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Computer wont power up after graphics card inserted

Im using a lenovo thinkcentre s51 type 8171. trying to install a geforce 8500 gt. when i insert the card the comp. wont fully power up. it has power even the fan on the card is running but i get no monitor ,keyboard or mouse. all i do get is a series of beep sequences then nothing.

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  • deltasergean Sep 29, 2008

    its a 4-2-3-3 beep code

  • deltasergean Sep 29, 2008

    problem with this is there is no selection in this comps bios to turn off the onboard. i have looked doesnt seem to be anyway only selection is pci wich im not sure if that means it will try to start with pci slot or what but i have tried that aswell same results. i looked at user manual there is two possible aswers to the beep code 1 is screen retrace failed or the other all it says is that it is a fru/ and motherboard is the answer. for screen retrace failed i have no clue im fairly illiterate when it comes to computers the second would suggest i replace the mobo and that seems incorrect because everything operates correctly.

  • deltasergean Sep 29, 2008

    hmm thought i posted this but it must not have posted it turns out this comp was supposed to be shipped with a plastic bevel over the pci e express slot (though it did not) that prevents you from inserting anything except a pcie x1 ,then even the vendors website gave inncorrect spec on the machine. so needless to say time and money wasted due to inadequate informatioin from this comps vendor and i have to say the worst ever support i have talked too aswell

  • John Hong
    John Hong May 11, 2010

    Please describe the beep sequence


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  • 215 Answers

Remove the video card.
Boot the system and go into the BIOS
Set the onboard video to either auto or off, or in some cases you can change priority
Turn off the computer, reinstall the video card and give it a try.

Posted on Sep 29, 2008

  • John Hong
    John Hong Sep 29, 2008

    I agree, it is much more likely that this particular video card is not compatible with your motherboard. By any chance is the onboard video ATI?

    a thought, silly question but I have to ask - does this card require additional power and if so, do you have power going to it?


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How to install hdmi out on thinkcentre s51 8171

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I have a lenovo thinkcentre S51 8171 KUU. It was working fine until about a month ago, when it suddenly stopped working. The computer will power on, the fan will turn on, but the monitor will not display...



Aug 21, 2011 | Lenovo ThinkCentre S51 8171 PC Desktop

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I lost the password from my IBM ThinkCentre S51 (8171-CTO) Desktop Computer How can i clear the CMOS or reset the BIOS pass?? I want to make a new installation and I can make it boot from Cd rom

hi there,
if you have access to another computer and the internet, you can download software called password reset/recovery. these come with instructions on how to use. just use one of these to recover/reset your password and you should be able to access your computer again. Hope this helps :)

Jan 18, 2011 | IBM ThinkCentre S50 PC Desktop

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Computer would not come on when you press the power button and nothing works.

Bad Power On switch, or bad Power Supply.
(Weak voltage power rail)

The Power On switch is located inside the plastic Power On button.
This is an example of a generic ATX power on switch,

One that I have found fits many desktop computers.

There is a test to see if the problem is the Power On switch, or the Power Supply.

The test requires using a jumper wire on the ATX main power cable's connector.
Jump the Soft Power On wire (PS_ON) to ANY ground wire.

This is Lenovo Support, ThinkCentre S51 desktop computer, User Manuals, and the link to download the HMM.
Hardware Maintenance Manual.

Left-click on the top blue file listed.
Starts with - Hardware Maintenance Manual (HMM) (March 2009) Thinkcenter A51........and ends with S51 (type 8098, 8171, 8172, 8173)

Date to the right is 2009-08-05

On the next page look under the heading - File link, and click on -
19r0486.pdf in blue.

This is a PDF file. It may take as much as 30 seconds before you see the first page. Additional time may be required to fully download. Let the file download all the way before looking through it.
(Took 4 seconds to see the first page, and over 3 minutes to fully download just now. Medium speed DSL connection)

With this HMM you can follow along with illustrations, and details, as I detail how to perform the above test, on your IBM ThinkCentre.

(FRU = Field Replacement Unit)

S51 is the Product Model.
There are several Types.

Page 98 details how to open the ThinkCentre S51 desktop computer. ('Pizza-box' computer case)
(Types 8095, 8141, 8142, 8145, 8420, 8421)

Page 123 details how to open the ThinkCenter desktop Tower computer case.
(Types 8143, 8144, 8146, 8422, 8423, 8427)

Page 145 details how to open another 'Pizza-box' style computer case.
(Types 8098, 8171, 8172, 8173, 8424, 8425)

Computer unplugged from power, observe Anti-Static Precautions, BEFORE you reach inside.

Anti-Static Precautions:
Your body carries Static electricity.
Static will fry out (Short Circuit) the hardware components inside a computer.
Computer unplugged from power, TOUCH the metal frame of the open computer case. Touch an unpainted surface.

This action will relieve your body of Static.
Should you leave your computer in the middle of working on it, be SURE to Touch the metal frame again upon your return.

With the flat desktop models, ('Pizza-box') you may have to release the lock, and tilt the Harddrive, and optical drive up. (CD/DVD drive)
This will allow viewing the motherboard.

With the desktop tower model you may have to ease a few cables over to view the motherboard.

You are looking for the 20, or 24-pin ATX main power cable.
(Don't know if your model uses a 20-pin, or a 24-pin.
This is what you're looking for,

Scroll down to see the 24-pin ATX main power cable.
Look at the photo to the far right.
The Green wire is the Soft Power On wire.
ANY Black wire is a Ground wire.

With the ATX power cable plugged into the motherboard, as shown in the photo to the far right, you are going to insert a jumper wire down into the socket holes.

The jumper wire goes down in the socket hole, Right next to the wire that is in the hole.
It goes down in far enough to touch a metal terminal, that is at the end of the wire.
(Approximately 1/2 inch)

The jumper wire of choice is a paper clip straightened out, then bent into a U-shape.
The middle of the U is wrapped a few times with black plastic electrical tape.
(Trivia: One wrap of black plastic electrical tape is enough for 600 Volts DC)

The voltage you will be dealing with is 5 Volts DC.
Two D cell flashlight batteries produce 3 Volts DC.

You may wish to wear a glove on the hand that holds the jumper wire. There may be a small spark.
The Power Supply, (Computer), is plugged into power.

One end of the U-shaped jumper wire, is inserted down into the socket hole with a Green wire. (Right next to the wire)
The other end is inserted down into a socket hole with ANY Black wire.
The contact made is no more than 2 seconds. (1001, 1002)

If the computer comes on, (Power Supply actually), the Power On switch is bad.
If the computer does not come on (Power Supply), the Power Supply is bad.

It's an ATX power supply, probably a generic model made by Bestec, HiPro, Delta, or another low quality power supply manufacturer.
The Wattage is probably stated at Maximum 225 watts.

An ATX style Power Supply is used by over 80 percent of desktop computers out there. You can buy a decent one for around $30 US.
(Power Supply case size is approximately 6 inches Wide, 5.5 inches Long, and 3-1/2 inches Tall)

You can use a 300, or 400, or 500 Watt power supply.
Doesn't matter. Won't hurt the computer.

A computer ONLY uses the power it needs, and no more
Post questions in a Comment.


Oct 14, 2010 | IBM ThinkCentre S51 Intel Desktop PC -...

1 Answer

Ugrade Lenovo 8113 to GeForce 8500GT 512 -Problems?

Not a compatibility issues per se, but their could be a Driver conflict.

Install the Drivers FIRST, then power down, computer unplugged from power, observe Anti-Static precautions, and install the graphics card.

Plug the monitor into the graphics card, plug the computer into power, WAIT 1 minute, turn the computer on.

(The drivers are on the installation CD that comes with the Nvidia GeForce 8500GT graphics card. Just install the CD, and load the software. The drivers will automatically be loaded)

If you install a device first, (Such as a graphics card), Windows will break it's neck trying to find suitable drivers.
Windows will match up one of it's thousands of generic drivers.

Then you come along, and install THE drivers.

Driver conflict.
Windows: "Which drivers do I use? These or THESE?"

If you have already installed the graphics card, then powered the computer up, and installed the drivers, I suggest you do this;

Computer off, and unplugged from power. Open the computer case.
(I prefer to remove all cables to the computer, and lay it on it's side on a clean towel, on a table)

Observe Anti-Static precautions.

[Anti-Static Precautions:

Your body carries Static electricity.
Static WILL fry out (Short Circuit) the hardware components inside a computer.

You may not even see it, or feel it.

Computer on a table, computer unplugged from power, computer case open.

TOUCH the metal frame of the open computer case, BEFORE you reach inside the computer, or take a device out of it's anti-static bag.

Should you get up in the middle of working on your computer, and leave, upon your return Touch the metal frame again ]

Remove the GeForce 8500GT.
Plug the monitor into the Integrated Graphics of the motherboard.
(VGA port

Press the Power On button in, and hold it in.
Hold it in for a count of Five seconds.
(And I mean at least Five. Count 1001, 1002, 1003, 1004, 1005)

Let go of the Power On button.
Do this procedure two more times.

What you are doing is clearing CMOS Error Codes, and resetting BIOS back to the factory default settings.
One of which is Integrated Graphics.

Computer case open, cables plugged back in, computer in normal position.
Plug the computer back into power.
WAIT 1 minute, turn the computer on.

When Windows has fully loaded, go to Start>Control Panel>Add/Remove Programs.

Remove anything you see associated with the GeForce 8500GT.
(DO NOT remove anything in the Windows files. It's a separate section you have to go into anyway, but thought I would warn you in advance, just in case)

Restart the computer. (Start>Turn Off Computer>Restart)

Once Windows has fully loaded again, install the software off of the CD disk, that comes with the GeForce 8500GT graphics card.

If you are asked to restart your computer - No.
Close all windows, go back to your desktop screen.
Shut your computer down normally.
(Start>Turn Off Computer>Turn Off)

Unplug your computer from power. Observe Anti-static precautions. Install the GeForce 8500GT.
Plug the monitor into the graphics card.
Plug the computer into power.
Wait 1 minute, turn the computer on.

Everything works okay, close the computer case.

Jun 14, 2010 | Lenovo ThinkCentre® M52 PC Desktop

1 Answer

Will a EVGA GeForce 6200 work on an IBM think

The EVGA is nterfacePCI 2.1
The Lenovo 8171 has two PCI 2.2 slots
  • Slot 1: half length, 1 lane PCI Express (graphics)
  • Slot 2: full height, half length, 32-bit PCI 2.2 (5v)
I would say yes to this.

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don't bother trying to fix it, one of the semicondutors is partially blown out, you'll be just wasting your time and its just going to corrupt your operating system if you carry on trying to use it

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Are You sure the graphics card is not defect?
When I installed a graphics card instead of the onboard
circuit, the SIS Mirage was disabeled automatically.
I have installation CD for the graphics, of course.
Also, I thought that disabeling devices could be done
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