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Comp WONT Boot at 220 fsb

post #1 of 5
Thread Starter 
Hi guys

i changed my comp setting from 200 to 220, and it wont boot. the compter restarts and everything, but the monitor doesnt detect a signal.

i shut it down and turned it back on, and it said "overclocking failed"

any suggestions?

my previous threads

http://www.overclock.net/intel-cpus/...z-running.html

http://www.overclock.net/intel-cpus/...ng-i-need.html

any help is appreciate it. thanks
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post #2 of 5
You should only try to bump the clock speed 3-5 MHz at a time. There is lots of fine tuning that needs to go on, and 20 MHz at a time doesn't lend well to that. Download and run Prime95 and Memtest86 at each stage to test the stability of your system and RAM, respectively. When necessary, you can up the vcore (CPU voltage) and vdimm (RAM voltage) and loosen RAM timings to achieve stability.

Just remember to take things slowly. Although it's tempting to jump right in, the "baby steps" approach works out much better.
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post #3 of 5
Thread Starter 
Hey, thanks for the reply

I just used vcore and cpu frequency

and my max info is 218fsb @ 1.45 vcore

I even upped the vcore to 1.5 and changed the FSB to 220, and it still didnt boot. Is it necessary to change my ram settings?
My System
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CPUMotherboardGraphicsRAM
640 Prescott 3.2 @ 4ghz Asus P5WD2 Premium 7900 GT KO @ 550/800 2gb Corsair XMS2 5400ddr2 
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2x36 Raptors / 1 WD 250gb Windows XP Pro - SP2 Dell P1130 - 21" CRT Microsoft KeyBoard 
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My System
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CPUMotherboardGraphicsRAM
640 Prescott 3.2 @ 4ghz Asus P5WD2 Premium 7900 GT KO @ 550/800 2gb Corsair XMS2 5400ddr2 
Hard DriveOSMonitorKeyboard
2x36 Raptors / 1 WD 250gb Windows XP Pro - SP2 Dell P1130 - 21" CRT Microsoft KeyBoard 
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post #4 of 5
I had to change my RAM timings between 200 MHz and 225 MHz, but the exact point is very dependent on your exact setup. It's not inconceivable that is the problem (where is where Memtest86 comes in).

It was probably mentioned in one of your other threads, but have you locked your PCIe/PCI frequencies at 100/33.3 MHz? Not locking particularly the PCI frequency can cause lots of instabilities.
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Intel Q6600 G0 23A Asus P5K Deluxe Wifi HD 3870 2x2 GB G.Skill DDR2-800 
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2x250 GB Seagate RAID 0 + 320 GB Seagate Samsung SATA DVD Windows XP Pro/Vista Ultimate 64 bit Viewsonic VA2012wb 
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CPUMotherboardGraphicsRAM
Intel Q6600 G0 23A Asus P5K Deluxe Wifi HD 3870 2x2 GB G.Skill DDR2-800 
Hard DriveOptical DriveOSMonitor
2x250 GB Seagate RAID 0 + 320 GB Seagate Samsung SATA DVD Windows XP Pro/Vista Ultimate 64 bit Viewsonic VA2012wb 
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post #5 of 5
Thread Starter 
hey,

yes i locked my pci e and pci , at 100/33.3 mhz

another thing i noticed, i disabled intel step speed, but when im in windows, my 3.2 shows up as 3.0 in idle, but when I run Super Pi, it goes back to 3.49(current overclock).

If i disabled speedstep, why does it act like it isnt?

i have updated bios to revision 1.1002 or something like that (LATEST)
My System
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CPUMotherboardGraphicsRAM
640 Prescott 3.2 @ 4ghz Asus P5WD2 Premium 7900 GT KO @ 550/800 2gb Corsair XMS2 5400ddr2 
Hard DriveOSMonitorKeyboard
2x36 Raptors / 1 WD 250gb Windows XP Pro - SP2 Dell P1130 - 21" CRT Microsoft KeyBoard 
PowerCaseMouse
Antec True Power 2.0 550w Sunbeam Transformer Logitech MX-518 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
640 Prescott 3.2 @ 4ghz Asus P5WD2 Premium 7900 GT KO @ 550/800 2gb Corsair XMS2 5400ddr2 
Hard DriveOSMonitorKeyboard
2x36 Raptors / 1 WD 250gb Windows XP Pro - SP2 Dell P1130 - 21" CRT Microsoft KeyBoard 
PowerCaseMouse
Antec True Power 2.0 550w Sunbeam Transformer Logitech MX-518 
  hide details  
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