Question about Intel Motherboard

1 Answer

Computer turns on but no display/cpu_fan slot not working.

When I start the computer everything starts up all fans the hd the disk drive ect.
The cpu fan only starts up when it is another slot the sys_fan in this case the weird thing is the cpu_fan slot has 4 pins and the sys_fan slot only has three.
I have resetted the video card, memory, cpu fan etc.
I have taken out the bios battery waited and then put back in.
I've tried everything else have been able to find on the internet short of putting a jumper on the cpu_fan slot because someone said the mobo wouldn't start up if nothing was plugged into that slot. I didn't try it because i do not have a jumper.
I'm really out of ideas other than taking it into a shop.
Any help would be greatly appreciated thank you.

Posted by on

  • Anonymous Jan 01, 2009

    Well even when i have it connected to the four pin the computer will still not boot up not even to bios so I can not check it.

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 101 Answers

The four-pin CPU fan connector is the same as the three-pin (red is for voltage, black is ground and yellow for the rpm reading) but also adds a blue wire used by some BIOS sets to adjust the RPM speed of the fan. The three-pin will fit into a four-pin connector without modification, using a jumper is DEFINITELY not recommended as it could short your board.

If your system has the four-pin fan, and it boots and runs without error, it may be that your CPU is running cool enough that the fan is not needed at the time. Check your BIOS for a hardware monitor to see the actual CPU temperature. Also, you may have added utilities in Windows to give the fan speed and CPU temperature in real time. You may also notice the CPU fan kicking in when doing CPU intensive operations (virus scans, etc.)

The four-pin fan would run from a three-pin connector but would always run at full speed because the RPM Adjust signal is not present.

Posted on Dec 28, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Gigabyte H55M USB3 Buzzing/Beeping problem.


Hello here is the homepage.

http://www.gigabyte.com/products/product-page.aspx?pid=3444#dl

The most common problem is a fan that's failing, or a wire which is hitting the fan blades. There are usually 2 fans: one for the power supply and one for the CPU. If one of these fails completely, its dangerous -- the computer can overheat and basically burn up.

Another possibility is a failing hard drive (the bearings can make noise).
This could also be the graphic card fan failing, or the powersupply fan
( Bad bearings )
If so, it must be renewed.
Try also to blow the case out for dust, with compressed air. ( if any )
Especialy the cpu fan.

Good luck

Oct 13, 2012 | Gigabyte Giga Byte Technology Ga H55m Usb3...

1 Answer

Continuous beep at startup, system respond very late. window aero says to disable it. disable or not disable problem remains same. after 10-15 minutes system gets normal


WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL.

http://www.kitchentablecomputers.com/static.php - rules



Make sure the computer turns on, if nothing happens (no lights, no sound, no fans, etc.) the computer has a power related issue.


Caution: Some of the below steps recommend removing physical parts within the computer. While in the computer it is highly recommend that you be aware of eloctrostatic discharge ESD and its potential hazards.


Remove new hardware


If any new HARDWARE has been recently added to the computer, remove that hardware to make sure it is not the cause of your issue.


If after removing the new hardware your computer works it's likely the computer is either not compatible with the new hardware or a system setting needs to be changed to work with the new hardware device.


Remove any disks or USB devices


Remove any disks, CD's, DVD's that are in the computer and if any USB devices (Ipods,drives, etc) are connected disconnect all of them as well. Reboot the computer and see if anything changes.


Disconnect external devices


Remove everything from the back of the computer except the power cable. Turn on the computer and see if it beeps normally. If the computer has never beeped keep the monitor or display connected to see if any change occurs.

Check all fans


Make sure all fans are running in the computer. If a fan has failed (especially the heat sink

fan for the CPU)

your computer could be overheating or detecting the fan failure causing the computer not to boot.

Check all cables


Verify that all the cables are properly connected at that there are no loose cables by firmly pressing in each cable.


All disk drives should have a data cable and power cable connected to them.

Your power supply should have at least one cable going to the motherboard.


Many motherboards may also have additional cables connected to them to supply power to the fans.


Disconnect all expansion cards

If the above recommendations still have not resolved the irregular POST, disconnect the riser board

(if applicable) and each of the expansion cards.


If this resolves the issue or allows the computer to POST connect one card at a time until you determine what card is causing the issue.


Disconnect all drives


If you were unable to determine by the beep code what is failing or do not have a beep code disconnect the

IDE,SATA,SCSI>

or other data cables from the cd rom and hard drive

and floppy from the motherboard.


If this resolves your irregular POST or generates error messages re-connect each device until you determine what device or cable is causing the issue.


In some situations it can also be a loose cable connection that causes the issue.

Remove the RAM


If you continue to to receive the same problem with all the above hardware removed, disconnect the RAM

from the Motherboard and turn on the computer.


If the computer has a different beep code or if your computer was not beeping and is now beeping turn off your computer and try the below suggestions.


Making sure to turn off the computer each time you're adding and removing the memory and then turning the computer back on to see if the suggestion resolves the issue.

Re-insert the memory into the same slot.


If you have more than one stick of memory remove all but one stick of memory, try rotating through each stick.


Try one stick of memory in each slot.

If you're able to get the computer to boot with one or more of the sticks of memory it's likely you're dealing with some bad memory.

Try to identify what stick of memory is bad and replace it.


If you're able to get memory to work in one slot but not another slot. You're motherboard is defective you can either workaround the issue by running the memory in a different slot or replace the motherboard.

Power cycle the computer


In some situations a computer may have power related issues often caused by either the power supply or the motherboard.


To help determine if this is the cause of your issue try turning the computer on, off, and back on as fast as possible, making sure the computer power light goes on and off each time. In some situations you may be able to temporarily get the computer to boot.


This should only be used as a temporary workaround if you're able to get this to work. Often this is good for users who may have not done a backup and need to get the computer up one more time to copy files before starting to replace hardware.


Disconnect and reconnect the CPU central processing unit


For users who are more comfortable working with the inside of their computer or who have built their computer one last recommendation before assuming hardware is bad is to reseat the CPU

by removing it and putting it back into the computer.

Bad motherboard, CPU, RAM, or power supply


If after doing all of the above recommendations you continue to have the same issue unfortunately it is likely that you have bad MOTHERBOARD,PSU,CPU and RAM


The next step would be either to replace these components or have the computer serviced.

If you plan on doing the repairs yourself or you are a repair shop it is suggested that you replace the Motherboard first, RAM, CPU, and then power supply in that order or try swappable parts from other computers.


hope this helps

Aug 03, 2012 | Intel Motherboards

2 Answers

I seem to have a problem with the power to my computer. After 2 days of searching all kinds of forums I still haven't found a solution. The computer won't power up, no fans are spinning, not a...


First remove the power plug from the smps and press the power switch few time and wait for few minutes the re plug the power connector to the smps and switch on the computer if you still dont have power then you will have to check whether the smps work to test that its not enough to test the voltage in the 21/24 pin you will have to short the green wire and the black wire and see whether the smps fan is working if the fan is not working then the problem is with smps

Jul 30, 2011 | ASUS Motherboards

1 Answer

I have a computer that would do nothing when turned on, including giving no beep codes. Everything seems to be getting power - the CD drive, CPU fan, and hard drive all start spinning. I disconnected...


One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect your hard drive

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your motherboard to your hard drive make sure they have a secure connection and are not faulty or just replace them there probably old and faulty

hope this helps

Dec 05, 2010 | Acer Motherboards

1 Answer

My dv6000 dont start . i have black screen with one long beeb and two short beebs


HI friend,

one long beeb and two short beebs Indicates a video error has occurred and the BIOS cannot initialize the video screen to display any additional information,some couse of that issue is New hardware conflicting with old hardware or New hardware conflicting with old hardware or Connections not connected or connected properly or other hardware issue.Best solution is
If any new hardware has been recently added to the computer, remove that hardware to make sure it is not the cause of your issue. If after removing the new hardware your computer works it's likely the computer is either not compatible with the new hardware or a system setting needs to be changed to work with the new hardware device.Remove any disks, CD's, DVD's that are in the computer and if any USB devices (ipods, drives, phones, etc)
before all that please
Make sure all fans are running in the computer. If a fan has failed (especially the fan for the CPU) your computer could be overheating and/or detecting the fan failure causing the computer not to boot.
If you continue to to receive the same problem with all the above hardware removed attempt to disconnect the RAM from the Motherboard and turn on the computer. If the computer has a different beep code or if your computer was not beeping and is now beeping turn off your computer and try the below suggestions. Making sure to turn off the computer each time you're adding and removing the memory and then turning the computer back on to see if the suggestion resolves the issue.
  1. Re-insert the memory into the same slot.
  2. If you have more than one stick of memory remove all but one stick of memory, try rotating through each stick.
  3. Try one stick of memory in each slot.
Thanks,

Please rate me.......

Apr 04, 2010 | HP Pavilion dv6000 dv6100 dv6200 dv6300...

2 Answers

Abit NF8 wont even post. I get beeps of 4 short repeating beeps, space, then repeat till I power down. DVD burner lights up, but not floppy, or hd


4 beeps means that a main timer on the motherboard is not working - board replacement time, as it is internal to one of the main chips on board.

Feb 17, 2010 | Abit NF8-V2 NVIDIA nForce3 Chipset 1600MHz...

1 Answer

P4M800Pro Intel Pentium 4


Sounds pretty much like a motherboard problem. The problem you describe sounds like a RAM problem, probably they are loose in the slot or not snuggled properly. However, since you seem sure its not the RAM, I would consider replacing the motherboard.

Sep 30, 2009 | Biostar P4M800-M7A Motherboard

1 Answer

No Post No Beeps just lights and fans


If the computer just turns lights and fans thats because you have a piece of hardware that is unable to start.

My guess is that you burnt one of the three:

The CPU
The Board
A Card attached.

Disconnect the hard disks and DVD CD drives
Try removing a ram slot at a time and keep trying, keep doing that for all the pieces until you have none.

If at the end (when you get to a part where you only have Board and VGA plugged the computer still doesn't boot up, the best sollution is to try these 3 on another pc to make sure they are faulty before sending them to vendor.

Good luck


Jun 20, 2009 | ASUS K8VSE Deluxe (K8VSE-DELUXE 10PAK)...

1 Answer

Motherboard problem..


It sounds like the front panel wire has either come loose from the motherboard or is plugged into the wrong spot. Recheck the motherboard to see if the wires are in the right place & not loose. Hope this helps.

Dec 27, 2008 | ASUS A8N-SLI Deluxe Motherboard

6 Answers

CPU fan fail or speed too low


Hi,

I bought the same motherboard this past year (used) and installed it with AMD Athlon 64 fx-57, Antec P180 case, 550 w power supply. I had the case cover off to check the fans when I first fired it up. The AMD oem cpu fan hesitated at power on for a few seconds, which worried me. It started spinning normally and I then shut the system down and waited a few minutes before restarting it. It spinned up fine so I put the cover back on. I started getting the same error you mentioned, so I updated the BIOS to 1013 version. That didn't solve the problem. I ended up disabling the warning in the BIOS as I got tired of seeing it, as I could see the fans were all spinning and the CPU temperature was at about 26 to 34 on cold boot.

I recently checked on this problem and seems many others with this board have this problem. One fellow said he mailed off a question the the problem to ASUStek and they replied that it is just a glitch, that the fan is "smarter" than the BIOS, as it will hesitate to spin fully at start up if the CPU is cool. The suggestion was to disable "Q Fan Controller" in BIOS. I did and don't get that warning.

As for the yellow question marks under manage in Windows, you need to install the drivers for all of those devices, and they will be on the disk that came with the motherboard. I use the latest drivers from the ASUS site, but the only one I couldn't install was the ACPI ATK 0110 Virtual Device that came out in 2007. When I try to unpack the .rar file it says Corrupt Headers and refuses to use the driver from that file. So, I use the driver from the disk.


Apr 12, 2007 | ASUS A8N-E Motherboard

Not finding what you are looking for?
Intel Motherboard Logo

Related Topics:

127 people viewed this question

Ask a Question

Usually answered in minutes!

Top Intel Motherboards Experts

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Tony

Level 3 Expert

2598 Answers

Sudeep Chatterjee
Sudeep Chatterjee

Level 3 Expert

3267 Answers

Are you an Intel Motherboard Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...