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.

learn more… | top users | synonyms (1)

6
votes
10answers
7k views

How to troubleshoot a computer not booting up when powered on?

I can turn on my computer and sometimes it will boot up just fine. After a while of use, days or even a week, when I try to turn it on, it powers up, in that the fans spins up, the power indicator ...
9
votes
6answers
22k views

How does Motherboard and CPU affect RAM choice?

I am seeking advice on which memory to use with my motherboard and CPU. Below are my components and some relevant information extracted from their official websites. NOTE: Although this is a very ...
67
votes
13answers
310k views

Find out what the motherboard on my computer is

I want to find out the exact model of my computer's motherboard so that I can see what sort of memory chip, graphics cards and other components it supports. I'm using Windows 7 Ultimate 64-bit.
19
votes
3answers
5k views

What limits a motherboard from supporting more memory?

My specific question is with the ASUS M3N78-VM motherboard that my home server uses. I currently have 4x2GB installed for a total of 8GB but I was hoping to upgrade to say 16GB (4x4GB). The official ...
24
votes
4answers
18k views

Any way to tell apart a CPU defect from a mainboard defect?

I have a fairly modern desktop computer, an AMD Athlon II X2 based silent PC, that does not work. When turned on, it will start physically (all fans are rotating, disks start up...) but not give a ...
11
votes
1answer
4k views

What's the difference between SATA and SATA-II (3.0 GB)?

What's the difference between SATA and SATA-II (3.0 GB)? Specifically, if I'm shopping for a new (budget, so not new-new) motherboard, do I need to take into consideration if it supports SATA-II? ...
24
votes
6answers
8k views

Why should I install hardware drivers if my computer is working fine?

I've just installed Windows 7 on my PC. I went online to look for drivers. For my motherboard, Foxconn offers LAN drivers, on-board audio drivers, and chipset drivers. And for my graphics card, ...
1
vote
4answers
732 views

Is it possible (and safe/reliable/non-damaging) to use a 20-pin ATX PSU with a 24-pin ATX motherboard?

I have a reasonably-decent old 20-pin PSU which I want to use on a newer 24-pin ATX motherboard. I see that the ATX page on wikipedia mentions that 24-pin ATX is backward-compatible, and I can find ...
30
votes
14answers
35k views

What happens when more RAM is installed than the motherboard supports?

I have a free RAM slot and some spare memory that will fit my computer. However the problem is my motherboard only supports 2GB and I have 2GB installed. What would happen if I plugged the spare ...
5
votes
5answers
19k views

Can I use an onboard and pci vga simultaneously?

I have an old machine I'd like to get running with dual monitors. The pci vga only has only 1 output port. However, I have another output via the onboard video card. Can I leverage both video cards to ...
2
votes
2answers
3k views

Can I mix different RAM modules in PC?

I have 4 RAM slots on the motherboard P5K. At the moment I have two 1GB RAM modules and two 2GB RAM modules. Everything is working fine. Can I buy one 4GB module and put it instead of the 1GB ...
3
votes
1answer
194 views

Why does my computer beep when I turn it on? What are these beep codes?

Due to the amount of beep codes a PC can give, there are many questions on Super User about beep codes! I'm hoping this post will help to provide a community answer about all (dare I say all?) beep ...
3
votes
4answers
313 views

Switching motherboard without new install?

I need to replace my current motherboard with a new one, no other parts are changed. Must I format my harddrive and reinstall windows, or can I use the old installation and let windows install the ...
5
votes
4answers
4k views

low-power motherboard for windows home server

Firstly - I've used search, I've run through all the topics tagged with these ones, but couldn't find anything satisfying. I'm trying to build a home server machine, which should be a low-power ...
5
votes
7answers
3k views

high pitched whine from newly built PC

I've just built a new PC: Asus P6T Deluxe v2 motherboard i7 920 Sapphire HD 4670 Passive heatsink Corsair 620hx portal supply Antec P183 case Sometimes when I turn it on, there is a high pitched ...
4
votes
3answers
11k views

How can I fit 6 7970 Graphics Cards in one computer?

Okay, based on my previous question, it turns out I can find a motherboard to support 6 PCI slots and therefore 6 GPUs. But now I want to use 6 GPU's, specifically, the Radeon 7970. Obviously, they ...
3
votes
2answers
745 views

Raid 0 - what happens with the data when hdds plugged into another motherboard

I am buying a new motherboard Asus M4A785TD-V EVO to replace the Asus A8N32 which has recently went dead. The original motherboard has a NVIDIA NVRaid controller which I was using to strip (raid-0) ...
3
votes
4answers
10k views

Split internal USB pinouts - is it possible?

I've currently got a situation in my PC where I have 3 devices that connect to the motherboard via the onboard USB pinouts. The problem is, I only have two sets of USB pinouts on my motherboard. ...
7
votes
1answer
156 views

I have a 3.3Volt PCI ethernet card working on a 5Volt PCI slot. How is it possible?

This is the design for PCI slots: As you can see, there are 32/64 bits and 3.3/5 Volts. For what I know: 32 bits PCI cards can work in 64 bits slots of the same voltage. 64 bits PCI cards ...
4
votes
1answer
2k views

Which steps are needed to change motherboard on Windows 7 without reinstalling?

I am planning to upgrade my Sapphire AM2+ Motherboard (Chipset 780G) with a new MSI AM3 (Chipset 785G). I don't want to format and reinstall Windows 7. I have heard that with Windows XP is not that ...
3
votes
3answers
5k views

Is it better to have 4GB RAM in dual channel or 6GB as single channel?

I know there a lot of posts about ram but I'm still confused about it. I'm building a new system and because it was cheaper, I bought a 6GB kit from Corsair. So I'm wondering if I would be better off ...
1
vote
3answers
5k views

PSU failing or Mainboard failing?

I am having some troubles lately powering on my desktop workstation. While starting up the PC after being off for hours (usually at least 8 hours) it randomly fails to do so. What happens is that : ...
1
vote
2answers
891 views

System failure - need diagnostic recommendation

I have big problem with my computer. Configuration is: Intel i7 + 6x2GB OCZ DDR3 Motheboard: Asus P6T Deluxe V2, HDD controller configured to AHCI Main drive: OCZ Vertex 2 (SSD) - contains all ...
-1
votes
2answers
403 views

Upgrading motherboard without reloading OS

This question is an offshoot of soemthing I asked earlier: Disable "Auto Restart after BSOD" from Command Line Is there a way to wipe out current motherboard drivers on the HD so that you ...
2
votes
3answers
2k views

Role of Anti-static wrist wrap, Applying thermal solution , cleaning if spilled , and other necessary precautions, protecting your motherboard

Hello I am a newbie in computer hardware, I am little bit confused on How much Thermal Solution is to be used. Also where to put thermal paste on the heat-sink or processor or on both? I read there ...
4
votes
3answers
19k views

How to reset bios/rom to factory setting if computer do not even run

This is the continuation of How do I reset BIOS to user factory setting Things are working. I am finally able to login to windows. With a big cactch. I was concern I didn't flash my rom correctly. ...
0
votes
1answer
217 views

Asus P7P55D-E LX motherboard — over 16GB RAM?

We have a FreeNAS server with a P7P55D-E LX motherboard. We've added a lot more disk space since building, and need to upgrade the RAM. Specs say 16GB is the max ... (4x4GB) ... but is this true ...
0
votes
1answer
290 views

Can i use a SATA 6gb/s hard disk with a M2N68-AM motherboard?

So I have a M2N68-AM motherboard from ASUS: http://www.asus.com/product.aspx?P_ID=2UWzsrOiRbMPGYpw And I would like to buy this hard disk: ...
0
votes
2answers
5k views

Does a motherboard have to support 64-bit or is it just the CPU?

Do I need to have both components to support 64-bit, motherboard and CPU. Or is it just the CPU that matters?
8
votes
2answers
14k views

Is a DDR3 MB compatible with DDR2 RAM?

If a motherboard's specifications say it supports DDR3 SDRAM sticks, would I be correct to assume it is also compatible with DDR2 RAM? Am I wrong, or does it depend on the motherboard?
6
votes
3answers
9k views

CPU temp very hot in BIOS but okay in RealTemp/Speedfan

I just built myself a new i7 2600k system with an Intel DP67BA motherboard. Booted into BIOS and was alarmed to find Processor temp reported at 75 C, and steadily rising... sat there while it rose to ...
6
votes
7answers
2k views

Black Screen when Computer Boots

I'm having a serious problem with my computer; I think I've narrowed it down to the motherboard, but I'd like a second opinion before I spend the money. I have no idea what's wrong. Before I moved ...
4
votes
1answer
10k views

A PCI Express 3.0 Video Card into a PCI-E 1.0 x16 slot

Perhaps I'm trying to push my mobo too hard, but I think I have read that PCI-e 3.0 is back compatible to previous PCI-e specifications. But 3.0 into a 1.0, is it possibly asking too much? I'm ...
4
votes
6answers
9k views

I want to install more than the supported amount of RAM on my PC. Is it likely to work? [closed]

I have a Shuttle SG32G2 PC that I'm using as a small home server. It has two 240-pin DDR2 RAM slots, and officially supports 2GB per slot, for a maximum of 4GB of RAM, which I already have installed. ...
3
votes
2answers
3k views

Upgrading a motherboard and keeping old Windows 7 installation

I recently upgraded my motherboard from a Gigabyte 78LMT-S2p to a Gigabyte 990FXA-UD3. When I tried booting up Windows it blue-screened, and after some research I learned that it has something to do ...
3
votes
1answer
12k views

How do I interpret the Asus motherboard LED and beep patterns?

What are the canonical meanings of the different DRAM_LED, power button and beep patterns prior to BIOS POST on Asus motherboards? My manual and miscellaneous web searches have turned up nothing but ...
3
votes
0answers
465 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 ...
3
votes
1answer
2k views

Memory is being appropriated

I am having an issue with my motherboard "appropriating" memory. I have 2x2GB installed (exactly the same chips, brand new). The bios shows 4096 total with 1152 appropriated leaving 2944. When I only ...
3
votes
3answers
908 views

I can't update my BIOS because the current version is an empty string

I am using an Intel D945GCCR motherboard. I want to update the BIOS but the current installed BIOS has an empty string for the BIOS version which causes an error and prevents me updating. The error ...
3
votes
5answers
2k views

PC hangs with striped screen and then three long beeps on start-up

Recently the following thing happened to my PC a couple of times: Screen was as if covered with black and white stripes with a distinct square in the middle and the PC was not responding to input. ...
3
votes
3answers
2k views

Ethernet Port Troubles

A copy of an email I sent to company I bought my PC from last December. Does anyone else have any further suggestions? Basically yesterday my Internet connection went down, and my diagnosis ...
2
votes
1answer
2k views

How can i solve Intel Management Engine Interface driver error?

I have a Gigabyte GA-P55-US3L rev 2.0 mainboard after my windows 7 x64 installation i tried to install all the drivers from Gigabyte's site but i can't install Intel Management Engine Interface ...
2
votes
2answers
5k views

Gigabyte GA-Z77X-D3H MB problems

I installed a new system last week. I've some issues with it. The system consists of a: Gigabyte GA-Z77X-D3H with F9 BIOS (latest) Intel Core i5 3570K proccesor Sapphire Radeon HD7850 2x 8GB ...
2
votes
1answer
2k views

Can I insert a SATA II (3Gb/s) drive into a SATA 6Gb/s slot?

The general form of this question is "Can a SATA II SSD plug into a SATA 6Gb/s port on a motherboard?" I am looking into building a PC, but I would like to get an SSD for my OS and some programs that ...
2
votes
1answer
1k views

would ddr2 memory work in a motherboard with ddr3 standard?

I have a machine built with 4 x Mushkin Enhanced Blackline 2GB 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Desktop Memory Model 991599. I'm thinking of upgrading to an Intel iCore 7 CPU that requires a ...
2
votes
2answers
2k views

Is my new Graphic Card cause for my PC hanging?

My Computer Specification My Motherboard specification My new Graphic Card Some days ago I bought a GeForce 8400 GS Graphic card. My computer satisfied all the minimum system requirements it ...
1
vote
0answers
60 views

Mainboard beeping for error but running fine - beep codes corrupt?

I traded CPU, PSU and Graphics Card with a friend. When I took his parts and build my PC everything works fine. When We tried to put my parts in his PC, the Mainboard did a non-ending 2 tone siren ...
1
vote
1answer
68 views

Dont know where to connect HD AUDIO or AC-97, & USB

I'll provide pictures so you guys can see, but basically I recently bought a new case for my pre built Lenovo k330b. I cannot find how I'm supposed to position the connectors. Do I need to get an ...
1
vote
2answers
1k views

How to boot computer without any video card

I have a pc with centOs installed. I want to treat it as a server. Then I remove the video card from that pc , but I can never boot it again Motherboard: Gigabyte z77 d3sh CPU: Xeon e3 1230 ...
1
vote
2answers
675 views

Trying to install OS to new computer; Won't detect HDD

Mobo: Biostar th67+ CPU: i3 2100 GPU: Radeon 6850 (using integrated right now) PSU: Antec 400 Watts HDD: 80gb Deskstar IDE + external Seagate I am trying to install Windows 7. My problem is that ...