Dual Core Opteron Thread #2

[QuietIce]

What's your vCore now ...?

[Damolition]

My Opteron 185:
OSA185DAA6CD
LCB9E 0630BPMW



Max overclock:



Rock Solid

[stealth]

I have a opty 185 @ 3029 (13*233) on air but the vcore is too high for comfort.. which equals to too much heat. If there any other settings i can change to i can boot with lower vcore?

Hi,

That was about a week ago,now things are worst.

When air temp is over 40ºC as it is at the moment here in Greece and you are on air cooling you have three options,to turn off the PC and forget it until temps go down,to run at stock speeds(which is not much fun)or to overclock your system with the lowest voltage you can,trying to keep temps as low is possible.

Now even with the voltage at 1.3v load temps are over 65ºC so i need to lower the CPU speed.

Well,there are not special settings for that,you just have to try and see which is the lower voltage you can reach a specific overclock.

Let's say you want to reach 3.0Ghz.With the voltage you have now you can do it,then put the voltage one step down and try to boot.

If you can do 3.0Ghz lower the voltage for another step and try again,keep lowering the voltage until you will not be able to boot.

Then set the voltage to where you was able to boot and stress it(i use OCCT to test for stability http://www.ocbase.com/perestroika_en/index.php?Download )to see if is stable,if not then rise the voltage for a step and test again.

Keep doing this until you find the lower stable voltage you can run 3.0Ghz.
When you stress the system for stability monitor temps with CoreTemp
http://www.thecoolest.zerobrains.com/CoreTemp/ ,if load temp goes at 60ºC then you need to lower the CPU speed,also lower the voltage and try again.

A good overclock is the one which run stable and cool.

I hope this helps.

What mobo you have and what is your VCore now?


stealth

[Smiffy]

Hi All

Picked up a couple more. LCBQE 0712UPAW

Smiffy

[lazy]

my current vcore is 1.4v on an Asus A8N32-SLI Deluxe SPP. (pretty much the same mb as you)
my temps are around 44 @ idle only after have my Zalman 9700 on max with 3 fans running on medium spd.
While im gaming, it goes up to about 54-57 but once i start running some stablity test (Orthos / Dual Prime *small Ftts and such it goes up to 62c

Not sure what my ambient temps are but i have my AC on 65F when im home, so i doubt the temps are gonna be dropping anymore then 44 on idle

[stealth]

my current vcore is 1.4v on an Asus A8N32-SLI Deluxe SPP. (pretty much the same mb as you)

1.4v in BIOS?Have you Overvoltage CPU VCore enabled?


stealth

[lazy]

i dont think i changed any other option.... so no


btw my stepping is LCBBE 0628 BPMW
is that a good or a bad stepping?

[stealth]

i dont think i changed any other option.... so no

btw my stepping is LCBBE 0628 BPMW
is that a good or a bad stepping?

To add or to lower the voltage on this mobo you need to enable Over Voltage CPU VCore in BIOS.

This mobo will add 0.205v to the value you have in BIOS when you enable OverVoltage CPU VCore,so if you want your voltage to be something like 1.305v in windows the value you need to put in BIOS must be 1.1v.(always you need to add to the value you have in BIOS 0.205v to find your correct voltage in windows,if you have Over Voltage CPU VCore enable).

If you want your voltage to be 1.4v then the value you need to put in BIOS is 1.2v,so 1.2v in BIOS plus 0.205V OverVoltage CPU VCore adds,1.405v in windows.

This is really important to understand because if you enable OverVoltage CPU VCore in BIOS and leave the voltage at 1.4v,then your voltage will be 1.605v in windows!!


I don't know much about steppings but there are other guys in here they can tell you about it.

stealth

[lazy]

Then how come cpu-z says otherwise? is there another program i can rely on to give me the correct voltage?

[freakBYnature]

Then how come cpu-z says otherwise? is there another program i can rely on to give me the correct voltage?

Take a look at this.... cpu-z is pretty accurate with my mobo.

[lazy]

is there another program i can compare cpu-z with for the voltage?

[stealth]

Then how come cpu-z says otherwise? is there another program i can rely on to give me the correct voltage?

If you have a look at this http://img177.imageshack.us/img177/318/89268065op5.png ,CPU-Z gives the value i have in BIOS...almost,(1.1125v in BIOS) and AI Booster and probe give 1.3v,which is not correct also(1.3175v is the correct voltage),but is the closest i can get.

CPU-Z sometimes will give you the votage in BIOS and other times the voltage in windows,use AI Booster,PC Probe,SpeedFan,Hmonitor or SensorsView Pro(the last two aren't freeware)and see which will give the closest to your calculation.

But mostly you have to rely on your calculation when you have OverVoltage CPU VCore enabled,the value in BIOS plus 0.205v=your correct voltage.

stealth

[freakBYnature]

But mostly you have to rely on your calculation when you have OverVoltage CPU VCore enabled,the value in BIOS plus 0.205v=your correct voltage.

stealth

Amen. If one looks at it like this it gets a whole lot easier.

1. What you set it for is one thing
2. What it gets is another thing
3. Will it measure it correct is the third
4. Is the SOFTWARE correct?
5. Is your PSU giving correct current?
6. Does your board have a vdroop?

These are just a few things to consider, A8N32-SLI DELUXE overvolts just a notch, so setting 1.375V in bios gives me 1.41V in windows, under load that is, when idle it says 1.42~1.44V, so it may overvolt from default, so therefore you should be careful when giving it more juice, anytime!

[stealth]

A8N32-SLI DELUXE overvolts just a notch, so setting 1.375V in bios gives me 1.41V in windows, under load that is, when idle it says 1.42~1.44V, so it may overvolt from default

This is a vdroop you mention above but i am talking about idle values.

http://support.asus.com/faq/faq.aspx...Language=en-us

If we consider that all the hardware on the system works fine then,from what i know at defaults this mobo adds 0.005v for the NOS and AI Booster futures to be able to reach the 10% overclock.

If i enable OverVoltage CPU VCore in BIOS then the system adds 0.2V which is too much voltage,at least this is what happen on my mobo.

Also this is what i have read in all forums for the A8N32-SLI deluxe mobo.


stealth

[lazy]

alright i double checked my motherboard but i do not have overvolt enabled.

between the programs i use*speedfan, cpu-z, coretemp* all show the voltage and out of all of em Coretemp has the exact value as the bios.

After an OC, if the computer locks up or fails orthos in the 1st 5mins on a core, what does this mean?

[gromet]

alright i double checked my motherboard but i do not have overvolt enabled.

between the programs i use*speedfan, cpu-z, coretemp* all show the voltage and out of all of em Coretemp has the exact value as the bios.

After an OC, if the computer locks up or fails orthos in the 1st 5mins on a core, what does this mean?

Means your system is unstable.

What test in orthos where you running?

You can test CPU (small FFTS)
You can test RAM (large FFTS)

then you can blend

If you failed doing blend...try running just the CPU (small FFTS) and see what happens. IF you pass that after 5+ hours with no errors, no heating issues (watch you temps with several programs)...Try running the RAM to see what happens...

If your failing on CPU stress (small FFTS)....You have a few choices...Increase the volts (its not as bad as it sounds, I running 1.57 on my opty 165)...With higher volts means slightly higher temps, you just need to watch your temps. Depending on your board, make sure HT is around 1k

If your failing on the RAM....You can increase your timmings to see if that helps, increase ram voltage (dont go too high though, find out what your ram is suppose to run @), or in most cases put in a larger divider to keep the ram running close to 200mhz (ddr400) or what ever ratting your ram is.

[stealth]

After an OC, if the computer locks up or fails orthos in the 1st 5mins on a core, what does this mean?

I suppose it means that you haven't test every part of your system separately and by guessing you never going to find out.

Is it your mobo that can't do more FSB?Is it your Ram that can't go that high?Or is it your CPU that is not stable that high?Heat issue?

You need some more voltage on your CPU or your Ram?May you can loose a bit Ram timings.See what i mean?

stealth

[lazy]

i did lower the voltage last night * i was trying to see how low i can keep my voltage. and also see what my max FSB for this motherboard is.

my memory timing is 1t 3-4-4-12 with my stock timings @ 2-3-2-5
divider was @ 250 but i changed it to 233

[freakBYnature]

This is a vdroop you mention above but i am talking about idle values.

http://support.asus.com/faq/faq.aspx...Language=en-us

Vdroop - when volt is HIGHER than what it should be? I assumed vdroop was that it was lower than set.

If we consider that all the hardware on the system works fine then,from what i know at defaults this mobo adds 0.005v for the NOS and AI Booster futures to be able to reach the 10% overclock.

If i enable OverVoltage CPU VCore in BIOS then the system adds 0.2V which is too much voltage,at least this is what happen on my mobo.

Also this is what i have read in all forums for the A8N32-SLI deluxe mobo.


stealth

Yeah, 0.205V to be excact... but enabling overvolt makes it more dead solid than not, so what you do if you want 1.5V is that you set vcore to 1.3V and overvolt on, which is 1.3 + 0.205 = 1.505V

alright i double checked my motherboard but i do not have overvolt enabled.

between the programs i use*speedfan, cpu-z, coretemp* all show the voltage and out of all of em Coretemp has the exact value as the bios.

After an OC, if the computer locks up or fails orthos in the 1st 5mins on a core, what does this mean?

Probably the consequence of you putting on a 250 divider on RAM, if not you should lower your OC or raise volts... mem timings can be FUBAR as well.

i did lower the voltage last night * i was trying to see how low i can keep my voltage. and also see what my max FSB for this motherboard is.

my memory timing is 1t 3-4-4-12 with my stock timings @ 2-3-2-5
divider was @ 250 but i changed it to 233

This can make any motherboard unstable, setting dividers like that. The highest SMART divider (actually CPU 1:1) is 200 or DDR400 (which are the same and isn't a divider at all). Going below this is great, but not above. So setting it to 233 or 250 makes the bandwith go down.

And by the way, PC4000 or if you want DDR500 is tested with an FSB of 250... not a divider 250, so if you want your CPU to be stock and your RAM to go stock as well you'd be much better off with lowering your cpu-multi, leaving RAM at 200 and raising FSB to 250!

[stealth]

I think we comfuse each other,we say the same things with different words

"so setting 1.375V in bios gives me 1.41V in windows, under load that is, when idle it says 1.42~1.44V"

Vdroop is when the voltage drops under load.

http://www.xtremesystems.org/forums/....php?p=1729388

Asus support page says the same thing.

"so what you do if you want 1.5V is that you set vcore to 1.3V and overvolt on, which is 1.3 + 0.205 = 1.505V"

This is exactly what i do when i overvolt my CPU,i don't know any other way.

stealth

[freakBYnature]

I think we comfuse each other,we say the same things with different words

"so setting 1.375V in bios gives me 1.41V in windows, under load that is, when idle it says 1.42~1.44V"

Vdroop is when the voltage drops under load.

http://www.xtremesystems.org/forums/....php?p=1729388

Asus support page says the same thing.

"so what you do if you want 1.5V is that you set vcore to 1.3V and overvolt on, which is 1.3 + 0.205 = 1.505V"

This is exactly what i do when i overvolt my CPU,i don't know any other way.

stealth

Yeah, we are saying the same except for one thing You don't understand the point I'm making about A8N32-SLI DELUXE. When I said overvolt in this meaning I didn't mean the "enable overvolt cpu"-option in BIOS, but I was talking about the thing that when you set one vcore in bios it actually is given out a much higher voltage than set. Like I'm saying below.

1.35 = 1.39
1.375 = 1.44
etc etc etc

[stealth]

When I said overvolt in this meaning I didn't mean the "enable overvolt cpu"-option in BIOS, but I was talking about the thing that when you set one vcore in bios it actually is given out a much higher voltage than set.

If you mean without OverVoltage CPU VCore enabled then...,

I have the board for one and a half year but only one time i tried to set the voltage higher than stock without OverVoltage CPU VCore enabled,i saw that there is not effect and i didn't notice the difference you mention,i don't know why this happen.

"Over-Voltage CPU Vcore: When [Enabled] this setting adds 0.200v to the vCore setting (see below). For some reason the vCore setting below won't let you go above ~1.425v even though it looks like it does. If you need more voltage than ~1.425v you will need to [Enable] Over-Voltage CPU."

http://www.ocforums.com/showthread.php?t=468038

Maybe i should try more but i don't see the reason if it has no effect on the CPU without OverVoltage CPU VCore enabled.

stealth

[stealth]

Hi guys,

Can anyone tell for sure what one long and three short beeps mean on the A8N32-SLI Deluxe BIOS?

Don't tell me to google it because i already did it.

stealth

[Heikit]

Hi!

can anybody help me, my computer doesn't boot 2800mhz, i added voltage to cpu 1.450V and ram 2.9V, i put ram divider to 133 but nothing still


my sys:

DFI LP Sli-dr expert
opteron 165, good stepping
and Crucial Ballistix Tracer PC4000 2GB Kit

[freakBYnature]

Hi!

can anybody help me, my computer doesn't boot 2800mhz, i added voltage to cpu 1.450V and ram 2.9V, i put ram divider to 133 but nothing still


my sys:

DFI LP Sli-dr expert
opteron 165, good stepping
and Crucial Ballistix Tracer PC4000 2GB Kit

Set hypertransport multiplier to 3x or 4x, kinda depends on what your board will do, but at 3x it should boot anyway. Raise your RAM timings, overclocking isn't done in a minute, you need to use time to get to know your board, your cpu and your ram

And you shouldn't have to set 2.9V on RAM, it's to much without active RAM-COOLING!!! They get hot as hell there, it's micron chips on your crucial, and they like around 2.8~2.85V on stock/light oc

It may be that your cpu won't do 2.8 GHz, and anyway you shouldn't have to set 133 divider, 166 is very possible for pc4000 ram, it all depends on tref, trc and other non-performance subtimings, but they have to do with stability of if all