why does my computer make a horrible sound on bootup?

[shedokan]

when I bootup my computer I hear a horrible sound for about a minute and then everything is alright.
and my computer takes 3-4 minutes to boot!

is there a way to fix these problems or I need to buy a new motherboard.

[Mac Daddy]

Please provide more information on your system and how long has this been happening ?

[Midicow]

First off, always remember to unplug computer components you mess with, and ground yourself to a conductive metal. Also make sure not to put your components on surfaces that can potentially cause damage, and to never wear wool or other shock-conductive footwear.. hehe

Before this, make sure you have extra thermal paste you can re-apply to your heatsink and anything else you manage to take apart that uses it.

Take your heatsink off and use a can of air on it outside, throughly, then take your psu out of your computer (do not take it apart unless you lack a warranty on it!) and clean that out with a can of air.. On the psu if you do take it apart to clean it, any weird looking gunk is probably an insulating glue or some other part of the psu (Ie: normal.)

Finally repeat this with your video cards, then any other things in your computer that have a fan.

Make sure to blow some air under the exposed parts of the fans (if there are any)

Don't dis-assemble contained components (hard drives, psus, video cards, etc) apart unless you (all) A. Know how to put it together 100%, B. Don't have a warranty on it (or don't mind), and C. have a neutral, static-free surface to place the parts on.


This assumes that most of the moving parts in your desktop (if its a desktop) are fans.

If you have liquid cooling, unnecessary noise may be a result of a kink, air bubbles, a dying reserator/pump, or a fan in need of cleaning on the reserator. In all fairness, if its a liquid cooling and you put it together yourself, and it makes noise like that, then you need to try taking it apart and re-constructing it via the manual that came with it.

Also, Noise like that can be caused by your hard drive or other moving drives (like optical drives), you can try taking your drive
out if you have enough length on the power and sata/ide cables, and placing the drive on a flat, shock-neutral surface.

Observing to see if it makes the noise, you may or may not find the cause that way.

If you took your heatsink off, now would be a good time to clean the surface with a cloth and maybe some arctic cooling cleaner (not especially needed, but nice), And have a nice re-application.
Same with any other heatsink, video or otherwise.

Finally if you missed them, maybe your south bridge/north bridge on your motherboard have a fan, try cleaning that.

The key to this is localizing the noise, if you can figure out what is generating it, then you can figure out how to fix it.. usually either by cleaning, tinkering, or replacing.

If you cannot localize the noise, you're not trying hard enough .


ALSO, if the noise is electronic and not mechanical, it may be an old (pre 2004) PSU dying and emitting a weird high pitched electronic noise, if this is the case, immediately look into replacement.. Could potentially fry your components.

If the noise is coming from the PC speaker or other speakers, there may be a grounding problem.

I can't think of anything else right now, need more specifics.

[shedokan]

thanks for the giant reply, I will try your suggestions right when I will get the thermal paste and can of air.
and I think it might be coming from the little fan.

and I have a one core desktop.
here is information from cpu-z:

Processor(s)
Number of processors 1
Number of cores 1 per processor
Number of threads 2 per processor
Name Intel Pentium 4 640
Code Name Prescott
Specification Intel(R) Pentium(R) 4 CPU 3.20GHz
Package Socket 775 LGA
Family/Model/Stepping F.4.A
Extended Family/Model F.4
Core Stepping R0
Technology 90 nm
Core Speed 2394.1 MHz
Multiplier x Bus speed 12.0 x 199.5 MHz
Rated Bus speed 798.0 MHz
Stock frequency 3200 MHz
Instruction sets MMX, SSE, SSE2, SSE3, EM64T
L1 Data cache (per processor) 16 KBytes, 8-way set associative, 64-byte line size
Trace cache (per processor) 12 Kuops, 8-way set associative
L2 cache (per processor) 2048 KBytes, 8-way set associative, 64-byte line size
Chipset & Memory
Northbridge VIA P4M890 rev. 00
Southbridge VIA VT8237A rev. 00
Graphic Interface PCI-Express
PCI-E Link Width x16
PCI-E Max Link Width x16
Memory Type DDR2
Memory Size 512 MBytes
Memory Frequency 266.0 MHz (3:4)
DRAM Interleave 4-way
CAS# Latency (tCL) 4.0 clocks
RAS# to CAS# (tRCD) 4 clocks
RAS# Precharge (tRP) 4 clocks
Cycle Time (tRAS) 12 clocks
Command Rate (CR) 2T
System
System Manufacturer To Be Filled By O.E.M.
System Name 7255
System S/N To Be Filled By O.E.M.
Mainboard Vendor Micro-Star
Mainboard Model MS-7255
BIOS Vendor American Megatrends Inc.
BIOS Version V1.3
BIOS Date 01/29/2008
Memory SPD
Module 1 DDR2, PC2-4300 (266 MHz), 512 MBytes, unknown brand
Software
Windows Version Microsoft Windows XP Professional Service Pack 2 (Build 2600)
DirectX Version 9.0c

[belikethat]

is it a beeping sound from the motherboard?

[Falcone]

Probably ur bios fan

[shedokan]

I know what's the problem! it's the hard disc.
I got a lot of S.M.A.R.T notificatiopns on my hard disc situation.

and I don't hear beeping sounds but like trrrr...

[Mac Daddy]

Could be your HD it will spin first then your CD/DVD drive will read on startup.

What models of HD and CD/DVD ROM do you have ? And what type of S.M.A.R.T notifications are you getting ?

[shedokan]

I don't know my models of HD and CD/DVD ROM.
I am getting from time to time messages like:
"hard disc situation:bad. you need to backup and replace. press F1 to continue"

[Mac Daddy]

Originally Posted by shedokan

I don't know my models of HD and CD/DVD ROM.
I am getting from time to time messages like:
"hard disc situation:bad. you need to backup and replace. press F1 to continue"

That doesn't sound good .... go to start/control panel/system/device manager and open the disk drives tab it should list the model numbers of your drives.