Would you underclock your PC? Um, why? - Page 2

BBT · 8th December 2002, 2:02 AM

Quote:

Originally posted by eyeLikeCarrots

Let me see now... do you turn the sound on when you watch DVD's? THAT is my point... 2 of the main benefits of DVD's is the picture quality and the sound quality.... .... ....

You don't need that much cpu power to play divx's/dvd's.

Quote:

3 degrees has been quoted as an example temp drop when you undervolt.... does 3 degree's mean THAT much...

A quote yes. And no 3 degrees doesn't mean a lot to me. 10 degrees or more might.

Quote:

lets talk bug picture here....

Hey nice spelling there stevie wonder

Quote:

Question for the people who undervolt. How do you test stability of the cpu that you are running under manufacturers spec?

The same way you would a standard clocked system.

Quote:

Please also remember that under-volting is not the same as under-clocking

They go hand in hand. You underclock you can lower the voltage as well.

Bravo · 8th December 2002, 2:04 AM

Quote:

Originally posted by BBT
They go hand in hand. You underclock you can lower the voltage as well.

I do not believe that was the context carrots was referring to. Why use anything but default voltage for 1850mhz, if it does it at 1850mhz? Nobody would use 1.85v if 1.7v did the job. The idea Carrots was referring to was running either default voltage, or finding the sweet spot between heat output, noise, and speed.

eyeLikeCarrots · 8th December 2002, 2:10 AM

thanks bravo...

also, it might be VERY interesting to do an experiment on thermal outputs of undervolting vs underclocking... I'm assuming that the 2 combined would be better, but perhaps either one is better than the other...

hhmmmmmmm!

BBT · 8th December 2002, 2:15 AM

I know what context you were coming from, and yes I agree undervolting without underclocking doesn't really do much for reducing temps.

eyeLikeCarrots · 8th December 2002, 2:20 AM

Anyone in Tassie interested in running said experiment ???

Bravo · 8th December 2002, 2:38 AM

Quote:

Originally posted by BBT
I know what context you were coming from, and yes I agree undervolting without underclocking doesn't really do much for reducing temps.

Sorry, i did not mean to explain the obvious. Im tired.

Night.

Blandy · 8th December 2002, 2:55 AM

I personally haven't undervolted every but I thought this article might be useful

johan851 · 8th December 2002, 4:00 AM

Actually Blandy, that article is pretty interesting. However, I usually have music playing, and I run all quiet fans (21dBA Panaflo's, and a 7v Panaflo 120mm on my radiator - it doesn't make any more noise than my DVD drive, and still pulls about 66cfm).

Underclocking just doesn't make sense - might as well use quiet fans and get as much out of my hard earned $$$ as I can!

MiltonTheGoat · 8th December 2002, 12:51 PM

On a cool day, the benefits of underclocking and undervolting aren't there. It's on the hot days where it plays a hand.

If you have your fans running slow, and your CPU running full steam ahead with it's clock and voltage, the CPU will rise exponentially almost because the fan can't push the heat away.

In fact, it does HEAPS for reducing temps. If I ran my xp1700+ at default voltage, it's in the same boat as the paragraph above. The fan is running so slow and quiet, that it can't do anything for the CPU even at default speeds. The temperature will just keep slowly rising until it hits the trigger point for shutdown if it's under load.

Currently folding, my CPU is sitting at 36C. It's a cool day, however. Running at default clock, and default voltage, sitting idle in Winders, it would be low 40's. Folding for only a few minutes will see it rise steadily up past 50 and up to 60 where the computer will shut off (this is motherboard sensor, no CPU diode thingie).

I am contemplating getting a decent water cooling setup or something so I can run the CPU at ~1850 all the time at default voltage. But, for all the cost, and my lack of ingenuity, I may as well go the way of the P4.

Krypt0n · 8th December 2002, 1:01 PM

What if you're lucky enough to have a system setup that won't allow you to run at an FSB higher than 100mhz :/

I have an AXP 1700+, running at 11x 100mhz (1111Mhz) simply because its unstable at anything over 100mhz. And yes, my RAM is PC133.

phouseplus · 8th December 2002, 1:02 PM

Thanks for all the posts guys! Interesting responses for sure!
Chainbolt where are you, surely you can drop a though or vote on this thread..

View Poll Results: Do you underclock, undervolt your PC? Why?
Yes I do underclock and undervolt! Its cool!	5	9.80%
Yes I undervolt but don't underclock. Sheesh!	8	15.69%
Yes I undervolt and overclock! Now what!!	5	9.80%
NO I dont do that! This isn't UnderstockersAU!	33	64.71%
Voters: 51. You may not vote on this poll

8th December 2002, 2:10 AM	#18
eyeLikeCarrots Member Join Date: Jan 2002 Location: Canberra Is Shit Sex: Yes Posts: 3,791	thanks bravo... also, it might be VERY interesting to do an experiment on thermal outputs of undervolting vs underclocking... I'm assuming that the 2 combined would be better, but perhaps either one is better than the other... hhmmmmmmm! __________________ All your Carrotine are belong to me! \| Big O notation has nothing to do with Roy Orbison... Its not 'your' Internet! \| Follow me my children & FUM$ \| [Agg edit] count = 1 Internet Champion - fallen_dragon said so!

8th December 2002, 2:15 AM	#19
BBT Member Join Date: Aug 2001 Posts: 316	I know what context you were coming from, and yes I agree undervolting without underclocking doesn't really do much for reducing temps. __________________ OCAU Trade History \| Fold for OCAU (Team 24) to help fight disease and the Horde!

8th December 2002, 2:20 AM	#20
eyeLikeCarrots Member Join Date: Jan 2002 Location: Canberra Is Shit Sex: Yes Posts: 3,791	Anyone in Tassie interested in running said experiment ??? __________________ All your Carrotine are belong to me! \| Big O notation has nothing to do with Roy Orbison... Its not 'your' Internet! \| Follow me my children & FUM$ \| [Agg edit] count = 1 Internet Champion - fallen_dragon said so!

8th December 2002, 4:00 AM	#23
johan851 Member Join Date: Apr 2002 Location: Washington, USA Posts: 487	Actually Blandy, that article is pretty interesting. However, I usually have music playing, and I run all quiet fans (21dBA Panaflo's, and a 7v Panaflo 120mm on my radiator - it doesn't make any more noise than my DVD drive, and still pulls about 66cfm). Underclocking just doesn't make sense - might as well use quiet fans and get as much out of my hard earned $$$ as I can! __________________ [Abit NF7-S v2.0] [Athlon XP 1700+ T-Bred B] [2x256mb Corsair XMS PC3200 CL2] [ATi Radeon 128mb 9500-->9700 SoftMod @ 360/295] ANTEC CASE OWNERS/MODDERS MEMBER #23

8th December 2002, 2:55 AM	#22
Blandy Member Join Date: Aug 2002 Posts: 4	I personally haven't undervolted every but I thought this article might be useful

8th December 2002, 12:51 PM	#24
MiltonTheGoat Member Join Date: Jul 2001 Location: Mornington, 3931 Posts: 992	On a cool day, the benefits of underclocking and undervolting aren't there. It's on the hot days where it plays a hand. If you have your fans running slow, and your CPU running full steam ahead with it's clock and voltage, the CPU will rise exponentially almost because the fan can't push the heat away. In fact, it does HEAPS for reducing temps. If I ran my xp1700+ at default voltage, it's in the same boat as the paragraph above. The fan is running so slow and quiet, that it can't do anything for the CPU even at default speeds. The temperature will just keep slowly rising until it hits the trigger point for shutdown if it's under load. Currently folding, my CPU is sitting at 36C. It's a cool day, however. Running at default clock, and default voltage, sitting idle in Winders, it would be low 40's. Folding for only a few minutes will see it rise steadily up past 50 and up to 60 where the computer will shut off (this is motherboard sensor, no CPU diode thingie). I am contemplating getting a decent water cooling setup or something so I can run the CPU at ~1850 all the time at default voltage. But, for all the cost, and my lack of ingenuity, I may as well go the way of the P4. __________________ I'm faster than Sabine Schmitz.

8th December 2002, 1:01 PM	#25
Krypt0n Member Join Date: Feb 2002 Location: Brisbane Posts: 1,052	What if you're lucky enough to have a system setup that won't allow you to run at an FSB higher than 100mhz :/ I have an AXP 1700+, running at 11x 100mhz (1111Mhz) simply because its unstable at anything over 100mhz. And yes, my RAM is PC133.

8th December 2002, 1:02 PM	#26
phouseplus Member Join Date: Jun 2002 Location: California Posts: 167	Thanks for all the posts guys! Interesting responses for sure! Chainbolt where are you, surely you can drop a though or vote on this thread.. Last edited by phouseplus; 8th December 2002 at 8:44 PM.