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Modred189

Modred189

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Ok, so I cashed in on CompUSA closing and picked up a P5B delux for my e6300.
I am going to overclock it this weekend, and I have done my research. Here's my question.
So my CPU runs at a sock FSB of 266. My Ram, as listed in CPU-z, is also 266 (PC 4300).
As my research has led me to believe, and as CPU-z states, I am running, currently ast a 1:1 ratio.

However, this means that as soon as I increase the FSB, I will have to fiddle with my ram, correct? My Ram, is PNY optima, 2Gigs (4X512).

So should I OC the ram, or should I enter a multiplier?

Which is the least risky? (I cannot afford to buy new ram)

Idle temps at stock are 44C, at load 55-57C.
 
The compusa near me is closing as well but I found their motherboard selection pretty limited. I asked the rep for his cheapest 939 board and he told me that they only had one 939 board and it was some asus model for $230. Left the store after that.

On your second question, if you set the ram too high the board won't boot and I don't think you can damage your board by setting the fsb too high, only over-volting. Once it will no longer boot you just clear the CMOS and start over. But it's best to keep your ram at the speed its designed to run at and once you get the cpu to it's highest stable oc you can fiddle with the ram.
 
you should right away drop the fsb:memory divider to about half and the cpu divider to half and see what the max fsb you can reach with your motherboard. once you know that, raise the cpu divider back to normal and slowly raise the fsb until you reach the max. then set the ram divider so that it is running at 4300 speeds unless you want to overclock it as well. good luck!
 
ghost6303 said:
most imformative thread title ever
Click to expand...

That's what i was thinking- only with an "n" instead of the "m". :D

As far as i know, you can't increase the multiplier on that CPU any more, so your only option would be to increase your FSB speed, right? You could loosen the RAM latencies and increase their speed without increasing the voltage- could this 'damage' the RAM at all?
 
sumofatguy said:
you should right away drop the fsb:memory divider to about half and the cpu divider to half and see what the max fsb you can reach with your motherboard. once you know that, raise the cpu divider back to normal and slowly raise the fsb until you reach the max. then set the ram divider so that it is running at 4300 speeds unless you want to overclock it as well. good luck!
Click to expand...
SO, lemme recap in such a way that I know I get what you mean:
1:Change the FSB:mem ration to 1:2 from 1:1.
2: Increase the FSB as high as possible and maintain stability.
3: Leaving the fsb at this setting, set the divider to it's appropriate value. I assume this means that at 1:2, the highest FSB i can get is 532 (way higher than I am aiming, and probably higher than the board will allow). SO lets assume that the highest I can get is an FSB of 400 (2.8Ghz, seems a little low, but good for an example). SO at a FSB of 400/memory at 266 (400/266=) .665, or close to 2:3 as my new divider, correct? Would it be safer to go with 3:5 first, and then try 2:3?
4: Is there any danger to parts by changing the divider?
5: Once this divider is found, ease the FSB higher untill it is stable and maxed again (at this point past the 400MHz?)... this happens when FSB times the divider =266, correct?
6:What do you mean by set teh ram divider so it runs at 4300 speeds? (I am not going to OC the ram)

Thanks so much for the help!
 
Modred189 said:
SO, lemme recap in such a way that I know I get what you mean:
1:Change the FSB:mem ration to 1:2 from 1:1.
2: Increase the FSB as high as possible and maintain stability.
3: Leaving the fsb at this setting, set the divider to it's appropriate value. I assume this means that at 1:2, the highest FSB i can get is 532 (way higher than I am aiming, and probably higher than the board will allow). SO lets assume that the highest I can get is an FSB of 400 (2.8Ghz, seems a little low, but good for an example). SO at a FSB of 400/memory at 266 (400/266=) .665, or close to 2:3 as my new divider, correct? Would it be safer to go with 3:5 first, and then try 2:3?
4: Is there any danger to parts by changing the divider?
5: Once this divider is found, ease the FSB higher untill it is stable and maxed again (at this point past the 400MHz?)... this happens when FSB times the divider =266, correct?
6:What do you mean by set teh ram divider so it runs at 4300 speeds? (I am not going to OC the ram)

Thanks so much for the help!
Click to expand...
ok sorry, should have made it a bit clearer. this is the way I would do it:

1. set the memory speed to half stock setting using the fsb:mem divider
2. set the cpu divider to half as well (I don't know what it is for your processor... mine was stock at 9, so I set it to about 5)
3. incrementally raise the fsb as high as possible maintaining stability (you now know the max fsb the board can handle)
4. put the cpu divider back to stock and fsb back to stock
5. incrementally raise the fsb as high as possible maintaining stability (you now know the max the cpu can handle)
6. set the fsb:mem divider so the ram is running at 4300 speeds.

ok for example (I don't know how intel boards/clock work, so I will use an AMD example), say you have ddr400 ram (=200mhz), and the max cpu overclock you found to be fsb=300. to have the ram running at 200mhz with the fsb at 300mhz, you would need to use a 2/3 divider. same thing goes with your overclock. once you have the max cpu overclock figured out, set the fsb:ram ratio accordingly to have your ram running at ddr2 4300 (533mhz) or as close to as possible

hope this helped a little... I haven't overclocked a c2d so I just gave you the 'procedure' I use for s939 ocing.
 
sumofatguy said:
ok sorry, should have made it a bit clearer. this is the way I would do it:

1. set the memory speed to half stock setting using the fsb:mem divider
2. set the cpu divider to half as well (I don't know what it is for your processor... mine was stock at 9, so I set it to about 5)
3. incrementally raise the fsb as high as possible maintaining stability (you now know the max fsb the board can handle)
4. put the cpu divider back to stock and fsb back to stock
5. incrementally raise the fsb as high as possible maintaining stability (you now know the max the cpu can handle)
6. set the fsb:mem divider so the ram is running at 4300 speeds.

ok for example (I don't know how intel boards/clock work, so I will use an AMD example), say you have ddr400 ram (=200mhz), and the max cpu overclock you found to be fsb=300. to have the ram running at 200mhz with the fsb at 300mhz, you would need to use a 2/3 divider. same thing goes with your overclock. once you have the max cpu overclock figured out, set the fsb:ram ratio accordingly to have your ram running at ddr2 4300 (533mhz) or as close to as possible

hope this helped a little... I haven't overclocked a c2d so I just gave you the 'procedure' I use for s939 ocing.
Click to expand...
It's helped a lot get me into the mindset. I'm just having trouble locating these options in my bios. Once I get there, i should be fine. I think the problem is that they call it different things and show it differently.
for example, I cannot find a place that has the 1:1 divider listed so i can change it...
 
The only way to overclock your system is by using an X6800 CPU with an unlocked multiplier. All other cpu's require that the FSB be changed.

Your RAM won't allow you to do much. Try it. But I doubt that it will overclock.

This is the reason why people buy 800 and 1000 mhz RAM
 
Modred189 said:
It's helped a lot get me into the mindset. I'm just having trouble locating these options in my bios. Once I get there, i should be fine. I think the problem is that they call it different things and show it differently.
for example, I cannot find a place that has the 1:1 divider listed so i can change it...
Click to expand...

it won't say in your bios "fsb:ram", but it should say something along the lines of 'ram speed 400mhz (fsb)' or something like that. In my bios, I have the options of 'ram speed 200mhz (fsb) or 180mhz (fsb*9/10) or 160mhz (fsb*4/5)' etc...

orion23 said:
The only way to overclock your system is by using an X6800 CPU with an unlocked multiplier. All other cpu's require that the FSB be changed.

Your RAM won't allow you to do much. Try it. But I doubt that it will overclock.

This is the reason why people buy 800 and 1000 mhz RAM
Click to expand...

Isn't that what the divider is for? he said he doesn't want to overclock his ram. so run it on a divider
 
yeah, but some of these boards won't allow you to choose a divider lower than 1:1
 
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