Quick and dirty A64 clocking guide **UPDATE** X2 OC information!

[ITPaladin]

Originally posted by: OvErHeAtInG

Originally posted by: ITPaladin
It would not do it with the RAM set at 200. When I set it to SPD, and the settings would become unavailable, then it would boot.
I am not sure if I am doing this correctly.
I have voltage a default rather than upping it in step 2 since I figure why up the voltage if you don't have to.
So far I have it at x10 and 216 FSB. Is this max of x10 a limitation of the chip or the BIOS of the KN8?

I don't know anything about dividers either. I have not seen that word in the BIOS anywhere.

Life was simple on an XP.

Well I"m coming from a P4 Northwood, which has relatively complex things; this is way different but pretty comprehensible by comparison

So your RAM was what it was not allowing you to boot. It didn't like going above 200, obviously. That's good, leave it at SPD, slowly push up your HTT to see how fast your CPU will go on stock voltage.

The limitation of 10 CPU multiplier is a limitation of your CPU. I'm guessing you have a 3200+? I'm limited to multi of 9, because I'm running an Opteron 165. (BTW, you CAN turn down your multiplier, and probably have to when you want to see how high your RAM will go. You will end up running it at 10, however, when you want to go). So you set your RAM to SPD, that's good, just fire up CPU-z in Winodws to see what the BIOS set the timings and MHz to. I just manually set my RAM to 133, 2.0-2-2-7. Then after overclocking, my RAM ends up at 174 or something. That works well for what I have; yoru RAM might be able to go higher/be set at 166, but maybe with slower (i.e. higher) timings.

I started my own thread to address the lack of teaching on the basics of what this new A64 stuff means.

I have an Opteron 146.

I suggest you look at my new thread in this forum that I seem to have started to understand terminology, which is the main barrier to starting to overclock from an XP system.

I am currently at 340 Mhz and x2 HT frequency while testing max FSB. I have multi at 4. I have the DRAM Clock at 200 (100 for you people that call it that ).

 

[ITPaladin]

Originally posted by: jenny9580
I'm having a serious brain fart and I don't want to dedicate a new thread to this.

I have an A64 3000+ (Winchester, 939). I've tried to find the default voltage for it, but for some reason I'm finding both 1.4 and 1.5 on various vendor sites. In the bios, "auto" doesn't tell you the value, and CPU-Z fluctuates too much. Which one is correct? I have it set at 1.5125 (something like that) for my current OC, and I'd like to lower it a little.

Thanks for any help!

The AMD website should have specs for your CPU, just like it does for my Opteron.

 

[phaxmohdem]

Beans Beans, the musical fruit....

 

[Indred]

Originally posted by: phaxmohdem
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What he said

 

[Budman]

Originally posted by: Indred

Originally posted by: phaxmohdem
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What he said

 

[imported_droopy]

Hi,

I have a Winchester 3000+
I o/c it without any problem to 2200 on my Asus A8N-E board ... but if i go past that ... 2300,2400,2500 etc. in windows or cpuZ it shows that the CPU is running at 1800 instead of 2400 or whatever.
I tried different settings for my memory from ddr 400 to ddr 200 ... i updated to the latest bios,drivers, i used gogar to find settings... read thru most of the pages here.
I`m stuck ... in BIOS it show 2400 but in window it shows 1813 ... what is wrong here ?
Thank you.

 

[DivideBYZero]

Why isn't this sticky any more?:|

 

[Doctorweir]

So we have more fun bumping it...we should set up a shift schedule among the members for this purpose

 

[crazylegs]

remind again y this not a STICKY ?????!!!

 

[imported_droopy]

Can anyone please answer my question.
Thank you.

 

[firewolfsm]

i got my 3200 venice at 2.6 (260x10) stable 14hrs Prime95 1.475V with my performance OCZ at 234MHz 2.5-3-3-7 1T. the only downside is the low HTT of 780 (260x3).

thanks

 

[CheesePoofs]

droopy: make sure cool and quiet is turned off in the bios and that any throttling settings are also turned off.

 

[imported_droopy]

Originally posted by: CheesePoofs
droopy: make sure cool and quiet is turned off in the bios and that any throttling settings are also turned off.

Cool and quier is turned off from bios, also i uninstalled the drivers .
AI NOS and other such things are turned off ... no other o/c utility is running.

 

[CHOPPER GOD]

/

 

[Constanople]

The guide says 1t is far superior to 2t. Perhaps that should be updated to the latest findings

 

[Alfalfameister]

Originally posted by: Constanople
The guide says 1t is far superior to 2t. Perhaps that should be updated to the latest findings

Can you tell me what the "latest findings" are? I am under the impression that 1T is faster, but 2T is more stable (but that if 1T is stable, then go for it, right?).

Tnx.

 

[stevty2889]

didn't this use to be stickied?? It seems to have fallen pretty far off the front page..

 

[fbrdphreak]

Yay its stickied again!

 

[tommy2q]

what's going on with the 1t vs 2t issue? how come this post said it didn't make much of a difference?

Originally posted by: Constanople
The guide says 1t is far superior to 2t. Perhaps that should be updated to the latest findings

 

[coomar]

not a huge difference

 

[Thorsson]

It appears that the biggest single difference is running dual channel, and even that's not that big (7.7% on 3DMark05 from my own tests). 2Gb makes little difference except on certain games/programs (but that number is increasing all the time). The rest of the memory holy grails, 1T, tight timings, higher bandwidth, are only worth around 2-3% each - and some of these offset each other (you can't have maximum bandwidth and tight timings). Many of the synthetic benchmarks are very misleading on this.

From this I'd say getting reliable (i.e. warranted) 2Gb as cheaply as possible is the sensible way to go for anyone with more sense than money.

 

[Maluno]

Hi, I've just started overclocking recently, and I am confused with a few problems I am having. First of all, when I try to find my memory max speed, I use the memtest bootcd, like Zebo suggested, and I do tests 5 and 6. I am able to pass the tests easily up to about 225HTT with no errors, but when I boot into windows and run Super Pi or Prime, they fail, with rounding errors or something similar. Shouldn't Memtest be a bigger stresser for the memory and show errors quicker than either of these two?

 

[theMan]

did you reduce your ldt (HT multiplier) to 3x first? what is your cp multiplier at?

 

[Maluno]

Originally posted by: theman
did you reduce your ldt (HT multiplier) to 3x first? what is your cp multiplier at?

Yes My LDT was at 3x. CPU Multi is at 9, but it is stable up to 2610, so that is not the problem.

 

[Losty]

well for my system... at some htt it isn't stable... regardless of my memory being able to hit 250 ... relaxing the timing to 2.5-4-4-10 helped... and at some settings... putting it at normal timings with higher htt worked... go figure...