OC'ing = dereasing stability?

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skier
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OC'ing = dereasing stability?

Post by skier » Fri Jan 18, 2008 10:01 am

my XP 2800 was at 178 FSB and stable when i first got it, but now its only stable at 175 or lower, is this because it is wearing out the cpu? or just because it was running too hot at that specific time(a 75-80o(that temp where IT is) room and playing TF2)

btw, in-case temps were pretty high that day, but Lightsmark and 3dmark01 froze'r up @176 a different day
-Austin
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Re: OC'ing = dereasing stability?

Post by Zertz » Fri Jan 18, 2008 10:08 am

If it ran at those temps for a while, I guess it's not impossible it decreased your overclocking headroom.

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Re: OC'ing = dereasing stability?

Post by skier » Fri Jan 18, 2008 10:17 am

well the average temps i get are low 40s(C) when it was at 178, but that day it was high 40s @ 175
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Re: OC'ing = dereasing stability?

Post by Methious » Fri Jan 18, 2008 11:19 am

I believe what he meant was that because it ran so hot for a while it might have decreased the over clockability of the chip. IE you used to be able to reach the higher FSB but because of the heat the processor was under for a while you can now only achieve the lower FSB. Not that I know that's the case just an interpretation.
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Re: OC'ing = dereasing stability?

Post by The Black Pumpkin » Fri Jan 18, 2008 12:01 pm

A general guideline for Athlon XP's is to keep them below 55c. They have a max stated temp of 85c, but that can still kill your chip. I wouldn't put mine over 50c, to be honest.
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Re: OC'ing = dereasing stability?

Post by maj0r_pawnage » Fri Jan 18, 2008 12:53 pm

what temps should intel chips be under

/me gets worried about the 1.47v running through his e6300 on air cooling
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Re: OC'ing = dereasing stability?

Post by DMB2000uk » Fri Jan 18, 2008 1:00 pm

I wouldn't like to put much more than 1.4v through it on air.

What cooler do you have and what temps are you getting?

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Re: OC'ing = dereasing stability?

Post by stev » Fri Jan 18, 2008 4:38 pm

DMB2000uk wrote:I wouldn't like to put much more than 1.4v through it on air.

What cooler do you have and what temps are you getting?

Dan

I agree with Dan. My Intel CPU in the sig is volted at 1.475. Going higher will not make anything better.
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Re: OC'ing = dereasing stability?

Post by Zertz » Fri Jan 18, 2008 6:42 pm

Methious wrote:I believe what he meant was that because it ran so hot for a while it might have decreased the over clockability of the chip. IE you used to be able to reach the higher FSB but because of the heat the processor was under for a while you can now only achieve the lower FSB. Not that I know that's the case just an interpretation.
Yeah that's what I meant, not sure if it's possible though.

Personally, I wouldn't run a CPU over 50C 24/7

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Re: OC'ing = dereasing stability?

Post by skier » Fri Jan 18, 2008 6:52 pm

its running 48C idle now, so im gonna check the cooler, see if its dusty
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Re: OC'ing = dereasing stability?

Post by maj0r_pawnage » Fri Jan 18, 2008 7:42 pm

PC Probe II says that @ 1.47V my CPU is idling at 47C, MB=40C, NB=40C, SB=39C cpu rpm=1928, i think this is because my window is closed and the ac is on so its pretty warm in my room(the pc is near the window and i usually open it all the way with the case door off so cold air goes in when im trying to max out OC on vid card/cpu)

aren't intels safe all the way up to 70Cish, and 85C is where they throttle to prevent damage? update, 3min after opening window temps are down from 47-48C to 35C and dropping lol, but soon after there is even a little bit of activity it shoots up 2-4C(or maybe because the wind stops blowing for a second lol)
Last edited by maj0r_pawnage on Fri Jan 18, 2008 7:54 pm, edited 1 time in total.
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Re: OC'ing = dereasing stability?

Post by stev » Fri Jan 18, 2008 7:54 pm

maj0r_pawnage wrote:aren't intels safe all the way up to 70Cish, and 85C is where they throttle to prevent damage? update, 3min after opening window temps are down from 47-48C to 35C and dropping lol, but soon after there is even a little bit of activity it shoots up 2C(or maybe because the wind stops blowing for a second lol)
You may have TWO problems.

One, the Intel CPU should not go above the rated max reference temp. Depending on the CPU generation and die type, many of the Intel's range from 65W to 89W max safe temp. You will need to extract the model code off of the Intel CPU you have and check out the Intel website for the exact match and limit numbers for a safe temp.

Two, do you have a pressure differential problem inside of your computer case? What are the fans doing in the case, where do they bring in air and where does the air leave. Also, do you know the fan RPMs for each too.
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Re: OC'ing = dereasing stability?

Post by maj0r_pawnage » Fri Jan 18, 2008 7:56 pm

well the pc is on the floor near a large window, and the case door is off so the wind blows directly into the case, and i have one 80mm fan on top to remove the warm air, and one sucking in the cold air from the window towards the ram/cpu and one blowing out air from the rear, all i know is my cpu is @ 1928rpm
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Re: OC'ing = dereasing stability?

Post by kenc51 » Sat Jan 19, 2008 8:57 am

skierkid450 have you tried reapplying some TM and re-seating the cooler?

The TM on the CPU may have degraded, especially if it's AS5.

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Re: OC'ing = dereasing stability?

Post by skier » Sat Jan 19, 2008 2:37 pm

well, i cleaned all my fans up, and the fins on the HS, and bent the pressure bar of it a little because the compound wasnt evenly spread, and threw on some additional AS5(where the pressure had made it "go away") and now its 10C colder @ 38C and in-case ambient temps are 3C colder, i still need to check the HS to see if it is more even, but that can wait
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Re: OC'ing = dereasing stability?

Post by Methious » Sat Jan 19, 2008 9:44 pm

Not to hijack or any thing but has any one tried the Artic ceramic to see how it compares to AS5? I've noticed some times AS5 after time gets stiff enough to yank the cpu out of the socket if your not careful.
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Re: OC'ing = dereasing stability?

Post by skier » Sun Jan 20, 2008 7:04 pm

im all set with my AS5, i did some more adjustments to my HS and now, the max temp in Superpi is 43C in a 70F room :) looks like i can the OC again 8)
-Austin
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Re: OC'ing = dereasing stability?

Post by kenc51 » Sun Jan 20, 2008 7:14 pm

Methious wrote:Not to hijack or any thing but has any one tried the Artic ceramic to see how it compares to AS5? I've noticed some times AS5 after time gets stiff enough to yank the cpu out of the socket if your not careful.
I use it on my GFX card & Chipset as it lasts longer, performance wise AS5 beats it by about 2C. I tend not to remove the heatsink on the grx card or chipset often, if at all.
skierkid450 wrote:im all set with my AS5, i did some more adjustments to my HS and now, the max temp in Superpi is 43C in a 70F room :) looks like i can the OC again 8)
Sweet!

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