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Need Help Overclocking

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October 10, 2006 9:52:37 AM

I wanted to overclock, but I need a little help so I dont break anything or do it wrong

My System Consists of:
ASUS A8N-SLI (nForce 4)
AMD Athlon 64 3200+ (939 Venice)
NVIDIA 6600GT 256mb PCI-E
2x512 DDR-400 (Dual Channel) Generic (Apacer AM1)
Seagate Baracuda 160gb SATA
Silverstone ST60F 600w 12V-42A (710w Max)(12V1-13A 12V2-18A 12V3-16A 12V4-8A)

I dont want to do any soldering, power and heat shouldnt be an issue
If someone could tell me how/where to start
Thanks

More about : overclocking

October 10, 2006 11:26:26 AM

Increase your FSB 5 MHZ at a time. Keep the PCI, RAM and GPU at original MHZ. Make sure the computer boots into Windows. Watch the temperature of the CPU.
Once you get to the limit, you can lower the Hyper Transport Link and continue overclocking. You can also increase the voltage to the memory and CPU to increase stability, if you are not a casual overclocker.
See here:

http://forumz.tomshardware.com/hardware/Guide-overclock...
http://www.hardocp.com/article.html?art=Njg2

If you need more help, please ask for it.
October 10, 2006 7:38:57 PM

your ram will also determine how far you can go. once you go past 400mhz you might have to change the mem divider, that is if your motherboard lets you.
Related resources
October 11, 2006 4:55:21 AM

Installed nTune and found some numbers (All Components Have Stock Cooling)

GPU - Semi OC (How Far Should I Take This?)
Core Bus - 520MHz
Memory Bus - 1050MHz

System Clocks
HTT clock - 210MHz
CPU Multiplier - 10x
HT Multiplier - 5x
HT Bus Frequency - 1050MHz
Memory Clock - 400MHz
Memory Bus Frequency - 420MHz
PCI-E Reference Clock - 2500MHz

Memory Timings (Can Someone Explain These To Me?)
tRAS - 8
tRCD - 4
tRP - 4

Temperatures - Medium Load
CPU - 32°C
Chipset - 28°C
GPU - 49°C

Should I Use nTune to Overclock or Overclock Through the BIOS, I'm looking at a permanent solution
October 11, 2006 5:19:43 AM

Quote:
Installed nTune and found some numbers (All Components Have Stock Cooling)

GPU - Semi OC (How Far Should I Take This?)
Core Bus - 520MHz
Memory Bus - 1050MHz


you should use the detect optimal settings. since you are using stock cooling. you will need coolbits to do this.

Quote:

Memory Timings (Can Someone Explain These To Me?)
tRAS - 8
tRCD - 4
tRP - 4


those are your memory timings or latency, the higher the slower. as you increase frequency the slower it will need to be, you should be alright with those timings 4-4-4-8, also are you using coretemp to monitor your cpu temps. because motherboard temp utilities really can't be trusted.


Quote:
Should I Use nTune to Overclock or Overclock Through the BIOS

use the bios to overclock.
October 11, 2006 7:42:24 AM

Thanks For That, Got Coolbits running
October 11, 2006 8:29:49 AM

its very important you raise the FSB in small 2-5 increments with asus boards.

if you keep your HT bus at 1000 or lower, your memory bus frequency to as close to 400 as possible,this is achieved by setting the ram to run at a lower clock rate(eg.333,266 etc) and then when the HTT clock is raised it will eventually increase the ram speed back to 400.

theres no need to raise the V core until the cpu becomes a limiting factor of your overclock.

also any other clocks need to be lock at there defaults these are:

PCI-E:100
PCI:33

remember to check for stability by running prime or orthos which ever you prefer and always keep the temps below 50C for full load.

Goodluck
October 12, 2006 7:58:39 AM

Thanks for that explanation, as I'm having that very problem

Ive OC to 2.6GHz and my RAM has gone to 266MHz and The Latency Has Changed to 2.5 as apposed to 3 as suggested by the Manufacturer.

(Ram Should be: 2.6V 400MHz CL3)

The Problem I'm having now is that I can not find any way to adjust the FSB/HT Bus and have so far just been changing the CPU Clock

Does anyone know how to adjust the FSB/HT Bus on an ASUS A8N-SLi?

Also Keeping PCI at 33MHz and PCI-E at 100MHZ, Will OC the PCI-E improve performance from my Graphics Card?
October 12, 2006 7:27:31 PM

i would'nt overclock the PCI-E bus, i can see it crashing your system.

your HT ratio should be under chipset i think in the bios, my last rig had a A8N32-SLI Deluxe but i cant remember where the setting was exactly.
October 13, 2006 2:02:13 PM

Quote:
The Problem I'm having now is that I can not find any way to adjust the FSB/HT Bus and have so far just been changing the CPU Clock



look for the ldt/fsb in the bios and bring it down to 3x, this should put your ht to well under 2000
October 13, 2006 2:15:15 PM

Quote:
Ive OC to 2.6GHz and my RAM has gone to 266MHz and The Latency Has Changed to 2.5 as apposed to 3 as suggested by the Manufacturer.



if your ram is at 266mhz it running at ddr532, at that speed on ddr400 ram you're overclock will most likely be unstable.. your latency also has been reduced to 2.5 which might also cause instability.
!