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Deviders/Jumpers

post #1 of 8
Thread Starter 
As you all no that i have hit the top of my O/C while running 1.1 with my ram.

Now i here all the time people saying to add a jumper.
Which from what i here i can go higher in clock speeds.
I am Farley ((no i am)) new to jumpers so bare with me on this.
I am currently running 4 X 512MB Mushkin Enhanced PC3200 chips @ 242Mhz X 17
Now by setting a divider i can lower the 17 to another number which in turn will let me raise the FSB even higher then 242Mhz. ((correct))

I have no idea how to set up a jumper?
From what Ive read, the jumper can be set manually on my mobo? ((pic attached of my mobo))

Were is this jumper on my mobo?

Oh and if I'm way off, please laugh hard at me!
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post #2 of 8
On the newer boards there are no jumbers to manually set your fsb. If you have no jumpers that mean all your settings are Bios based. memory dividers are when you have an AMD chip with integrated memory controller.
since whatever the FSB of the cpu is, it is ALSO the frequency at which the memory is running at. so if you have ddr400 (200mhzX2) and you have an FSB of 250, your ram is actually running at ddr500 (250mhzX2)

so to set a divider you would actually bring the ram down to Ddr333 in the ram settings. meaning that since the memory controller is ment for 400 and you bring it down to 333 your ram divider is 333/400=0.8325

and in conclusion, when you have brough the ram down to ddr333, when you get the FSB of 250, you will have to multiply it with your divider like so:
250 X 0.8325= 208.13mhz meaning your ram is now running at ddr 416.26mhz

Now for intel since the memory controler is not integrated in the cpu, just lower the timings on your ram, or if that does not work, bring it down to ddr33, is the best advice I can give, since i havent tried to oc an Intel pentium IV. Tell me how it goes, I am as curious as you.
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Minotaur
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post #3 of 8
Ok, how's this.

I have no idea what people are telling you by adding a jumper, but to incorporate a divider into your FSB you just have to find an option in your BIOS that lets you set the speed of your RAM. It'll say something like DDR400, DDR533, etc. To enable the divider select a speed that is not the native speed of your CPU.

Example: The P4 3.4GHz runs at 200 MHz x 17. The native speed of this CPU is 200 MHz. Running a divider will clock your memory at a different speed than your CPU giving you some more room to overclock your RAM without worrying about stressing it too far.
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post #4 of 8
Thread Starter 
Ok, sorry for the devider/jumper thing. LOL

Ok, so if i lower my Ram speed to 333mhz, then i should be able to up FSB higher ((depending on if i have to lower/raise timmings))? Correct?

Edit:

And if i drop the ram speed, then i wont be running 1.1 anymore? Correct
My BFG
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My BFG
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250g SATA2 16Mb Windows XP home 20.1 Wide Screen Saitek Eclipse 
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post #5 of 8
Correct on both counts. Most folks do this right off the bat to find out how much the CPU/MOBO can go before becoming unstable.
Elite
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Elite
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post #6 of 8
Thread Starter 
So now that i found the high point with the current setup.
Do i start by lower my ram speed now ((with my current clocks)) or do i clock back down to stock, then lower ram speed and go from there?
My BFG
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CPUMotherboardGraphicsRAM
Core 2 Duo E6600 EVGA 680i SLI NF68 2 X 8800GTS 640MB in SLI G.Skill PC6400 DDR2 800Mhz 
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250g SATA2 16Mb Windows XP home 20.1 Wide Screen Saitek Eclipse 
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OCZ GamerXtream 700W Thermaltake Armor MS Optical 
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My BFG
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CPUMotherboardGraphicsRAM
Core 2 Duo E6600 EVGA 680i SLI NF68 2 X 8800GTS 640MB in SLI G.Skill PC6400 DDR2 800Mhz 
Hard DriveOSMonitorKeyboard
250g SATA2 16Mb Windows XP home 20.1 Wide Screen Saitek Eclipse 
PowerCaseMouse
OCZ GamerXtream 700W Thermaltake Armor MS Optical 
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post #7 of 8
Reset your settings, and with the 1:1 in place, start overclocking from there.
Elite
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IBM PPC Triple core @ 3.2GHz Custom ATi Xenos 10MB 
Hard DriveOptical DriveOSMonitor
120GB DVD ROM XBox 360 Dashboard Dell 24" 2405FPW 
PowerCase
Big Honkin One Black 
  hide details  
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Elite
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CPUMotherboardGraphicsRAM
IBM PPC Triple core @ 3.2GHz Custom ATi Xenos 10MB 
Hard DriveOptical DriveOSMonitor
120GB DVD ROM XBox 360 Dashboard Dell 24" 2405FPW 
PowerCase
Big Honkin One Black 
  hide details  
Reply
post #8 of 8
Thread Starter 
Thanks for being patient with me and not laughing so hard too!

I will be back to ask more questions later.

Again thanks
My BFG
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CPUMotherboardGraphicsRAM
Core 2 Duo E6600 EVGA 680i SLI NF68 2 X 8800GTS 640MB in SLI G.Skill PC6400 DDR2 800Mhz 
Hard DriveOSMonitorKeyboard
250g SATA2 16Mb Windows XP home 20.1 Wide Screen Saitek Eclipse 
PowerCaseMouse
OCZ GamerXtream 700W Thermaltake Armor MS Optical 
  hide details  
Reply
My BFG
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core 2 Duo E6600 EVGA 680i SLI NF68 2 X 8800GTS 640MB in SLI G.Skill PC6400 DDR2 800Mhz 
Hard DriveOSMonitorKeyboard
250g SATA2 16Mb Windows XP home 20.1 Wide Screen Saitek Eclipse 
PowerCaseMouse
OCZ GamerXtream 700W Thermaltake Armor MS Optical 
  hide details  
Reply
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