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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5.1 3.5mm speakers into motherboard with stereo 3.5mm input

I have an Intel DQ670W motherboard, with 1 x Stereo Out 1 x Microphone In 1 x Line In 3.5mm on the rear panel, with Stereo and Microphone repeated on the front panel. I have some Logitech 5.1 ...
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60 views

Memory Runs at Flex Memory Mode

I had 4 GB RAM installed, running in dual channel mode. RAM: Corsair TWIN2X4096-6400C5DHX (CM2X2048-6400C5DHX) Motherboard: Gigabyte GA-EP45-UD3R Channel 0: DIMM1, DIMM2 Channel 1: DIMM3, DIMM4 ...
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Computer Freezes for some time after beeps from motherboard

I have Gigabyte 970a ds3 rev3.0 motherboard. While running some applications I hear some beeps and at that time my pc freezes but after few seconds it again runs fine. Can this happen because of a ...
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61 views

System doesn't function properly without hardware reserved memory

I've got a Foxconn Renaissance motherboard, and I'm using the newest supportable version of BIOS, 6GB memory, 2GB memory on my GTX760 graphics card, and WIndows 7 x64, Unfortunately, there's no ...
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2answers
26 views

What happens if use different ram chips?

I have an Asus M4A785TD-V EVO Motherboard. Considering this, What happens if I plugin 2 ram chips of different frequency and different latancies? Do both work independently at their respective configs ...
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40 views

Built a PC some months ago, facing automatic shutdown, temperature issue?

I built a PC some months ago, it worked fine, but now it's summer time and temperature is 45 °C here in Jaipur, India. When I start playing BF3 after 20-25 minutes my UPS starts beeping and system ...
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Received a RAMPAGE IV FORMULA MOBO. Possible CPU Socket problems

I recently received a Rampage IV Formula MOBO in a trade. From everything I read online this seems like a pretty nice piece of hardware. There's one thing I'm worried about though. It appears as ...
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58 views

Asus Z87pro: After re-install Win7 blue-screen on starting any game

Not my own rig, but that of a colleague. Asus Z87 Pro based gaming rig. 32 GB RAM, 2x Samsung 840 SSD, Core-I5 (4670), 750W Antec PSU, Geforce GTX 780. System has been stable running Win7 Ultimate ...
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Is clearing CMOS and flashing BIOS same operation?

My friends' desktop PC won't boot, shows nothing on display, confirmed that everything's working fine, but BIOS is corrupted..need to flash the BIOS using bootable CD/USB (Hiren's boot CD or Ultimate ...
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94 views

Is ~49 c is normal for motherboard idle temperature?

My motherboard model name is Gigabyte GA-78LMT-S2PT.It's normal idle temperature shows 49c.Ambient room temp is 30C. Idle CPU(AMD FX-6100) temp is 27C So ,my question is Is 50C too hot (for my ...
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What are the performance differences between PCI-Express x16 and x4

I have two PCI-Express x16 slots on my motherboard, but one of them only has x4 bandwidth. For passing through my graphics card to a virtual machine I need to use both slots and unfortunately, the ...
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40 views

Freenas box Motherboard sometimes does not boot from USB

I have a Freenas box that boots from a USB stick. It has been fine for a few years, but recently it has stopped detecting the USB stick at boot time and will not boot from USB. Instead it goes into ...
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48 views

Computer does not boot, often

I've ran into a issue with my computer that it does no longer reach POST, but simply powers on for a fraction of a second and powers off. But this is not always, some times it boots just normally and ...
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1answer
58 views

SATA 3 PCIe Controller working with decreased performance (slower than SATA 2)

After reading this question about maxing out an SSD I decided to do so myself. My mobo only supports SATA 2 and has two PCIe 2.0 x1 connectors (which promiss up to 500 mb/s). So after some searching ...
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27 views

CMOS failure MSI motherboard

I recently tried to get an old MSI P965 Neo motherboard working, but the cmos is getting cleared every time i boot the pc. I tried a new 2032 3v battery, but it still wasnt working. I can get into the ...
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33 views

To where on the motherboard (Asus Z87 Pro) do I connect the `+P LED` and `-P LED` wires?

I am connecting my tower (HAF 922) to my motherboard (asus z87 pro) and have a problem with these two 1x1 pins that I believe turn on and off the red LED on the front fan of the tower. My problem is ...
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62 views

Is my motherboard failing, or is there some other issue?

So, several months ago I put together my own desktop PC. I set up a dual boot to Windows and Ubuntu. Recently, without changing any settings or installing anything new, the wifi stopped working on ...
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68 views

Connecting mother board, power supply, and tower

I am working on putting together a desktop for the first time and and ran into a problem, I am not sure how to connect the fans that came in my tower, my power supply, and connect them all to the ...
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72 views

Is it safe to use a laptop with a dropped screw somewhere in the motherboard? [duplicate]

I had to completely disassemble a laptop to get at the hard drive. While I was taking the screws out, I dropped one into the closed part of the laptop that can't be accessed. The screw is floating ...
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11 views

SY-PEX24028 NIC is not detected by FM2A88X-ITX+ motherboard

I'm trying to use a SY-PEX24028 (PCI-E x1) card with my FM2A88X-ITX+ motherboard. I'm using my the board's only PCI-E x16 slot for the card. I have not been able to get it to detect the card either in ...
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30 views

Adding Extra 4GB Memory Module to 2X2GB

Can i add a 4GB Ram Module to my Intel P55 Chipset Motherboard which already has 2X2GB Modules(4GB).Will this cause any issues like timing problem? UPDATE: I have an intel DP55WB Board,it supports ...
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71 views

No display after removing Graphic Card

I have a MSI Motherboard on which ATI Radeon 5580 was installed and everything was working fine. Now I wanted to give my graphic card to someone else, but if I remove my Graphic card and use a VGA ...
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57 views

Can I use headphones to hear diagnostic beeps from the motherboard?

I've many times problems with the motherboards so when I disassembly laptops I prefer do disconnect the speakers, and use the headphones but I don't know if some sort of diagnostic beeps could be not ...
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1answer
19 views

different CPU speed after motherboard replacment

my CPU speed was 2.4 but now it became 2.00 GHz, my laptop is Acer Aspire 4736z, I replaced my motherboard with a different motherboard (all of them are design for the same laptop). this laptop has ...
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HDD Power Controller with API?

I just saw a new advertisement from Asrock. It said they created a "revolutionary" feature that their motherboards let users turn on/off HDD power (software-controllable). But this is basically what I ...
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235 views

Unknown CPU detected, Bios Update is Required to Unleash it's Full Power

I have Asus P5K SE motherboard i recently changer the CPUfrom core2quad to core2due after the change i got a message at the very beginning of the boot "Unknown CPU detected, Bios Update is Required ...
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55 views

Cannot read CPU temperature with HWMonitor

I bought a new MoBo and a FX4300 Black Edition along with a tower cooler. Looking at HWMonitor, my CPU has a temperature of about 10-20° C. This is just too good to be true imho. It even goes below ...
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Part Number for Motherboard ATX 24 Pin Male Header

The 24 pin ATX connector (male, housing) on my motherboard has been melted to the 24 pin connector from the PSU. I will be replacing the motherboard's 24 pin ATX connector myself, but am not able to ...
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51 views

What is required to reflash a Sony VAIO BIOS?

I have a US model Sony VAIO laptop whose motherboard recently failed. I purchased a replacement board of the same specification however I believe it has come from a Chinese model Vaio. The computer ...
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38 views

My motherboard will not recognize my harddrive

My brother's computer recognizes my hard drive, so I know it works, but my motherboard does not recognize it at all. My motherboard is an Intel D865GLC mATX and my hard drive is a Seagate Barracuda ...
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396 views

Preventing the power supply (PSU) from blowing the motherboard or vice versa

Problems with power supply and motherboard compatibility appear to be common. My power supply/motherboard nightmare Power Supply Too Big? Can a +5VSB supply rail value of 5.4V prevent a PC from ...
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My PSU 2x2 12v connector is reversed! Why?

The 4 pin processor core voltage connector on my PSU unit won't fit into the 4 pin socket on my motherboard! The pattern of rounded and square pins on the connector is the reverse of the pattern on ...
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1answer
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Do I need an external graphics adapter to use AMD X4 740 on FM2+ motherboards? [closed]

I thought I didn't need any graphics adapter because of built-in GPU. When I installed the CPU, pc didn't boot/beep. Now I see I need an extra graphics card and AMD X4 740 is not an APU, it's a ...
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HP DL380g6 server with graphic card powered by external psu

I have an old HP dl380 g6 server and I need to use it for renderings but I have one problem, some of servers don't have 6/8 pin power outs for graphic cards, mine don't have it too. With that in mind ...
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60 views

I burned out the USB ports — can I salvage the motherboard? [closed]

I had a general purpose computer ( no hardcore gaming and such, just some 3d modeling ) from ~2009, running windows7, quad core2 2.40GHz, 4GB Ram, motherboard GA-P35-DS3R. Yet I managed to connect ...
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Guess correct stable memory/RAM CAS?

I have several APACER 8GB UNB PC3-12800 CL11 but i could not find any document about correct CAS . Usually the CAS written on piece of paper which attached to RAM . Motherboard bios shows the part ...
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Motherboard BEEPS Code

I am using Gigabyte motherboard, today my PC suddenly when black and the beep sound begins. I tried to restart my PC, but when it try to boot into windows, same beep sound appear again. I have to ...
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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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21 views

two usb on motherboard, one on front

I bought a motherboard with two separate usb pinhead things (as in you need 2 cables to get two usb ports). The case I have (Cosair Obsidian 250d) has one big usb thing twice as thick to get two usb ...
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39 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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1answer
35 views

Asus MB memory error after turning on the computer

This is my pc's specs Asus-Z87-PLUS (latest bios and drivers) Core i5 4570 Crucial 8Gig DDR3 @1600 compatible with Intel's 8th series chip WD caviar green 1TB Sapphire ATI 7850 (latest drivers) ...
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0answers
68 views

Does a motherboard really limit the amount of RAM that can be installed? [closed]

I've got an Asrock N68C-GS FX edition motherboard, and its maximum reported RAM is 8GB. I would like to upgrade the RAM in my motherboard. Now, I've read that manufacturers only ever place the ...
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1answer
34 views

Does my motherboard support booting from SD card?

How do I check if my motherboard supports booting from an SD card? (In my case this is a Dell XPS 15 I bought sometime in 2010.)
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Dell laptop motherboard issue

I have a Dell laptop whose model number is Inspiron 1564.Its configuration is i3 processor, 4GB RAM and 320GB hard disk. Recently it was not booting up.I took it to the service center and they ...
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103 views

Motherboard has one HDMI port but supports three monitors. How can it?

I am looking at an Asus motherboard and it says : Integrated Graphics Processor Multi-VGA output support : HDMI/DVI-D/RGB ports - Supports HDMI with max. resolution 4096 x 2160 @ 24 Hz / 2560 x ...
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1answer
68 views

Laptop won't turn on after blank screen, possible motherboard damage

I have a Toshiba Satellite C660 which while I was using it the screen appeared to go blank and the machine (I think) died however both the charger light and power light remained turned on. I pressed ...
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2answers
57 views

What can cause my PC's voltages to be off?

I have recently started experiencing very strange issues on my self-built PC system. Although the system is still very speedy, it's very fluctuating now. This is most notable when using graphically ...
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Gigabyte GA-Z68X-UD7-B3 Motherbaord and Archlinux UEFI boot

Is it possible to UEFI boot Archlinux using the Gigabyte GA-Z68X-UD7-B3 motherboard with an SSD attached. I have tried several things specified on their wiki, including EUFI boot from a USB drive, ...
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109 views

Frequent BSOD and random reboots on self-built computer

Build spec: CPU: Intel Core i5-3350P 3.1GHz Quad-Core Processor Cooler: Cooler Master Hyper 212 Plus 76.8 CFM Sleeve Bearing CPU Cooler MOBO: Asus P8Z77-V ATX LGA1155 Motherboard Memory: ...
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Resetting Bios Password on ASUS Transformer T300L

So, I have a ASUS Transformer Book T300L. I usually set a pass on my BIOS just in case (I'm a paranoiac). This time I tried to set it, introduced it slowly to see I introduce it correctly, confirmed ...