz-P4-HT-29R8260-8143-WMG-/360578959486?pt=US_Motherboard_CPU_Combos&hash=item53f42e487e

So far everything looks good.
One more thing to check.........
Go to Device Manager, and see if Broadcom is listed; under -
Network adapters.

(Using WinXP as an example,
Start > Right-click on My Computer > Left-click on Properties at the bottom of the list.
Left-click on the Hardware tab > Left-click on Device Manager.
Left-click on the + sign next to - Network adapter)

Conclusion?
If Broadcom is the name of the ethernet chipset, it will be in the Network adapter list.
If this holds true, then the following Lenovo Support website, for the ThinkCentre M51 is the one you want,

http://support.lenovo.com/en_US/downloads/default.page?selector=expand

Using the Ethernet driver as an example;

1) Click on - Networking: LAN (Ethernet)
2) Click on the blue - [+] Click for files

3) Click on the blue - Broadcom Ethernet driver and software.
(Or Download, to the right)
4) A small window will come up -
Opening q3etn12us13.exe
Click on Save File.

5) A small download window will come up.
Allow the file to download all the way, then DOUBLE-click right on the file name.

At the bottom of the next 3 small windows, click on -
Next, Next, and Finish.

If you are not asked to restart your computer, do so.
Close all windows, go back to your desktop screen.
WinXP: Click on Start > Turn Off Computer > Restart.

I'm sure you didn't need all that, but included just in case.

For additional questions please post in a Comment, or on Reply at the end of the solution.

Regards,
joecoolvette

May 09, 2013 | Computers & Internet

1 Answer

Need IBM motherboard 29R8260 front panel controls


John,

The front of your computer is the Front Panel.
The area of contact pins on the motherboard, that the main wires from the Front panel go to, is the Front Panel header.

What you need is a Front panel header pinout.

This I do not have. What I do have, is a simplistic method that may allow you to find out, what the pinout is.

http://www.ebay.com/itm/IBM-ThinkCentre-M51-29R8260-Socket-775-Motherboard-w-P4-3GHz-SL7PU-/390456414497?_trksid=p4340.m263&_trkparms=algo%3DSIC%26its%3DI%252BC%26itu%3DUCI%252BIA%252BUA%252BFICS%252BUFI%26otn%3D15%26pmod%3D260995444535%26ps%3D63%26clkid%3D1437936870868306373&_qi=RTM1062688

Looking at the Hardware Maintenance Manual for the ThinkCentre M51, (It also uses this mobo), the Front Panel header is to the right of the Ram Memory slots. (Processor to the left, Ram Memory slots at the Top)

Looking at the Ebay link, there are three views available. Click on the middle view. In the view photo the Front Panel header is the black rectangle below the Yellow ram memory slots.

Two rows of pins.
Power Supply plugged into power, use an LED light with two wires.
Go across the top row, and touch the first set of two pins next to each other.

No? Go on. Touch the next set of two pins. I'm willing to bet the third set of two pins is the Power On switch pins.
(Could be mistaken, however)

The contact made should be brief. The Power On switch is a Momentary Contact Switch.
Once the Power Supply comes on, wait a minute, then start testing the other pins.

LED light blinks? You have the HarDDrive activity LED pins.
LED light stays steady? You have the Power On LED pins.

Be aware however, that there may be 3 pins for the Power On LED.
Two Positive ( + ) pins, and one Negative ( - ) pin. This is for a dual color Power On LED. (Turbo mode/ Regular mode)
This would mean touching the first pin, or second pin, in the set of 3 pins, and the last pin in the set.

Computer restarts? You have the 2 pins for a Reset Switch.
(Do NOT touch the Power On switch pins again, or the computer may restart)

Not what I would like to state. Would like to state the exact pinout.
Perhaps if you get this figured out, you might take the time to post the pinout. Crude is fine, I can 'clean it up'. This way 100's to 1000's of people may be able to use your findings. Think how many people you would help.

Regards,
joecoolvette

Aug 19, 2012 | Computers & Internet

1 Answer

IBM ThinkCentre 8183 (M51) does not boot


I think it is more than likely your hard drive is the problem, you get the splash screen and everything is working up to that point which tells me the motherboard is fine.

Jul 07, 2012 | IBM ThinkCentre M51 PC Desktop

1 Answer

Is there a better motherboard for the ThinkCentre M51-8143 which supports FSB 1333MHz?


If it was me i would be replacing the case as well then you will have no trouble finding a motherboard to suit. Will also be handy for any future work you need to do to computer. I doubt very much your old memory will fit in the new motherboard so why not get your memory upto around at least the 4Gig mark while youre at it. All this really wont cost much and you will have quite a nice computer which looks like new. Cheers from Scott and please vote

Oct 21, 2011 | Lenovo ThinkCentre M51 8143 Tower P4 531...

1 Answer

Can the replacment of a cracked screen on a asus m51 be done at home by one self? asus m51 15.4 wxga lcd screen


sir to repair it on your own it can only repaired or replaced on asus service center

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I have an IBM thinkcentre m51 that I am trying to upgrade to a dual core processor. It seems that it won't take it. Is there a setting on the bios that will allow the motherboard to support a dual core...


Most major manufactures use motherboard designed to their specs and upgrades to the processor are limited. You can use software such as Belarc Advisor, to determine what motherboard you have and then you can search the net to determine what processors are compatible with it.

Nov 08, 2009 | IBM ThinkCentre M51 PC Desktop

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