cpu fan noise - pc freeze

[odyseas]

cpu fan makes horrible noise after 10-20 min.i replased it still the same.replaced psu and graphics card,no difference.it posts no bluescreen.intel pentium 4 3mhz m/b asrock socket lga775 2g ram.normal temp 30-35c normal speed fan up to 1867.thermal paste was already applied on the new cooler.3fans inside win xp pro.dunno what else it could be m/b or cpu..?any ideas?

 

[ingtar33]

that is an ancient system. sometimes they just die.


frankly it sounds like your cpu is overheating. will it post at all?

 

[odyseas]

yeah...i know.
but i have a 10 year old pc still running and i'm answering through it right now! i wanna know exactly what the problem is cuz i've been strugling with it for loooong!
it does post and -get this- temperature is regular!!!!up to 35C!so what tells cpu fan to run like hell at a moment and it wont stop for a few minutes, with new cooler it stands longer.i think its a virus...or m/b is dying or cpu but in that case i would expect blue screen (didnt have any so far)!if there was any i would search for the error like a maniac to figure it out.. :sigh:

 

[ingtar33]

quick question, in the bios is their any cpu fan options? it sounds like it's set to an agressive cooling profile. are you sure the cpu temps are being reported accurately? it could be a motherboard issue. have you tried to clr_cmos yet?

 

[odyseas]

cpu fan options are locked.i checked the temps with hw monitor as well, so im pretty sure about it.
also i noticed in bios i stopped the other 3 fans (not cpu fan) waited and pc froze at 51C, fan was speeding at 2000!when the problem occurs and the noise starts the fan is spinning at 1857,the sound is like a car is drifting!
i did clr cmos and took off the battery.
maybe its relevant maybe not but some times there were no display, so i changed the graphics card (i had nvidia geforce 6600 gt with just 2dvi-d) to an older one conncected to vga.

 

[odyseas]

hey do u think it could be the computer case's default circuit?(power switch)i;ll try with a different switch and see what happens

 

[ingtar33]

sounds like the motherboard is dying to me. i would definitely take the board out of the case and clean it corner to corner. atleast try that before throwing in the towel.

 

[odyseas]

i did that...
strange thing my previous pc also had m/b issues...
oh well..thanks for the answers ingtar33!

conclusion : older pcs last forever@!

 

[ingtar33]

haha! i've been working on old pcs for a long time. so i'm pretty familiar with those LGA775 motherboards. heck the pc i'm typing this on is an old p4, LGA 775 computer.