Northbridge cooling brings down CPU temp

[BiLLyXkiNG]

I put an old 486 heatsink fan on the northbridge and the idle cpu dropped to 25 C and the full load up to only 33 C. versus 27C and 37C. Has that been know to happen?? Seems weird that a 486 fan could do that. Right now I have my CPU o'ced to 1103mhz at 1.70v i'm in the process of burning it in. Just wondering.

[eobard]

Thats news to me. I'm gonna try that and see what I get.

[eobard]

Looked into it. I've a 486 fan on my video sink right now and it fits perfect. Tried to put it on the bridge and it fits terrible. If I do this it will require more effort than my aching shoulder is gonna let me give now. I'll probably give it a shot once this horrid rain leaves my area. Hope you don't mind the delay.

[BiLLyXkiNG]

OH i don't really care when I just want you to be able to find something so I don't seem crazy

[eobard]

Originally posted by BiLLyXkiNG
something so I don't seem crazy

Try changing your avatar! That'll help.:)

[BiLLyXkiNG]

I have to make my bold, mature political statements somewhere

[Despotes]

You didn't get your tax refund...?? :confused:

[Daniel ~]

Personally I try to show respect for dead presidents, I can't bring myself to, but I try LOL

[William]

I wonder if you are blowing some cool air somewhere and fooling with the CPU thermistor. They aren't that accurate, and it doesn't take that much to severly alter the results they give.

[BiLLyXkiNG]

I don't think that there is any way for extra air to be blowing on the temperature thiingy cause it's totally enclosed.

All that tax tax rebate crap you'll be paying for later anyway...

[William]

you would be suprised how easy it is. it isn't totally enclosed, their is a space for air to come in on the bottom of the socket, and probably in some other places too. If you put a fan to the back of the motherboard, you can cause a reported drop in temps in the neighborhood of 5C or more. The Glaciator will report temps 5C lower just with the pins rotated 90 degrees even though the real temp is still exactly the same. The Thermoengine causes lower temps than what you really get by blowing air directly onto the CPU itself and causing the ceramic to cool and causing a reported drop in temps while they are still the same. Those thermistors are easy to fool.

[The Overclocker]

mobo sensors are very easy to trick,like cooling the back of the cpu and stuff

[SteenkyBastage]

Originally posted by Would71
Double-check it with something like Radiate.

I had to add 2C to MBM's readout to more accurately reflect what Radiate said I should be getting. Now, with another change in that general area of the board, I'm getting proper readings again. Go figure.


I am wondering why you would alter what your reading is to match what radiate says it should be getting. that could throw everything out of whack! what if you had an improperly seated HSF and you adjusted it to match what radiate says it's supposed to do? do you adjust the temp every time you change something (go from radio shack goop to artic silver compound)?

I personally think that if you are gonna match it to something, you should probably try to match it to an actual figure you have taken from say...a temp reading from touching the core itself.

Not saying you're wrong, i'm just trying to figure out why you would do that...

[SteenkyBastage]

yeah, i follow how you do it. guess i meant to ask why? as i pointed out, you should be measureing the temperature, not trying to match it to what radiate says your hsf should do, right?

seems to me if you are gonna compensate you should compensate the temps to an actual temp reading from the core. not from a program that guestimates the temp under load from a c/w ratio.

once again, not saying you shouldn't. i'm just asking why the compensation to what radiate says as opposed to a more realistic temperature.

[SteenkyBastage]

Originally posted by Would71
What I fail to see is why you're making an issue of it. What does it matter if I have it reporting temperatures 2C HIGHER than what the motherboard reads? If anything, that's being safer than leaving the readings as-is. All the readings come out comfortably short of 50C no matter what.

i'm not making an issue out of you doing it, in fact i stated that i wasn't saying you were wrong. what i am trying to do is figure out WHY, since you are telling other people to do it.

and honestly, how often have you seen radiate hit the numbers right on the nose when comparing actual results with what the HSF company says it will do? also note that the c/w ratio will actually differ depending on the ammount of watts being thrown thru the system (not sure about aircooling, but it definitely changes my c/w ratio with watercooling).

what if someone goes out and matches their numbers up after they have improperly seated their hsf (or some other potentially dangerous problem) and fry their cpu cause they changed the temp readout to match what radiate says it should say?

and to clarify, i'm not saying what you did is wrong!!!! i just dont think it makes sense for all cases. in your case it was a minor change, as well as a raising of temp (from what i understand) so that MBM reports higher then your probe.

[SteenkyBastage]

if i'm not making sense to you, well then sorry. it makes sense to me. maybe some third party will come along and clarify for both of us.

also FYI, at default voltage and speed, my maze 2 waterblock gives me a .02 higher c/w ratio than when running it at higher voltage and speed. so plugging in random c/w ratio CANT be that accurate.

[SteenkyBastage]

uhhh...i said that it VARIED.02 c/w depending on the voltage and processor overclocked speed. EXACT same fans, waterblock, pump...EVERYTHING. only diff is going into bios and upping the voltage and processor speeds. PRESTO my c/w ratio is now .14 instead of the old .16.

so which of those two should i adjust? should i adjust the overclocked one to report higher temperatures because the non-overclocked one has a worse c/w ratio? or should i tell the un-overclocked one to report lower temperatures, because after all... i can get that .14 c/w ratio if i want to.

[eobard]

Ding ding! Both of you go to your respective corners and take a break, please. Thanks.

[SteenkyBastage]

thank you for showing me that i have no common sense, i will now add 3C to all my overclocked readings so that i may now obtain the elusive common sense. of course, i'll have to remember to remove the 3C when i go back to not being overclocked, but with my newfound common sense i'll be able to remember to do that each time!

[SteenkyBastage]

well according to radiate if i change it to the proper c/w ratio it's 3C for me and my 115 watt overclock. so in my particular case it's 3C.

i will now no longer respond to you until you decide to keep your feelings to yourself about myself and any other "jerks with no common sense".

[SteenkyBastage]

please refrain from slanderous remarks. this is supposed to be a forum for discussions and debates, not for personal cheapshots.

the first time you implied i had no common sense i made a joke of it and went along with you. second time you called me a jerk and i told you i wouldn't reply to any more of your posts unless you stopped and kept it to yourself about your personal feelings. you proceeded to continue a third time in an agressive manner and i do not appreciate it.

i am letting you know that the points i was bringing up were not intended on belittleing you or any such thing. if you DO decide you still need to take this past a debate and throw in the namecalling or whatnot, i WILL request that a moderator or someone with authority bring it to your attention.

[SteenkyBastage]

thank you for continuing on in the same manner. i will be glad to discuss or reply to anything you want AFTER you decide to change it back into a discussion rather then the name-calling match you are attempting to make it.

[Newbie_Doo]

I think what we have here is a failure to communicate. Would both of you please drop it for a while? There is no need for EITHER of you to get personal. I have read this entire thread and think that some fault lies on both sides. Time to play nice.

Anthony