Can't push 1700+ higher than 166*9.5 and I should be able to...

[magomago]

For my specs, check out my sig as its written right there.

First let me adderss a few issues:

a) There is "healthy" flow of air
b I have a Volcano9 cooling the processor with AS3 that was properly applied




Okay...now I'm trying to say on the 166FSB because I was syncronous operation with my ram (And I don't want to push my ram further because I don't have heatsinks for them)

Here is how I overclocked:

I lowered my multiplier all the way and started at 166. It would post and each time I raised the multiplier I left it for two straight days running p95 in the background (including nights when I was sleeping).

I got all the way to 9.5 and its very stable.

at 166*9.5 I am 27 Idle and 34-35 full load (OR so Asus Probe says...add about 10 degrees to both to probably get the real deal) on the CPU

Now when I push it to 10 on the multiplier (I am using 1002.001 Bios) Windows won't boot and it gives me some blue screen with writing aLL over saying "Windows could not boot b/c of an error...reboot or try reinstalling" something to that effect...

I try and it doesn't work.

I lower the multiplier down to 9.5 and it runs perfectly.

This is win2kpro SP3 btw.


Does anyone have any idea? THE cpu is cool, and according to people on AT my tbredA shouldn't have too much trouble hitting 1.6ghz (even AT says their limit is 1.8-1.9Ghz) I'm trying to stay at a 166FSB for syncronous operation since its "optimal" for the nforce2

Thanks!

 

[Killrose]

What is the voltage of your 5+ line? It had better read 4.8+volts to 5+volts, or else I would say it's your PSU. Set it to stock and note the reading. Then overclock it and note the reading. If it is dropping at all with that little of an overclock, PSU time.

 

[magomago]

5v line?

The AthlonXPs suck power from the 12v rail and I'm getting 12.672 (not sure what the units are) - this is from Asus Probe

AndI'm rated 15 Amps on my 12vrail

 

[SickBeast]

my 1700+ tbred-b does 2000mhz (12x166) at 1.75 volts. i found that higher voltages were actually worse for some reason. good luck.

 

[Killrose]

Originally posted by: magomago
5v line?

The AthlonXPs suck power from the 12v rail and I'm getting 12.672 (not sure what the units are) - this is from Asus Probe

AndI'm rated 15 Amps on my 12vrail

Wrong! The fact that your 12v line is reading high would indicate your 5+ rail might be running low.

Read this

 

[drewski]

why do you say that you should be able to? did you get a higher overclock on a different system with this cpu?

sorry to play devil's advocate, but every cpu is different and just because a cpu with the same stepping and build week as yours hit 1.7 or 1.9GHz does not guarantee that yours will.

i know you want to stay @ 166 FSB, but why don't you experiment with lower FSB speeds and higher multipliers to see if the cpu will go higher?

just curious. what are you ram settings like? super agressive? very relaxed?

 

[svidanag]

What is your core voltage? You never said it. This usually needs to be raised a bit to reach 2 gig.

 

[magomago]

Originally posted by: drewski
why do you say that you should be able to? did you get a higher overclock on a different system with this cpu?

sorry to play devil's advocate, but every cpu is different and just because a cpu with the same stepping and build week as yours hit 1.7 or 1.9GHz does not guarantee that yours will.

Anandtech said they SHOULD hit about 1.8-1.9 tops.

I am trying to hit 1.6 That would be pretty sad if tbreda (regardless of the week) coudn't overclock about 190 mhz

My Vcore is 1.552

and my 5v is 5.206

and my 3v is 3.306

and again at this momet my 12v is 12.608

 

[Killrose]

Bring your vcore up to about 1.7volts and see what you get. All your PSU readings look fine.

 

[magomago]

Won't that fry the processor? I've heard that you should increase it by .05 volts at a time to be safe

And isn't that a little weird? HAving to raise the Vcore on a relatively speaking low overclock? I've seen other people with this 1700+ hit around 1.7~ish b4 raising the vcore to attempt 1.9ghz

 

[magomago]

i just tried upping the vcore in the bios to 1.525 from 1.5 and it wouldn't post

isn't a .2 jump in the vcore a little execsiive?

 

[AtomicDude512]

Originally posted by: magomago
For my specs, check out my sig as its written right there.

First let me adderss a few issues:

a) There is "healthy" flow of air
b I have a Volcano9 cooling the processor with AS3 that was properly applied




Okay...now I'm trying to say on the 166FSB because I was syncronous operation with my ram (And I don't want to push my ram further because I don't have heatsinks for them)

Here is how I overclocked:

I lowered my multiplier all the way and started at 166. It would post and each time I raised the multiplier I left it for two straight days running p95 in the background (including nights when I was sleeping).

I got all the way to 9.5 and its very stable.

at 166*9.5 I am 27 Idle and 34-35 full load (OR so Asus Probe says...add about 10 degrees to both to probably get the real deal) on the CPU

Now when I push it to 10 on the multiplier (I am using 1002.001 Bios) Windows won't boot and it gives me some blue screen with writing aLL over saying "Windows could not boot b/c of an error...reboot or try reinstalling" something to that effect...

I try and it doesn't work.

I lower the multiplier down to 9.5 and it runs perfectly.

This is win2kpro SP3 btw.


Does anyone have any idea? THE cpu is cool, and according to people on AT my tbredA shouldn't have too much trouble hitting 1.6ghz (even AT says their limit is 1.8-1.9Ghz) I'm trying to stay at a 166FSB for syncronous operation since its "optimal" for the nforce2

Thanks!

Look people! He has a Palomino! He cant attain as high OCs as you could with a Throughbred.

 

[magomago]

Its not a Palomino. I got it from Newegg where they guaranteed me the t-bred A

and it goes: AXDA in the serial number....

 

[Killrose]

Originally posted by: magomago
i just tried upping the vcore in the bios to 1.525 from 1.5 and it wouldn't post

isn't a .2 jump in the vcore a little execsiive?

Can you hear my laughter? NO, .2volts is nothing to worry about. Remember, the T-bred/B's are running 1.6v stock, so if you expect to aproach the 1.8-2.0gig mark you'd better add some voltage.

 

[EdipisReks]

Originally posted by: magomago
i just tried upping the vcore in the bios to 1.525 from 1.5 and it wouldn't post

isn't a .2 jump in the vcore a little execsiive?

get that sucker up to 1.85, and then see what it does.

 

[magomago]

I just upped it to 1.6v and now am running 166mhz

Hehe I can feel the speed

So you were right...

do you think if I upped the multiplier again I'd need more voltage moving through the processor? IE: 10.5 or 11.0 ?

Right now I'm prime95ing it. If its fine for the next hour I'l ll up to to 10.5 followed by 11

 

[magomago]

though i just checked my temps and they jumped up 8 degrees celcius...

Normally when I'm doing casual net surfing I am at 32 degrees celcius....

but right now i'm at 40 (maybe its p95?)

but does that seem too large of a jump?

 

[magomago]

I'm doing 166*10.5 right now

I was doing 166 * 11 but the computer froze after about 15 minutes...

I'll plan t otry it again after a while at this speed

 

[Killrose]

Don't worry about bumping the voltage a little more. Just keep an eye on your temps. I would say after a couple of hours at load the temp should be just below 50C. I would bump it up to 1.65volts, and I bet you will be stable to at least 1.8gig (2200+speeds).

 

[Blooz1]

I have an "A" I was using before I got the "B" I'm now running, and it liked 1.65-1.75V. It ran 1.92HGZ forever at that voltage...completed over 24 hours of Prime95, also....

 

[magomago]

I'm at 1.7v right now 166*10.5

I can't hold 166*11 for more than a quater of an hour...the first ttime i tried it froze. The second time I tried it rebooted on me after a while


Should I up it to 1.8v and see if i can hit 1800+? Or is it the limitations of the tbred a?

If its the limitation I'll live with my current setup and come the release of athlon64 I'll pop in the best Barton, another 512 stick of ram, and upgrade the videocard because Its going to be a looong while before they get all the kinks out of it

 

[Killrose]

I would say increase the voltage to 1.75 and see if it is stable. Just keep an eye on temps, if they are within reason then you can try a higher setting. What you might consider is running your ram at a different speeds with multiplier combinations to achive your max total overclock.

 

[chizow]

I wouldn't bother trying to push it; I had the same issues with my T-bred A 1700+; FSB stalled around 174mhz FSB. At first I thought it was just my Samsung PC2700, but later I found I could run it up to 200mhz FSB no problems (maybe even more). Its probably a general limitation of the chip; perhaps AMD did more to the chip in its B revision other than adding the additional layer to the core.

Chiz

 

[magomago]

I pushed it up to 1.75 and at 166*11 it seems stable...been running p95 for about 30 minutse and will not leave it connected to the net(I am downloading the Splinter Cell Demo )

If all goes well, it will still be on tomorrow morning...and then i'll use it normally and on the weekend i'll try some games to see if there is any stall there...

Hopefuly though I'm stable @ 1.83

 

[Killrose]

Alright. lookin good. You can always play with your FSB speed incrementally to work it up or down just a hair either way to find that sweet spot. I would guess you temps are going to be mid to low 40's at that setting so you should be fine as long as it stay's stable.