Question about IBM NetVista M42 PC Desktop

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Jumper settings on 8307-48U mainboard

Doesn't IBM have documentation on jumper settings for service techs? If this is the case, none of my customers will ever buy IBM's in the future. I can go to Intel's website, ASUS's website, FIC's, Micronics, Compaq or HP (a little tough) and immediately download drivers and documentation. I need the jumper and Front Panel pinouts for this mainboard ASAP, anyone who can help I will greatly appreciate it. Thank you.

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Re: Jumper settings on 8307-48U mainboard

Have you loked at this page, apologies if no good, but there is a setup manual

Posted on Feb 12, 2007

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How can i reset my bios password ,logged out/dell computer

You can call Dell and they can reset the bios password for you. But if it doesn't have a warranty anymore you can simple open the casing of your computer and there's pin(jumper) on the motherboard that you can pull out and then put it back in. The password will be reset.

Oct 27, 2010 | Dell Dimension 4600 PC Desktop

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How to reset the BIOS password?

Resetting BIOS is relatively simple. Some Mainboards come with BIOS reset jumper however most of the cases is to remove BIOS battery similar to this

Make sure you remove the battery after you disconnect the power cord. Keep the battery out about 3 minutes and put back

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why are u trying to set the jumpers ? i should have thank u if u add some more details. all the jumpers onboard have their own purpose. look carefully on ur mainboard, u'll see the jumpers with their distinct labels.

May 05, 2009 | PC Desktops

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Need to bypass or hack the bios password for IBM X41 PC Desktop

okay guys i found i new way to reset the pass with only a screwdriver …
will try to make a site with a tutorial to reset the tmp chip .. i think it works on every ibm notebook
here is a picture from an IBM X41 tablet i reseted the pass today,r,470×470.jpg
you have to put the screwdriver between the 2 pins to contact them .. and now power on ya machine and go to the bios … you will receive a message with an security chip error or something like that
this chip was on the bottom of the mainboard … i think the T Notebooks (T40 , 42 , 43 , R50, R51 have the chip under the touchpad
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The same way to delet passwords on DELL (D610, D600, and many more)
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Mar 27, 2009 | IBM NetVista X41 PC Desktop

1 Answer

Computer will not boot to desktop

i) u said that your computer is going to safe mode menu, if it is really goes to safe mode, then try to click the safe mode option and see whether ur able to go onto the screen or desktop


   let us even reseting jumper that ur agent or customer rep told, if you can dismantle your computer on your motherboard u will have CMOSbattery(which is slilver , circualar, i think u knowit) , just remove it by screw driver gently and waitfor few 5 minutes and replace and close the tower....... and there is no need of resetting your jumper after doing(removing CMOS battery)


ii) if you are unable to go the desktop by clicking safemode, then there defenitely a problem with your OS or operating sytem 

 i would suggest u reload your OS or format ursystem or reload Windows XP or Windows Vista Freshly
 by tapping F11(incase of Vista) or F10(in case of XP) continously from the moment u power on ur system 
here we are trying to bring ur system back to your factory settings(getting the system back to day u got ur system)

but there is problem that u will loose all the data that is present on system(risk at ur own will), i.e., what every that is present in My Documents.....

 when you do this recovery(by pressing F11 or F10) you will get an option to peform NDR and DR in order to save datain my documents(NDR: non destructive recovery, DR  : Destructive Recovery...)
select NDR to save data in my documents.... only in case of XP 

Thanking you

M. Sridhar

Dec 31, 2008 | HP Media Center m1180n PC Desktop

1 Answer

Im looking for the jumper settings on a compaq motherboared. its a presario 7478

hello CAVdesert,
I don't think you ever have to change the jumper settings on the motherboard.You may need to change in few cases but otherwise, changing motherboard jumper settings is not recommended.
However, if you need to configure the jumper settings for your Hard Drive, CD/DVD Drive etc, Please refer to the following document.

Jumper Settings for the Installation of Hard Disks and CD, CDRW, and DVD Drives

Oct 12, 2008 | Compaq PC Desktops

1 Answer

I have bought two hitachi 160 GB hard drives and need jumper setting explained please

The usual jumper settings for a hard drive are:
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  • Primary

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Cable select means that the mainboard will choose whether to make the drive primary or secondary. Most mainboards today support cable select. And, most drives will have their jumpers already set to cable select. You can just have all your drives set to cable select, and the mainboard will take care of the rest.

“Primary” means first and most important. Think of the primary as the one that usually takes control of the cable and gets its way. The secondary is like a little brother who must usually wait.

You usually want your main hard drive set as primary, or set it as cable select and have the mainboard set it as primary

Sep 16, 2008 | Hitachi PC Desktops

1 Answer

Can't get pass the blackscreen password

That is the BIOS password

Using the Motherboard "Clear CMOS" Jumper or Dipswitch settings
Many motherboards feature a set of jumpers or dipswitches that will clear the CMOS and wipe all of the custom settings including BIOS passwords. The locations of these jumpers / dipswitches will vary depending on the motherboard manufacturer and ideally you should always refer to the motherboard or computer manufacturers documentation. If the documentation is unavailable, the jumpers/dipswitches can sometimes be found along the edge of the motherboard, next to the CMOS battery, or near the processor. Some manufacturers may label the jumper / dipswitch CLEAR - CLEAR CMOS - CLR - CLRPWD - PASSWD - PASSWORD - PWD. On laptop computers, the dipswitches are usually found under the keyboard or within a compartment at the bottom of the laptop. Please remember to unplug your PC and use a grounding strip before reaching into your PC and touching the motherboard. Once you locate and rest the jumper switches, turn the computer on and check if the password has been cleared. If it has, turn the computer off and return the jumpers or dipswitches to its original position.
Removing the CMOS Battery
The CMOS settings on most systems are buffered by a small battery that is attached to the motherboard. (It looks like a small watch battery). If you unplug the PC and remove the battery for 10-15 minutes, the CMOS may reset itself and the password should be blank. (Along with any other machine specific settings, so be sure you are familiar with manually reconfiguring the BIOS settings before you do this.) Some manufacturers backup the power to the CMOS chipset by using a capacitor, so if your first attempt fails, leave the battery out (with the system unplugged) for at least 24 hours. Some batteries are actually soldered onto the motherboard making this task more difficult. Unsoldering the battery incorrectly may damage your motherboard and other components, so please don't attempt this if you are inexperienced. Another option may be to remove the CMOS chip from the motherboard for a period of time. Note: Removing the battery to reset the CMOS will not work for all PC's, and almost all of the newer laptops store their BIOS passwords in a manner which does not require continuous power, so removing the CMOS battery may not work at all. IBM Thinkpad laptops lock the hard drive as well as the BIOS when the supervisor password is set. If you reset the BIOS password, but cannot reset the hard drive password, you may not be able to access the drive and it will remain locked, even if you place it in a new laptop. IBM Thinkpads have special jumper switches on the motherboard, and these should be used to reset the system

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Re:Bios jumper

Your computer is an IBM Netvista 8311.
This link shows ibm netvista 8311 motherboard diagram

The cmos reset jumper it is indicated on nr.10, alternatevely when you cannot find reset jumper on a motherboard you can pull out and put back motherboard battery

Best regards

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Hp d530c mainboard

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Jan 10, 2008 | IBM NetVista PC Desktop

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