overclocking and FSB:DRAM ratio

May 19, 2010 at 14:30:17
Specs: Windows XP

i have a pentium 4 , 3.0ghz with HT, socket 775 prescott, i OC it with my motherboard biostar P4m890-m7TE, to 3.38ghz
the FSB whent from 800 to 900mhz

in cpuz, says that the FSB:DRAM is at 3:4
is it ok like that, or i should change it to 1:1?
and if so, how can i do that? im kind of new to OC

See More: overclocking and FSB:DRAM ratio

Report •

May 19, 2010 at 15:19:12

"FSB:DRAM is at 3:4 is it ok like that, or i should change it to 1:1?"

The Pentium 4 is a highly inefficient CPU. Running the RAM frequency faster than the CPU frequency partially makes up for that inefficiency. A ratio of 3:4 is what you want for an 800MHz FSB P4, overclocked or not. In other words, your settings are fine.

Report •

May 19, 2010 at 15:34:51

thanks for the reply, one more question
what can i do to get more performance?
to overclock it i whent to bios and raised the cpu frequency from 200 to 225, i havent touched nothing more.
im using this p4 for gaming, actually performing good, but i wish i can get more performance by changing settings or OC

Report •

May 19, 2010 at 17:05:06

You can try 230, 235 Mhz, etc. But; at some point you're gonna need to up the vcore to get it to run. As fsb and vcore goes up, your already hot running processor is gonna run hotter and hotter.

You using a temp monitoring program now? Do you have the motherboard manual and done any research on overclocking this motherboard/processor combination?


Report •

Related Solutions

May 19, 2010 at 17:56:50

no i havent done any research, just read some topics on forums,
the motherboard manual doesnt offer any help about the oc,
i tried to do 32m test with wprime with my current settings (900mhz fsb)
and the highes temperature was 51ºC (in the test)
idle its 39ºC the lowest
i would apreciate any help in improving performance to safe levels, winouth harming processor, because if it screws up, i got no money to buy a new one.

btw: i whent from 225, to 235, and windows became unstable and it froze up, i wasnt unable to boot up the pc till i reseted bios, is 225 the limit? or i did something wrong? i havent touched Vcore option, because im afraid of frying my processor.

Report •

May 19, 2010 at 18:42:39

Boards based on VIA chipsets don't offer the greatest performance & the UniChrome onboard graphics just plain suck. Hopefully you're running a PCI-e gaming card? If not, that's what you'll need for better gaming performance.

As for overclocking, I just downloaded the manual & had a look. There's a separate 40 page PDF just for the BIOS. You need to disable both C1E & Spread Spectrum, & lock the PCI-e at 100MHz. And you should be raising the CPU frequency is smaller increments...don't jump from 225MHz straight to 235MHz. But if you don't have a decent gaming card, none of this is gonna help.

Report •

May 19, 2010 at 18:51:09

my graphics card its an ATI radeon HD 3650 pci express
spread sprectum was disable and locked
i havent checkec C1E yet.
and ill do small increments has you suggest.
i shouldnt touch vcore right?

thanks for the help i really apreciate it.

btw, i wanna increase performance, because i tested my graphics card in anther PC with a dual core, obviousy dual core is way better than P4, and my card increased in game like 20fps
(call of duty 4)

EDIT: i did everyting u told me, c1E and spread are disabled, and pci its set at 100mhz i raised from 225 to 230, running at 3.45ghz

Report •

May 19, 2010 at 19:16:20

The HD3650 is definitely better than the Unichrome, but it's not much of a gaming card. As long as you stick to older games at lower resolutions & low quailty settings, the performance will be acceptable.

Report •

May 19, 2010 at 19:22:13

so its useless oc'ing my processor? i should reset to normal settings?

just by giving an example i can run battlefield bad company 2 at 20-30fps with highest settings at 1024x768, so i whanted more boost from my p4

Report •

May 19, 2010 at 19:45:09

No, you can leave it overclocked. Raising vcore many cause higher temps but P4's don't fry from heat. They'll begin to throttle back around 75°C or so and eventually just shut down.

Once the processor cools off, the machine will operate normally again.


Report •

May 19, 2010 at 20:10:09

"so its useless oc'ing my processor?"

I'm not saying that, but gaming relies heavily on the graphics card. As long as you keep the HD 3650, you're pretty much stuck in the 20-30 FPS range (depending on the game).

Best Graphics Cards For The Money: April 2010

Best Graphics Cards For The Money: May 2010

NOTE: if you don't have a decent power supply, your best bet is the Radeon HD 4670.

Report •

May 19, 2010 at 20:37:09

ok thanks, do you recomend me to continue oc'ing?
if so, when should i stop? because i dont expect a 30fps increase in games, but at least a 10fps increase.
because if there isnt going to be any improvement im oc'ing for nothing, i am right?
btw, how should i raise Vcore?
thanks for all replys.

Report •

May 20, 2010 at 06:03:00

You're not getting it. Overclocking the CPU will increase overall system performance, but it will only have a minimal effect on the FPS in games. It wouldn't matter if you overclocked to 5.0GHz, you still need a better video card.

Report •

May 20, 2010 at 15:17:56

thank you for your help, one last question (i promise lol)
how should i raise v core, and if i should.

Report •

Ask Question