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What is preventing my CPU from OC'ing any higher?

post #1 of 14
Thread Starter 
Hey guys (and gals)

I've been trying to OC this Athlon XP 1800+ in my sig, but I'm getting stuck. In my BIOS, there is a clock frequency adjuster, but only goes to a certain point. Here are the options:

FSB/PCI Clock
[Default]
[133Mhz/33Mhz]
[137Mhz/34Mhz]
...
[154Mhz/39Mhz]
[166Mhz/33Mhz]

I can get the PC to boot up at 154Mhz FSB but I had to clear the CMOS when I tried 166Mhz. Is this caused by my RAM or my CPU? Should I get a stick of PC2700 333Mhz DDR RAM? Or should I get a higher end CPU? Could it possibly be the PSU? (Total system reqs = 270W)

I'm using the stock CPU cooler and a few case fans.

Thanks for the help!
~numlock2.0
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post #2 of 14
Well it could be the boards limitations holding you back...can you adjust any voltages??
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post #3 of 14
Thread Starter 
Quote:
Originally Posted by dotcomthese View Post
Well it could be the boards limitations holding you back...can you adjust any voltages??
No, not for the CPU (I don't think). But there is a jumper for the memory that adjusts the voltage from 2.1V to 2.2V...if that helps at all...
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post #4 of 14
At a minimum, you would need PC2700, but your best bet would be PC3200 (because PC3200 at PC2700 speeds typically has better timings)

Booting up at 154 is kinda dangerous for your system, because your PCI frequency is out of range (anything above 37 is considered out of range) and your AGP frequency is definitely out of range at 154. Acceptible PCI/AGP frequencies (33/66 stock) is 37/72.

With some faster ram, and with some more CPU voltage, you should be able to run that 1800 up a bit more.

***EDIT

Just read the cpu voltage issue hmmm. Deathonator flogged an 1800, might even still be running it, I wonder if he has some insight

***SECOND EDIT

What's the specs on the rig you're saving for?
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post #5 of 14
Thread Starter 
Quote:
Originally Posted by Xavier1421 View Post
At a minimum, you would need PC2700, but your best bet would be PC3200 (because PC3200 at PC2700 speeds typically has better timings)

Booting up at 154 is kinda dangerous for your system, because your PCI frequency is out of range (anything above 37 is considered out of range) and your AGP frequency is definitely out of range at 154. Acceptible PCI/AGP frequencies (33/66 stock) is 37/72.

With some faster ram, and with some more CPU voltage, you should be able to run that 1800 up a bit more.

***EDIT

Just read the cpu voltage issue hmmm. Deathonator flogged an 1800, might even still be running it, I wonder if he has some insight

***SECOND EDIT

What's the specs on the rig you're saving for?
Hmm...he has a much better motherboard than I do...same with the WC.

The specs of my system will be whatever is available during the summer of 2007 (which will be a full 5 years since I got a new PC )

oh and another question: Can I unlock any multipliers for my 1800+?

thanks for the help thus far!
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CPUMotherboardGraphicsRAM
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Toshiba Q Pro 128GB SSD 1TB Western Digital Blue Samsung DVDRW Logysis GammaX 300 
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CPUGraphicsRAMHard Drive
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None Windows 7 Pro 13.3" 1280x800 TFT LCD Stock 
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post #6 of 14
http://www.viperlair.com/articles/ar...unlockxp.shtml

Not sure if you have a palomino or t-bred...you happen to remember the stepping?
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post #7 of 14
Also that does a multi un-lock...Maybe keep an eye out for another board cheap.
http://www.ocinside.de/go_e.html?htt...md_pinmod.html
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post #8 of 14
Thread Starter 
I know that it is a Throughbred B because that's what CPU-Z reports. Will Palomino work and Throughbred B not work?

edit: when I get home, I'll try and see if I can adjust any other voltages
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CPUMotherboardGraphicsRAM
Core i5 750 Gigabyte P55-UD3L F7 OEM Nvidia GTS 240 8GB Kingston HyperX DDR3-1600 
Hard DriveHard DriveOptical DriveCooling
Toshiba Q Pro 128GB SSD 1TB Western Digital Blue Samsung DVDRW Logysis GammaX 300 
OSMonitorKeyboardPower
Windows 8 Pro w/Mediacenter LG IPS 235V Ducky DK 1008 OCN Edition (MX Blues) Antec 400C 
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Cooler Master Centurion 534 Logitech MX518 Asus Xonar DG 
CPUGraphicsRAMHard Drive
Core 2 Duo P8600 Intel GMA 4500MHD 4GB DDR3 1333 Intel 530 Series 180GB SSD 
Optical DriveOSMonitorKeyboard
None Windows 7 Pro 13.3" 1280x800 TFT LCD Stock 
CPUMotherboardGraphicsRAM
Core i5 3470 HP Stock Intel HD 2500 8GB DDR3 
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500GB DVDRW Windows 7 Pro 64 Acer AL2002W 
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Wark!
(13 items)
 
CPUMotherboardGraphicsRAM
Core i5 750 Gigabyte P55-UD3L F7 OEM Nvidia GTS 240 8GB Kingston HyperX DDR3-1600 
Hard DriveHard DriveOptical DriveCooling
Toshiba Q Pro 128GB SSD 1TB Western Digital Blue Samsung DVDRW Logysis GammaX 300 
OSMonitorKeyboardPower
Windows 8 Pro w/Mediacenter LG IPS 235V Ducky DK 1008 OCN Edition (MX Blues) Antec 400C 
CaseMouseAudio
Cooler Master Centurion 534 Logitech MX518 Asus Xonar DG 
CPUGraphicsRAMHard Drive
Core 2 Duo P8600 Intel GMA 4500MHD 4GB DDR3 1333 Intel 530 Series 180GB SSD 
Optical DriveOSMonitorKeyboard
None Windows 7 Pro 13.3" 1280x800 TFT LCD Stock 
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Core i5 3470 HP Stock Intel HD 2500 8GB DDR3 
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post #9 of 14
Thread Starter 
So, I just checked out the BIOS. There are a few options in the clock frequency control submenu:

Auto Detect DIMM/PCI Clock [Enabled]
Spread Spectrum [+/- 0.25%]
[-0.5%]
[+/-0.5%]
[+/-0.75%]
[Disabled]

CPU Host/PCI Clock in OP

Those are the only options. No CPU voltage. I guess I'll try the multiplier unlock if I get the chance (or if I can).
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CPUMotherboardGraphicsRAM
Core i5 750 Gigabyte P55-UD3L F7 OEM Nvidia GTS 240 8GB Kingston HyperX DDR3-1600 
Hard DriveHard DriveOptical DriveCooling
Toshiba Q Pro 128GB SSD 1TB Western Digital Blue Samsung DVDRW Logysis GammaX 300 
OSMonitorKeyboardPower
Windows 8 Pro w/Mediacenter LG IPS 235V Ducky DK 1008 OCN Edition (MX Blues) Antec 400C 
CaseMouseAudio
Cooler Master Centurion 534 Logitech MX518 Asus Xonar DG 
CPUGraphicsRAMHard Drive
Core 2 Duo P8600 Intel GMA 4500MHD 4GB DDR3 1333 Intel 530 Series 180GB SSD 
Optical DriveOSMonitorKeyboard
None Windows 7 Pro 13.3" 1280x800 TFT LCD Stock 
CPUMotherboardGraphicsRAM
Core i5 3470 HP Stock Intel HD 2500 8GB DDR3 
Hard DriveOptical DriveOSMonitor
500GB DVDRW Windows 7 Pro 64 Acer AL2002W 
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Microsoft Standard Generic HP Pro 3500 Microsoft Standard 
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Desktop
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Wark!
(13 items)
 
CPUMotherboardGraphicsRAM
Core i5 750 Gigabyte P55-UD3L F7 OEM Nvidia GTS 240 8GB Kingston HyperX DDR3-1600 
Hard DriveHard DriveOptical DriveCooling
Toshiba Q Pro 128GB SSD 1TB Western Digital Blue Samsung DVDRW Logysis GammaX 300 
OSMonitorKeyboardPower
Windows 8 Pro w/Mediacenter LG IPS 235V Ducky DK 1008 OCN Edition (MX Blues) Antec 400C 
CaseMouseAudio
Cooler Master Centurion 534 Logitech MX518 Asus Xonar DG 
CPUGraphicsRAMHard Drive
Core 2 Duo P8600 Intel GMA 4500MHD 4GB DDR3 1333 Intel 530 Series 180GB SSD 
Optical DriveOSMonitorKeyboard
None Windows 7 Pro 13.3" 1280x800 TFT LCD Stock 
CPUMotherboardGraphicsRAM
Core i5 3470 HP Stock Intel HD 2500 8GB DDR3 
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500GB DVDRW Windows 7 Pro 64 Acer AL2002W 
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post #10 of 14
Disable anything that has "Spectrum" in it!
    
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