The motherboard or mainboard is the central printed circuit board (PCB) in many modern computers and holds many of the crucial components of the system.

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423 views

c000021a BSOD on Windows 7 boot

I guess I can't since I'm getting the error message: The version of System Recovery Options is not compatible with this version of Windows you're trying to repair. Try using a recovery disc that ...
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34 views

MemTest86+ bad adresses constant despite swapping sticks, processor/MOBO to blame?

(Sorry for the wall of text, but people seem equally critical of missing details) After about 2 years without trouble, I've been having issues recently with system instability, BSODs, random ...
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172 views

Why can't my ASRock N68-S3 UCC based machine access the full capacity of 3TB hard drives?

I recently bought a 3TB Western Digital Green internal hard disk, but discovered that I could only access about 768GB of the capacity on my current desktop PC. After some investigation, I've traced ...
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46 views

Computer won't power on

Was working fine for over a year, now won't boot. LEDs on the GFX card and one on the MOBO labeled PWR glow when plugged in, but nothing happens when I push power and shorting switch pins does nothing ...
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730 views

Random BSOD crashes when all RAM slots are occupied

Although I'm a long term user of other StackExchange sites this is my first question on SuperUser, so please let me know if I've neglected any community customs I am experiencing regular BSOD crashes ...
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223 views

How to diagnose issue between mobo, RAID, and SSD cache drive?

Background This issue is happening on my custom-built desktop. Relevant specs: Motherboard: ASUS P8Z68-V PRO Utilizing Intel RST technology (application that uses unused SSD as cache) Processor: ...
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1k views

Stop the constant random reboots of my GIGABYTE GA-B75M-D3V

I've got some issues with a new system. It's rebooting constantly. The system consists of a: brand new: Gigabyte GA-B75M-D3V with F9 BIOS (latest) Intel Core i5-3470 Ivy Bridge 3.2GHz 2x 8GB ...
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121 views

Computer motherboard failure?

So, I am pretty sure this will be a unique problem One of my fellow employees took a cable with a RJ-45 jack on one end, and a USB on the other and thought it would be neat to plug the cable into the ...
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368 views

new pc build— CDROM not booting

I've just finished a new PC build using a Gigabyte GA-970A-UD3 AM3+ motherboard and SATA DVDROM and HDD. I've set up the bios to use the following boot order: CDROM HDD I know that the CDROM drive ...
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130 views

ASUS laptop stuck in splash screen loop. Can't access BIOS with HDD installed

I have an ASUS laptop (model u56e, windows 7 64-bit) that is baffling me right now. I was recently on a trip, laptop working fine, though partitioned SATA HDD a bit overloaded with vacay pics. On way ...
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37 views

So-DIMM to DIMM adapter?

I have some nice 4GB SO-DIMMs from a broken workstation laptop that I would like to put to use in my desktop. Would this be possible? I did a bit of googling and found a SoDIMM to DIMM adapter on ...
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60 views

Motherboard restores corrupt BIOS on a regular basis

I have a pretty new PC and I am having issues with it since the beginning. The components are: Motherboard: Gigabyte Z87X-UD3H OS: Windows 7 64bit When I turn on the PC it runs OK, no problems, ...
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37 views

Do SSDs have to have AHCI to maximize performance?

After my last post concerning my motherboard's RAID, I'm considering purchasing an additional dedicated RAID controller, but I have a few concerns about what to buy, because I'm facing yet another ...
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66 views

Computer failing to boot using a graphic card with the driver installed

I'm having some troubles with my computer. Yesterday I had a bluescreen about some graphic driver dll and couldn't boot the computer back. I swapped my graphic card for a backup and could boot the ...
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44 views

Will this RAM work with my Intel mobo (DX58SO)?

I'm planning to add three DIMMS so I have 12 GB triple channel. Memory is: 4GB Module - DDR3 1333MHz Part Number: KVR13N9S8/4 Specs: DDR3, 1333MHz, Non-ECC, CL9, 1.5V, Unbuffered, DIMM, ...
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42 views

HP M2N68-LA Motherboard graphics

I have a odd problem that I can not seem to fix, I have a motherboard M2N68-LA (Narra Series) from a HP Pavilion and can not seem to get any graphics working. I have Ubuntu Server 13.10 installed, the ...
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96 views

Why does my motherboard with SATA 2 (3 GBPS) port / cable not properly read a SATA 3 ( 6 GBPS) HDD?

I've an old G31D-M7 motherboard which has 2 x SATA2 Connector. I recently got a SATA3 (6GBPS) HDD (Seagate Barracuda 500 GB - ST500DM002) but when I try to connect to it, it takes a long time to ...
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407 views

MSI Control Center doesn't save fan speed settings

My problem is that MSI Control Center, for fxa990-gd65 motherboard, doesn't save fan speed settings and resets them every time you shut down / restart the PC. It even has the save/restore settings ...
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37 views

Computer not booting

I've built a mining computer with an asrock h81 pro btc, AX 760 psu, Intel Pentium Dual Core G322 and 6* Gigabyte R9 270. I tried to boot it up without the graphics card. I plugged the screen directly ...
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700 views

asus motherboard: one long beep, 3 short beeps, one short beep

When my computer starts, monitor shows no signal, you can hear the computer trying to do something (almost sounds like starting a car with multiple tries). Then I hear one long beep, three short beep, ...
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149 views

Modify Windows 7 for unsupported motherboard BIOS

I have a board that supports only XP and Server 2003. It has been EOLed, so the manufacturer has not, and will not, update the BIOS for Vista and above. W7 has the Serverworks HT1000 chipset driver ...
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228 views

how to disable hard drives in UEFI bios?

sometimes I need to disconnect a hard drive. I have to open my computer and unplug the sata power cable. I am wondering if its possible to disable the hard drive in UEFI bios. I am using asus p8p67 ...
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143 views

PC won't start unless I reset CMOS

Situation: My PC is dead in the water. Both power buttons (Case/MB) have no effect. If I pull the power cable, reset CMOS, reconnect the power cable, then press either power button the PC fires right ...
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54 views

Power SW button doesn't work

Yesterday I built a computer myself. The computer is able to boot by pressing the power button on the mobo. However, the Power Button on the case isn't working. Everything is setup by following the ...
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27 views

Any guarantee that replacing the ATI graphic chip works

Im having a Dell studio 1558 laptop that was purchased 4 yrs ago and now im having a problem in booting the laptop.I gave it to a service center and they said some problem with ATI graphic chip and ...
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69 views

How do I find the storage capacity of the E²PROM chip on my motherboard? How much space is needed for UEFI to be implemented?

I'm looking at a solution for upgrading BIOS to UEFI on a motherboard that doesn't natively support UEFI. Another user, Rod Smith, replied to a question as to how this would be done stating: "It's ...
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28 views

PSU replacement made the whole PC fail

What happened is a long story, but I'll try to be as short as possible. My PC failed without warning yesterday, I suspected my PSU (an Antec HCG 520w), so I bought a new one (Corsair RM 650w) and I ...
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23 views

How to control PCIe power?

Is there any consumer-grade motherboard (for Intel i3/i5/i7 CPUs) that lets me physically power on/off PCIe slots? PCIe slots are on motherboards, so I guess a motherboard can easily power up/down ...
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112 views

Asus P8P67 PRO usb copy corruption and updating USB Drivers and chipset drivers

I'm running Windows 7 64 bit (updated all important updates yesterday) and have several external usb hard drives (self powered 3.5 inch). I recently noticed while copying files to the external drive ...
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47 views

Both nVidia GPU and Intel Graphics running on Gigabyte g1sniper-b5 motherboard

Does this motherboard supports "crossfiring" the two graphics adapters? I just wanna use both hdmi ports, one provided by the Intel CPU (Intel Graphics) and the nVidia one. Is this possible? Sorry ...
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134 views

Is my FRX780M motherboard compatible with AMD FX -8350 cpu??

Is my Acer FRX780M motherboard compatible with AMD FX -8350 cpu?? Do i need to upgrade my motherboard BIOS also? And if someone wants they could tell the process of changing to new processor..
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229 views

Geforce GT 630, driver kernel randomly crashes

My Pc specs are as follows Intel Pentium D 925 Presler Socket 775 LGA CPU 3.00GHz on a Foxconn motherboard Model 45CMX/45GMX/45CMX-K (Socket 775) i945P/PL/G/GZ Os Win 7 Ultimate I had a Geforce GT 210 ...
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187 views

Gigabyte Z77X-UD3H ATX Motherboard No Longer Recognizing USB Devices, Computer Inaccessible

around May I built a new computer with the following parts: Intel Core i7-3770K Quad-Core processor Corsair Vengeance 32GB (4x8GB) DDR3 1600 MHz memory MSI Radeon HD 7950 Twin Frozr III 880MHZ 3GB ...
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387 views

Monitor in power saving mode while CPU is still running

I am have a problem with my LCD going into power saving mode. It all started about three days back by randomly going into power saving mode while PC is smoothly running. Then the frequency of going ...
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161 views

Left half of the screen is moved to the right, right half is partially moved left and distorted, video card related issue?

Since yesterday, after about an hour the left half of my screen is moved to the right on my display, and the right half is moved to the left, and has weird flickering lines. Also since today there's a ...
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43 views

Computer's clock not running at correct speed, Trying to diagnose

I built a desktop just over a year ago, and it's been rock solid since then in Linux and Windows. However, two really weird problems have happened over the last few days. When I turned my computer on, ...
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139 views

Why is the Asus M5A99X mainboard power LED blinking without mains attached?

I have a M5A-99X Evo board by Asus. Recently, I found that the Power LED of the board is blinking in larger intervals (at least 1 minute dark, 1-2 seconds lit, then dark again; did not measure) even ...
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102 views

ASRock 4Core1600Twins-P35 SATA Error

I have one old ASRock 4Core1600Twins-P35 type motherboard. All the things work fine on it except SATA connectors. If I connect (to any of the connectors) one SATA HDD the system can't boot. It stops ...
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648 views

CPU fan runs only after removing “12 V power supply connection from motherboard” or HDD power supply"

My PC config (4 years old): Motherboard: ASUS M2N 68 - AM Plus CPU: AMD PHENOM X2 545. HDD: WD 320 GB RAM: 2 GB DDR2 800Hz Power supply: Intext 450W switching PSU About a month ago my PSU was gone ...
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327 views

My desktop won't boot or turn off, and there's no output - is it an issue with the motherboard or the PSU?

I have a desktop that won't boot, and the monitor doesn't turn on. The weird thing is as soon as you plug the computer, it turns on and then you can't turn it off. There's no light on the board to ...
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63 views

Monitor won't turn on

I have an Acer flatscreen that works properly (I've tested it), connected to a graphics card that also works properly (also has been tested), and still it does not respond when I turn the computer on ...
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0answers
35 views

Ongoing computer lock up issue

My system is as follows Phenom II 945 stock Gigabyte GA-M720-US3 Windows 7 64bit 4GB Crucial DDR 2 4-4-12 Palit Geforce 460 GTX Samsung spinpoint F3 500gb HDD 3.5 inch floppy drive (yes...I ...
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522 views

Intel dg41rq Motherboard not booting | is there anything else I can do to salvage it?

My computer was working fine for a while booting ubuntu off a flash drive. I finally bought a new hard drive and plugged it in. When I turned it on there were no beeps and nothing on the screen and ...
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98 views

Freezing on HP bios update?

So, my computer (HP Pavilion g7) has been funky for the past few days and it eventually got to the point of when I turned it on, nothing would happen, only the lights would flash. I left it alone for ...
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85 views

How to add extra sata drives to desktop server

I have an ubuntu 12.04 machine with a raid using mdadm. The motherboard has 8 sata ports which are all being used, and I would like to add more hard drives to it. What's the easiest/best way to add a ...
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175 views

CPU fan failing to start on boot sometimes

I have a fairly old desktop, which I like to use a fair bit over my newer PC's however sometimes on boot, the CPU fan fails to start. I had this problem previously, and I simply bought a new fan. I ...
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133 views

Need to use both button and paperclip on ATX connector to power the pc

I have some issue on a computer, and after several tests I found out that the only way to safely turn on the computer (otherwise it is dead) is to keep the paperclip on the atx connector and push the ...
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254 views

Computer only boots after connecting PSU PSON connection to motherboard PWRSW + ground

My server ( ASUS M3N78-EMH HDMI ) would not come back up after I put swapped some RAM. I got it back to work eventually but there is something strange: after a complete power off (pulling the ...
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99 views

Benchmark tool that brings GPU to maximum in order to diagnose defective PSU

I am currently trying to diagnose the following problem with my computer: Without warning or pattern the computer shuts down automatically, then restarts automatically and BIOS displays the following ...
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100 views

How to Perform Full Power Cycle on Reboot

Hopefully this is the place to ask this. My problem is that I have a PCIe device I'm trying to use on a home built computer. The card will only work on a full power cycle of the computer. I've tried ...