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OC help: athlon 64 3200 venice

post #1 of 19
Thread Starter 
Hello, This is my first post on this forum.

Can anyone see any flaws in my OC setup below. I dont yet fully grasp the effects of an overclocked fsb on ram because of this I set the fsb to 250mhz and then set the ram divider to 5:4 so that the ram would remain at 200mhz; was that a wise decision or would having a lower fsb like 220 and a 1:1 ratio be more effective in reguards to tweaking my rams timings. I havent been able to lower my ram timings below 3.3.3.7, is this because I am using generic ram? or is it because I need to change some settings?

So far I have gotten prime95 to run for 41 min with the voltage settings on auto. I'd like to get prime95 to run for a couple of hours while oc'd. Any suggestions would be great, also if someone knows a link to a guide that talks about the relationship of ram voltage, timings, dividers, and fsb I'd love to read it. I am a little grey in that area.

system specs are:

zalman cn9500 heatsink/fan
2ghz athlon 3200 (ddr 400) Venice core
2gig (2x1gig) supertalent ram assuming its the 3L version
256 pci-e 6200 nvidia video card
asus a8n-sli mb

my bios changes so far are:

ddr ram voltage: 2.7
vcore: 1.45
fsb: 250mhz
cpu multi: x10
pci-e: locked at 100mhz
pci: locked at 33.33mhz
ddr timings:3.3.3.7
divider: ddr 333 (5:4) ratio
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post #2 of 19
You seem to be in good shape...from over here...
start here...
http://www.overclock.net/faqs/?c=2
PRONE
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PRONE
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Cap't Crunch
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CPUMotherboardGraphicsRAM
i7 3930k @ 5Ghz Msi X79A-GD45 Gigabyte Radeon 7950 Patriot Sector 7 
Hard DriveOptical DriveCoolingCooling
2xCorsair Force Series 3 Raid-0 LG DVDR/W Custom Water Loop Swiftech Apogee Drive II waterblock/pump 
CoolingCoolingOSMonitor
Swiftech MCRES-Micro Rev 2 Larkooler 240mm Rad server 2008 RC2 HP 2207HD 
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Mouse PadAudioOther
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post #3 of 19
Your RAM is definitely going to hold you back. Seems like a lot of people use the A8N-SLI. Might have to think about that one if I go 64-bit anytime soon.
post #4 of 19
If your motherboard will allow you to do the following settings, try it out.

Multiplier 10x
V core 1.55-1.6
RAM divider 2/1.5 (150 mhz)
FSB 270
HT multi 3x

That will give you 2.7ghz with your RAM running at a comfortable 404mhz

If you don't have a 150mhz memory setting, try this.

Multiplier 9x
V core 1.55-1.6
RAM divider 2/1.33 (133 mhz)
FSB 302
HT multi 3x

That will give you 2.7ghz with your RAM running at a comfortable 400mhz
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post #5 of 19
Run through this to get you started....

http://www.overclock.net/faqs/38169-...roduction.html
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post #6 of 19
Thread Starter 
hey thanks alot for the help, ill be reading those articles and testing out the alternative settings some of you guys listed.

does anyone know a program that can show you the voltage of the ddr ram? usually when I change the speed of the processor i set the voltage to auto then look and see what the mb selected in cpuz then set it to that, and that seems to work. Was thinking maybe i could do the same thing for the ram?
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post #7 of 19
Welcome to the site, please fill in your profile it will help us to help you, speedfan will give you your temps and volts, cpu-z will tell you the rest of your specs.
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post #8 of 19
Thread Starter 
ok. I added my system settings to my profile... wasnt quite sure what it meant by memory speed so i added the current divider settings i was using.

Im still having stability issues with Prime95... I think the problem is probably one of the things that i dont quite understand yet, namely the HTT multi and the ddr voltage. If im changing the ram divider to a lower setting like 5:4 does that require more voltage? and does anyone know a good system to base what you set the htt multi? im not sure how it relates to the rest of the system
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CPUMotherboardOSMonitor
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post #9 of 19
Look at BIOS to tell you Vdimm..... there are limitations on the Asus MB as to what it can accurately report.

If you work through the previous link that will help you OC this MB, also work through this as well.

http://www.overclock.net/faqs/31782-...limits-my.html

HTT can be left at x3 for the A8N MB as this will cater for up to HT of 333.

ClockGen can be used to set Vcore on the A8N but really you need to manually set these in BIOS and test.

GL
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post #10 of 19
Thread Starter 
Hey just a quick update! Prime95 has been running fine for over 3 hrs so im gonna bet that its stable... running alittle hot though, at a high of 47C so i think im gonna buy some exhaust fans for the back of my case tomorrow seeing as I do not have any currently . The settings that worked as it turns out were:

ddr ram voltage: auto
vcore: 1.5
fsb: 250mhz
cpu multi: x10
pci-e: locked at 100mhz
pci: locked at 33.33mhz
ddr timings:3.3.3.7
divider: ddr 333 (5:4) ratio
htt multi: x3
ram timings: 3.3.3.7

Thank you very much for your help folks!
Now i just need to buy better ram.
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My System
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CPUMotherboardOSMonitor
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KeyboardPowerCaseMouse
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