Need help with OC'in

[SteelGuy]

Whoa- got it to 325 CPu frequency...

I think I can push it to 330 CPu frequency which makes it a HTT of 990...right below 1000..


Should I push till it crashes - even though it will go past 1000 HTT?

Or should I assume that my max is 325?

Edit: I pushed it all the way to CPU frequency 350 or so and just left it be...it was still starting up and then at 360 was having a lot of trouble

But then when trying to figure out the venice's max..it was disappointing...i've been pushed all the way back down to CPU frequency 247 - I fail the Prime 95 test within 5 min at 260 cpu frequency

The htt at 247 cpu frequency is 747mhz.

I don't really know why its stopping there - it doesn't sound right with what everyone's saying..

My ram is set at 200mhz max speed again - I'm not sure if theres anything else I must do to it

Video is locked

Am I missing something or is this what my Max CPU for venice 3200 ?

 

[Xcobra]

what multiplier are you using for the cpu?? i would suggest that you do 250x10 and run prime to see if thats stable....

 

[SteelGuy]

Yeah i've been using 10 as a cpu multi

i went away for an hour and had prime running
247 Cpu frequency X 10 multiplier
741 HTT - with X3 - should i make this X4? that'll give me 988 HTT...

 

[Xcobra]

remember we are trying to test cpu max so we want to discard HTT or "FSB" frequency for now.....try 250x10 with x3 HTT multi....run Prime and see how stable it is...if so, then increase HTT by increments of id say 3 MHz...well i myself just do 5MHz at a time just to see if its stable...this takes long (im still testing mine since last tuesday ) but at the end you know that you have done an OC yourself...

 

[SteelGuy]

well i guess ill just increase the freq till prime finds a good balance - i think 247 is where im at though...

u have a venice too - hows ur CPU doing - shouldn't our max's be about the same?

Also - while ur doing ur testing - did u revert back to stock settings when u werent testing or u just leave it oc'ed een though it wasnt finished

 

[Xcobra]

Yes i did...to find cpu max i set the Ram on a devider, set HTT multi to 3 and just started feeding that HTT frequency and increasing voltage accordingly...at first I was having problems with an OC of 2.4, prime would not be stable and would fail in the first 5 min..but after playing with my bios for a while, I think I found the ideal settings for my mobo and now Ive running prime for almost 6 hours @ 2.55GHz...I know this is low for a venice but to think that it wouldnt do 2.4 at first....I think it can go to 2.7 at most...i think i got a dud so it probably wont do 2.7 like i was hoping to but oh well a 550MHz OC over its stock speed to me, is good OC so Im happy ...just dont give up man, youll get something out of it...

 

[theMan]

when im still testing, i just leave it at a moderate level, that way i still have a good overclock, but i know its all stable. anyway, set your vcore at 1.55, set cpu multi at 10. set memory at 100, and everything at auto. set ht multi to as low as it goes (do you have 2x?). set PCIe/PCI lock. now, start gradually upping the htt, very slowly, by 5 or 10. test prime. if it fails within 5 mins, reduce by 5%. if you really max out at 2470, try a different multi/htt combo. set the multi at 9x and do the same thing.

 

[SteelGuy]

Shouldn't I want to have HTT as high as possible? Doesn't that help things out as well - so lowering the multiplier would lower overall preformance?

I guess i'm not exactly sure what certain things do


I'll keep trying different combo's


What do you guys recommend for the memory?
Once I figure out how fast I max out at for the CPU and HTT - do I mess with memory timings?

Which ones should I specifically mess with - I know I should put voltage up to like 2.7..; what about max mhz?

 

[Xcobra]

well since its Value Ram, lets say your cpus max is 2.6 and you are running your HTT at 260 with a multiplier of 10, the Ram you have cannot do 260MHz so you see, you will always have to use a devider in order to run your cpu at it max OC....btw the performance loss of having a HTT at 1000 and lets say 900 is not that great so dont worry about that...keep trying

 

[SteelGuy]

Is basically setting the memory max speed at 200 setting up the divider properly?

I just set the memory DDR at 266 - running prime now...lets see what happens - so far seems to actually be better..

EDIT take that back - just failed it.

 

[theMan]

to find your max mem, set the cpu multi at 6, and set the ht multi at 3. set your memory divider to 1:1 ddr400. increase the htt until the memory starts failing memtest.

 

[Xcobra]

this is where Memtest would become handy...do you have it on the bios Steelguy???ill look for the link...its a software to test your memory stability....Here

 

[GuitarDaddy]

Somethings wrong or you got a dud chip, I just helped a guy today clock a venice 3200+ to 275 x 10 = 2750mhz

Make sure you set HTT in bios to activate the locks on this board, if you boot up to windows at stock speed and overclock in window the PCI and PCIe buses aren't locked.

Keep HTT multi at 3x (the total HT speed makes almost zero diff in performance)
Set the max memory clock to DDR200
Set CPU volts to 1.55
CPU multi to 10x
HTT to 260mhz
Everything else at AUTO

See if it will boot with these settings

 

[SteelGuy]

My PC boots with
et the max memory clock to DDR200
Set CPU volts to 1.55
CPU multi to 10x
HTT to 247 mhz
Everything else at AUTO

it'll boot wiht 260 but fails prime95 at 260.

What should I do with the mem test?
IE how do I use that thing - i ran it - found some errors - but i hadn't even done anything....

 

[theMan]

wait, it failed memtest at stock??

also, you want the memory divider at ddr400 not ddr200. this way, the memory will run at the same speed as your htt.

 

[SteelGuy]

Well it came up with like one error box at stock - stock being 200mhz - or at least so I thought.

I'll change things to 400 - but I remember it not booting at 400mhz max speed.

Should I leave it at 2T?

 

[Xcobra]

the thing that hes got Value ram so its most likely to not keep up with his cpu speed...

 

[Bona Fide]

Even if it's Value RAM, OCZ-quality material should be able to do some decent overclocks...I'm surprised he's failing at stock speeds.

 

[SteelGuy]

Now im really confused - I set it to 400mhz (Ram max speed) and it starts up..
So for a few seconds im content...
Starts up and AI Booster (measures my CPU speed) says 2015....

But...My CPU Multi is 10X and my Cpu frequency is 247....should be 2475..right where it was before restart....

HTT is 201.5 according to CPU-z....But its not...its 247.

ill keep playing with it - maby it is the ram - but it is OCZ ram - I thought that was halfway decent and that value didn't matter for A64..
oh well trying again.

 

[Xcobra]

keep trying man...it takes time...right now im doing 274x10 and priming away for around 1.5 hrs and no errors so far....and i thought that this cpu couldnt do 2.7 but hopefully it will be stable at this speed...just dont give up

 

[GuitarDaddy]

Originally posted by: SteelGuy
Now im really confused - I set it to 400mhz (Ram max speed) and it starts up..
So for a few seconds im content...
Starts up and AI Booster (measures my CPU speed) says 2015....

But...My CPU Multi is 10X and my Cpu frequency is 247....should be 2475..right where it was before restart....

HTT is 201.5 according to CPU-z....But its not...its 247.

ill keep playing with it - maby it is the ram - but it is OCZ ram - I thought that was halfway decent and that value didn't matter for A64..
oh well trying again.

It failed to boot, and defaulted to stock. You aren't going to get 247mhz out of value ram.
Until you find out what your max CPU overclock is you should be using DDR200 2:1 divider.

And make sure your ram will pass memtest at stock speeds before you go any further with your testing. If you have a bad stick of ram testing for overclock is useless

 

[SteelGuy]

My max CPU is 2475Mhz.

So DDR200 is 2:! divider...k

If I leave it like this - how much slower is my PC with the ram not going as fast?
Is it faster w/ the OC or slower b/c of the RAM?

I tested the memtest - 200, 266, 333, 400 - Test 2 or 3 (and in some 4) failed - I stopped there.

By failed I mean a red box appeared and said that a memory group xj3333 or whatever did not pass..

So by testing stock - I should put all settings to stock and then try it out?
And if THAT fails that means im just outta luck??

Should I RMA my ram?
I need my comp - this sucks!

 

[GuitarDaddy]

Yes set everything to stock, and if it won't pass with default memory settings then you should RMA the ram. You can try loosening the timings or increasing the DDR volts from default and see if it will pass, but I would RMA if it doesn't pass at stock.

Check 1 stick at a time, you may have just 1 bad stick. If thats the case you can run with 1 stick while you RMA the other. If both sticks fail at stock you may have a bad memory controller on your CPU, you could test the ram in another system to verify this.

And I don't think you know what your max CPU is until you get this memory problem solved, your CPU may be better than you think.

 

[theMan]

make sure you are giving the ram enough voltage. bump it up at bit at stock and see if it can pass.