Athlon 64 Overclocking Guide

I've got a Qbic 3801 with an Athon 3200+. Everything I've read so far tends to suggest that you can't O/C this machine. Does anybody know if this is the case? I don't really want to try, and then f*ck the board & CPU up! I've broken too many things electrical in the past few months!
 
name='Damianscott71' said:
I've got a Qbic 3801 with an Athon 3200+. Everything I've read so far tends to suggest that you can't O/C this machine. Does anybody know if this is the case? I don't really want to try, and then f*ck the board & CPU up! I've broken too many things electrical in the past few months!
Click to expand...

Easiest way to find out on your own is to access the BIOS when your computer first boots up... If there are any options to tweak your front side bus, voltage, ram timings, memory dividers, etc then you have some overclockability. If you can't find any of these things then unfortunately you're out of luck in the OC department (unless the board supports some form of jumper overclocking [which i dont even think exists for A64 board]).
 
Thanks for this guide. Used it when overclocking my Opteron(hadn't overclocked an Athlon64 before). Currently have it sitting at 2.75GHz. I have had the processor higher but I had to put loads of extra volts through it for some reason. Although with my Big Typhoon the temperatures were still really low! Can't really complain at that overclock though.
 
FragTech

Right now I have my 3700+ 64 at 2.698 11x245 fsb. vcore 1.55 ram at 2.8 chipset 1.60 HTT 1.30. My HTT is set to auto. I had to back off my timings to 2.5-3-6-5-t1 to be able to run at 11x245. Do you see anything I might be able change to get more?
 
Wow, did you really need that many volts going through your proccy to only get to 2.698? Mine is sitting at a happy 2.86 with only 1.45 vcore <shrugs>
 
name='WC Annihilus' said:
Wow, did you really need that many volts going through your proccy to only get to 2.698? Mine is sitting at a happy 2.86 with only 1.45 vcore <shrugs>
Click to expand...

I recalculated my max cpu freq. I'm at 2.9ghz @ 1.7v, I ran superpi @ 2M till it started showing errors, then I uped my volts .025 till superPI ran with no errors. I am now able to run any test with now errors. My max cpu temp gets up to 45c under a heavy load, this is on air mind you. Now I need to find my mem max.
 
1.7 is hella high! You don't want it at that! I'm surprised you need that much voltage, I bet I could get to 2.9 with only .0125 more voltage for a total of 1.4625. Unless you're one of those who has more money than can be counted and it's not an issue at all... But then, you would prolly hav a phase change :rolleyes:
 
Ok here is here is where I stand. Cpu 2.870ghz 10x287 1.7v 33c idel 45c load / HHT 3x / Mem 3200xmsLL set to 333 2.5-3-6-5 2.8v 480mhz.

My max cpu freq was 2.9 at 1.7v with no errors from superPI 4m tests.

My max mem freq with loosend timings was 490mhz.

I was able set my cpu at 10x FSB at 287 , HTT at 3x, Ram at 333

Cpu-z reads cpu 2873.6 , mem 239.5 or 479mhz.

I follow the instructions to the letter set by FragTech, and was able to reach this stable OC.

So what do you think?
 
I have s 3700+ sandiego core. I'm useing a Swif Tech MCX6400-V heatsink. 1.7 is the only voltage it will accept and run at 2.9 any thing less and it resets my cpu. My temps are 33c idle and 45c heavy load. I do not have a phase change, but looking into it. So how are you able to hit 2.86 at such a low voltage.
 
(Even if I'm not a moderator, I'd like to point out that they don't appreciate double posts. Next time please use the edit post option :D )

Umm, well different chips are obviously different. What stepping do you have? You really should be careful with using that many volts considering stock voltage is 1.4v <shrugs>
 
kempez815 said:
Mate on air you should go above 1.6v. 1.65 is MAX on VERY GOOD air.

1.7 is dangerous to run a chip at on air :eek:
Click to expand...

So do you disagree with Frag Tech, in his post he stated that 1.7 should be ok. Why is it so bad, my temps are ok.
 
Ya I know It can, what I don't get is why is this so unaceptable, is it because i'm on air? My temp is ok, it dosn't go over 45c. The system runs great. It dosn't crash games or benchmarks.
 
It may run stable right now, but you have probably dropped the total lifespan of that thing bya fair amount. Also, I think Frag's mention of 1.7 being acceptable is based on chips that have a stock voltage of 1.5 vcore. Sandy's have a stock voltage of 1.4 vcore, making the acceptable voltage more like 1.6 vcore.
 
Frag was referring to A64's that are older and had a far higher start voltage.

The newer 90nm silicon does not need more volts and you don't want to be putting 1.7though it unless your on very decent water or phase change :(
 
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