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Need some help overclocking my 3700

post #1 of 13
Thread Starter 
hi all i need a little help with over clocking my amd 64 3700 san diego socket 939
i have read a few threads on this topic and I am having a little problems i have turned my v core up to 1.4v and tryed to turn my frequency of my cpu to 240 (which should be possible but my comp wont boot over frequency of 210) any help you can give would be great and i know that its an old cpu but i need it to last a bit longer till i can upgrade check my profile for my system specs

thanks all

Virtual Vulture
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post #2 of 13
Have you set a divider on your RAM?
By setting the default speed to a lower than its default, the RAM has room to increase in speed.
Example: If you have DDR400 (200MHz) and the CPU is at 200MHz there 1:1, so as you increase the CPU speed the RAM increases in speed equally.
By changing the speed to say DDR333 (166MHz) the RAM only increases about 83% of the CPU speed increase.
So, what ever your RAM default is, try setting it to 1 speed lower.
You can also increase the RAM voltage or vdimm a few tenths of a volt to increase its overall stable speed.

You may also have to set the HT multiplier lower too.
Its default is 5x or 1000, try 4x or 800

Other voltage increases may help too..
CPU voltage
Chip Set voltage or if separate, North Bridge and South Bridge.

Increase minimal amounts if you do and test with Orthos, OCCT, or Prime95 for stability.
OCCT is usually a good utility for a quick check and will likely error in 5-10 min. if there is an issue. Run it for 15 min and then try another increase.

Watch your CPUs full load temp when testing and keep it below the mid 50c range.
Edited by The Duke - 6/15/08 at 5:29am
    
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post #3 of 13
Duke, excellent suggestions

Virtual VUlture, in most Gigabyte motherboards (GA) the memory settings are available in the "Advanced Settings" section. This area in the BIOS can be enabled by hitting the CTRL+F1 keys. It should pop up on the left area of the BIOS.

Good luck
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post #4 of 13
i had to take the chipset voltage 1 notch higher for my oc to be stable. also, try loosening up the timing a little on the memory.
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post #5 of 13
Thread Starter 
hi duke thanks for all the help how u explained was exactly what i was doing wrong thanks heaps i got it up to a frequency of 240 and v core of 1.4 with the avg temp being 55 over full load for 1 hr thanks heaps all for your ideas and help i love this forum and its right overclocking is addictive.

Virtual Vulture
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My System
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AMD 3700+ GYGABYTE GA - K8NF - 9 6800gs 256 
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Windows Xp SP2 
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post #6 of 13
With some better cooling I'd venture to say you'll find higher OC with better temps too
A lot of theose 3700 OCed very well.... 2600-3G even
    
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post #7 of 13
Thread Starter 
whats the best temp to run at under load as when i ran mine using prime 95 for 10hrs it avg about 56 -57 (with a not so great but better then stock standard heatsink).


Thanks to any help that you can give

Virtual Vulture
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD 3700+ GYGABYTE GA - K8NF - 9 6800gs 256 
OS
Windows Xp SP2 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD 3700+ GYGABYTE GA - K8NF - 9 6800gs 256 
OS
Windows Xp SP2 
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Reply
post #8 of 13
Thats about as hot as you want to go. Most consider about 55c to the the high end of acceptable. I'd say that your sitting pretty good where you are. Nice OC.
post #9 of 13
Actually instead of fooling around with memory settings and stuff like that, look up a utility called AMD Overdrive Tool. It can actually optimize your computer for maximum performance and stabiliity.
post #10 of 13
Quote:
Originally Posted by Bad213Boy View Post
Actually instead of fooling around with memory settings and stuff like that, look up a utility called AMD Overdrive Tool. It can actually optimize your computer for maximum performance and stabiliity.
Bad213boy, great suggestion but remember software overclocking can still be dangerous regardless if the app comes straight from AMD. Data corruption is just to common. All though I haven't really heard too many negative things about the Overdrive Tool I would still be cautious.

Good luck OP
Workstation
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CPUMotherboardGraphicsRAM
Athlon II X4 620 Asus M4A785-M Asus 5770 G.Skill 8GB DDR2-800 
Hard DriveOSMonitorPower
WD3200AAJS Windows 7 Pro Acer AL2216W, Samsung P2770 Corsair 550VX 
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Tagan Black Pearl 
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Workstation
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 620 Asus M4A785-M Asus 5770 G.Skill 8GB DDR2-800 
Hard DriveOSMonitorPower
WD3200AAJS Windows 7 Pro Acer AL2216W, Samsung P2770 Corsair 550VX 
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Tagan Black Pearl 
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