Does OCing by bumping up the FSB produce less heat...

[troubledshooter]

than just upping core multiplier and voltage? I am still experimenting with my system (just found that by turning my fan upside down it keeps my system about 5 degrees C cooler!?!?!) and right now at core values my sys as below idles at about 4 above room temp, and is now at 35 after 20 min of RC5 running.

I originally figured I would forget about the FSB as Abit's soft menu makes it so easy to just adjust the multiplier, but my RAM is VERY good stuff, so I shouldn't have any troubles...right?

Any success stories about how to get the most performance with 100% stability out of this system WELL appreciated!


_________________________
Abit KT7
TB 750 @ ???
eVGA geforce2 MX
256 pc133 CAS2 (micron, the GOOD stuff)
12 x DVD toshiba
12x10x32 plexwriter
7200 RPM 20gb WD HD

 

[LXi]

I think it should be this way:

Increase voltage: highly increase heat
Increase FSB: increase heat depending on how much the FSB was increased
Increase multiplier: moderately increase heat

 

[troubledshooter]

That was a bit cryptic in terms of real-world results. It is about what one would predict, but what does it mean? See how fast you can go on your FSB then crank up the multiplier and voltage until you start having problems?

thanks again

 

[BigToque]

I heard that you dont generate any extra heat by overclocking the CPU (with either the multiplyer or FSB). You only generate more heat by adding more voltage to the system. If this isnt right please correct me.

eg

Celeron 300a @ 300 @ 2.0 V = 30 degrees
Celeron 300a @ 450 @ 2.0 V = 30 degrees
Celeron 300a @ 450 @ 2.2 V = 35 degrees

 

[GT1999]

Voltage adds the most heat, but to answer your question, overclocking anything adds heat. So, if you were to increase the FSB, you would be increasing the CPU as well as the motherboard's chipset, and many peripherals [usually], therefore you are creating more heat than just the multiplier. This is all, of course, assuming that the CPU is running at the same speed when the FSB is overclocked, as the multiplier is overclocked. (ie, you're comparing a Duron 600 @ 650 with the multiplier changed, to a Duron 600 @ 650 with only the FSB changed)

 

[troubledshooter]

ok...still haven't really heard what I was sorta looking for though. what is the accepted "best all around process" process for this? (By the quotes I don't expect everyone to agree, I just want to feel the subject out a bit)

thanks again

 

[kly1222]

I dunno....common sense tells me that the cpu should have the same temp....cuz no matter how you set it, it's still running at the same frequency (multiplier x fsb). However, a higher fsb may cause other components (ram, chipset, etc) to run a higher temp.

 

[Fandu]

On the temp question, no. Upping the FSB ups the Clock speed and clock speed is part of what generates heat.

The other part is voltage, ovisouly if you up the voltage, the heat output also increases.

 

[Warrenton]

Here is my personal opinion, get as high as you can with the FSB, then back that off and get as high with the multiplier. Then use both until you get the highest speed with still having an FSB increase. I get 402MB/s ALU 484MB/s FPU in sandra for my memory benchmarks. And guess what, thats with a VIA133A on 140Mhz FSB. I also have a long list of stuff that gets set with WCPREDIT

 

[BigToque]

troubledshooter

To try to answer your question... Overclocking your CPU by increasing your FSB will not keep your system any cooler then by overclocking your CPU by adjusting the multiplyer.

I would suggest that you keep your FSB at its default setting, and adjust your multiplyer. By adjusting your multiplyer you are overclocking your CPU, but you are also leaving the rest of your components at their proper speeds (AGP and PCI running at 66 and 33 MHz respectively).

If you try to push your FSB up, you will increase the speeds of the AGP and PCI busses. Your hard drives, pci cards and video cards may not be able to handle those higher speeds.

If you can manage to increase your FSB to 133MHz, then you should have no problems with your cards because they will be running at their correct speeds again. But I highly doubt you can push an Athlon CPU to 133 FSB.

 

[troubledshooter]

Very helpful. BTW what are all these new "golden", and "platinum" thingys ppl are being called?

thanks

 

[BigToque]

Its a status given to each member based on how many posts that user has made to the forums.

0 - Junior Member
20 - Member
200 - Senior Member
1000 - Golden Member
2000 - Platinum Member
3000 - Diamond Member
Mods Choice - Elite Member