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Question about FSB

Q

quiksilverx181

2[H]4U
Joined
Nov 21, 2003
Messages
2,309
Well i got myself a 2.6c and im looking to bump up the FSB. I know its done in the bios, but how should i go about doing it. Do i need to mess with power, how high should i bump it up, and in what type of increments. I have sufficient cooling with 8 fans, my system runs at 26 degrees celcium with games running full force. Advice?
 
everyone screws up when they type, i think it's pretty clear he meant CELCIUS, and sorry, can't help u out, i know very little about anything but AMD cpu's. if i tried to help you oc your cpu, you'd probably wind up with it @ about a 50 mhz fsb and L1 cache disabled or some god-awful situation such as that.
 
Originally posted by eraser_16
everyone screws up when they type, i think it's pretty clear he meant CELCIUS, ...
Click to expand...
perhaps, if the 's' key and the 'm' key were not so close :rolleyes:
 
Originally posted by kevdog
perhaps, if the 's' key and the 'm' key were not so close :rolleyes:
Click to expand...

u know, those are actually 2 of the most commonly switched keys. good point however.
 
just crank your fsb till unstable..then crank voltage to get you stable :)
 
well how should i go about doing that safely. What are known normal ranges for both voltage a nd FSB ? give me a general range and how i should do it safely?
 
can we get back on topic, how should i go about setting my FSB higher along with voltage safely, i have read some guides and things i just wanted personal experiences
 
Bump FSB by 7, boot into windows, bump by 7 boot into Windows, repeat until you can't boot into Windows. Lower by 7, boot into windows and run Prime95 for 24 hours straight. If you end up with no errors you have a sucsessful overclock.
 
So which option do i choose in prime95, all i see is a blank window with options on top? Sorry for the newbie questions but theres always a first time

EDIT: Also, would my ram be able to handle the OC? its single channel 512 ddr with timings of 3-3-3. Is that ok?
 
Under the Options tab, select Torture Test to start it.

Your ram is PC3200, meaning it can run on an FSB up to 200MHz. I don't know much about Intel machines, but the speed your ram runs at depends on your dividers in the BIOS. (ex 4/3). Basically, your ram should be fine.
 
i know my setup would do much better under dual channel, but thats out of the question for another 2 weeks at least, so ima try it out. The fsb is already at 200, remember its a intel chip they usually come at 200, mines 200.5 mhz
 
Right, the FSB is 200MHz, but if your dividers aren't set up correctly, your RAM won't be running that fast. If you set up the divider to so the RAM isn't in sync with the bus, then you can increase the bus speed and your RAM won't be the bottleneck (at the price of a little memory bandwidth).
 
ok so how do i go about making sure my ram dividers and stuff are ok and not bottlenecking it up? (sorry for being newbie, first tiem for everything)
 
I don't know much about the finer points of overclocking intel boards, but I can get you started down the path.

Get to this screen in your bios:
10542575140XLd0UGHEg_2_2_l.gif

Change the DRAM Ratio from By SPD to 5:4 (CPU:DRAM). Then you can increase your fsb up to 250MHz and your ram won't be holding you back.

You should also loosen your ram timings. Get to this screen:
10542575140XLd0UGHEg_2_11_l.gif

Change CAS Latency to 3, Act to Precharge to 6, DRAM RAS# to CAS# to 3, DRAM RAS# Precharge to 3.

Once you get your fsb as high as possible, you can tighten up (lower) the ram timings a little bit and see if your machine stays stable.

Don't increase your fsb by too much at one time. Go slowly and see if the machine stays stable. If it is, go up a little more until you lose stability. Then decrease the fsb by about 5MHz and that should be pretty good.

I don't know much about intel overclocking, so take everything I say with a grain of salt. Have fun.
 
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