Cpu Fan and Case fan Help Needed

[Jaypeg]

Hello all.

I have an old Socket 423 P4 running at 1.8 Ghz. Windows XP Home Edition.

I have noticed that my cpu fan and my case fan NEVER run. I leave the computer on pretty much all the time with a shutdown for 24 hours once every 2 weeks. My BIOS does not list Temperatures (unless i am missing something, but I have been through it with a fine tooth comb, I think) So I installed motherboard monitor and My sensors are reading 30/39 degrees Celsius respectively. From what I gathered these temperatures seem to be acceptable, but, shouldn't the fans be running anyway?

I am not a gamer, I use the comp for graphic design and recording. Nothing I run seems to raise the temps significantly only a degree or so.

i guess my second question, dependant largely upon the answer to the first would be, are the fans burned out, they are connected via 3 pin connectors to the motherboard, is it possible the voltage regulators are shot?

Without an answer to my concerns i had begun looking for a new cpu fan, without even knowing whether it was a fan issue, and i discovered that socket 423 processors don't seem to be supported by anyone anymore only 478. If my issue IS fan related could I fit a 478 heatsink and fan onto my 423 considering the difference is only a few pins?

[Cricket]

Are you 100% sure the fans aren't spinning?

Cricket

[Jaypeg]

Yes, I have been running the comp with the case open and next to me for about three weeks so I can visually monitor the situation. This all seems weird to me, so I need someone else's take on this.

[Cricket]

Are the fans plugged in? The CPU heatsink fan should be plugged into the motherboard (CPU FAN) and the case fan could either be plugged into the motherboard or directly to the power supply.

Cricket

[Jaypeg]

They both are indeed plugged in, cpu fan is in fan 3 slot on MB and Case fan is in fan 4 slot on MB. This is how it came from the factory, it is not a custom build.

Are you thinking something inparticular (imparticular sp?)?
It has me stumped. I am wondering if the fans are set to only come on at a certain temp, but I have never seen that before and my BIOS has no temp or fan functions so I don't know how to check. I checked the motherboard manual and it was useless.

[Cricket]

What brand computer is this?

Have you tried moving the power connector for the CPU fan to another header?

Cricket

[Jaypeg]

It is a Micron Millenia Max.

No I have not. I will now and I will let you know.

[Jaypeg]

Cricket,

I am sorry for wasting your time here, I feel a bit foolish now, after a little in-depth searching on specs for this motherboard, it turns out the cpu and case fans will not run until the temperature reaches 36 degrees celsius, and considering I operate at a steady 30 degrees, I have answered my own question.

I apologize for wasting your time when a little searching on my own was all i needed.

Now for my other question, can I fit a 478 heatsink and fan on a 423 if I wanted to change fans for the sake of changing fans?

[blue60007]

That's seems odd, as the Skt 423 CPUs ran very hot.

[vanquished]

Haha,
Your all rookies in fan terms.
I have 16 fans.
Yes I am an idiot, but what the hell. Got nothing better to do with the space. Also it does serve a purpose on my computer. it really would get hot but operates at around 28 degress celsius.

That was simply a fun little tid-bit. Nothing of real importance just thought you might find it funny. My friends do.
- Jack

[Jaypeg]

Isn't that a little counter-productive? Wouldn't they be adding heat with all those motors, just blowing hot air around?

[blue60007]

They'd only be efficient if they were creating good airflow...they wouldn't if they were just blowing every which direction...I saw an article where they put fans all over the case, and it actually ran hotter than if you just had one rear fan.

[vanquished]

my fans are both induct and "outduct" fans. they all go in a specific direction keeping the heat away from the cpu and video card. As you all know a fan cools something by passing colder air over the hotter item thus transfering the heat from the item to the airflow. My fans come from the outside goind in a stream and the rest shoot out.
In the end its like this
8 Fans are controlling the "stream of air" and 8 take the air from the case.
- Jack

[MaxRat]

Is that a case for the hearing impaired....? or does it come with accompaning ear protection....

Really thats cool.....But I prefer as little fans as I can get with as little noise as possible...2 fans placed in strategic places will more than do the job....

I only have 2 fans in the lower window side (92mm) that blow on the video card and H/D...when room temps are 68deg F my cpu temp is in the sig....

Alot less strain and heat out of the power supply...

[vanquished]

Haha Yeah, certainly the 2 fans are better.
I didn't actually need to put the fans on.
I saw a deal for 10 fans for 10 dollars and did it. so what the hell i thought. Plus you cant beat a 28 degree celsius mb temp. and a 35-40 deg celsius cpu temp.
Right?
- Jack

[cuog]

Originally Posted by vanquished Haha Yeah, certainly the 2 fans are better. I didn't actually need to put the fans on. I saw a deal for 10 fans for 10 dollars and did it. so what the hell i thought. Plus you cant beat a 28 degree celsius mb temp. and a 35-40 deg celsius cpu temp. Right? - Jack

never breaching 36 with the comp in my sig and 4 case fans

Its also about turbulence you fans are creating a constant flow in conflicting directions whenever air colides with itself it causes friction and heat and it creats more heat when hitting solid object, the motors get hot which is then blown all over the place, also if there are more exhaust than intake fans or visa versa then there could be problems with are getting compressed and becoming stagnant or for the air to be too thin to absorb heat and move it out of the case



Now for the actual question at hand why do you want a new HS yours seems to be doing fine?

Also to check and see if your temps are correct with speedfan i would recomend that one day when the computer has bee under heavy strain check and see if the HS is hot to the touch or if it is just warm depending on what the temperatures say, if its cool and the CPU temp is high then there might be a problem w/ the HS and if the opposite happens then the temps may be a little off and you may want to connect one of the fans directly to a header from the PSU

[Jaypeg]

Thanks for the help, I am not so much concerned with replacing the heat sink yet, but this whole situation I thought I was having has led me to wonder how I would replace it if it did become necessary. So if anyone knows whether socket 478 and 423 heat sinks are interchangeable please let me know.

[MaxRat]

find one for a 478 or 423 and they will say all cpu's they're compatable with....

[Jaypeg]

Yea,
I've seen the specs for them, however, it seems as if 423 is a forgotten socket and isn't mentioned on anything. I search for socket 423 hs and fan and it brings me to pages full of 478's so I am now posing my question. I would assume that no one is sure enough to answer, if anyone could have answered it, I was sure it would be this forum, but you have all been a great help regardless. You have all inspired me to do my own build.