Question about OC

[Avalon]

There's a posibility it could be your PSU, looking at your other thread. While a 350w Antec is fine for budget systems, yours is relatively high end (and overclocked). I bet your 12v line on that PSU is struggling and is causing your problem.

Not that software programs are to be trusted entirely, but download speedfan and check your 12v line, if your motherboard supports 12v monitoring (I'm pretty positive it does). If it's 11.6-11.7 or less, your 12v line is probably being stressed.

I used to have a decent 420w Enlight PSU w/18A on the 12v rail powering a DFI NF3, Sempron 2800+ @ 2.6, 2x512MB Geil PC3200, and a Radeon 9700. Worked great, but once I replaced my 9700 with a 6800NU, my system was unstable, and I had to reduce my systems overclock to 2.4 because of it. My 12v rail with the 9700 used to sit at about 11.85v, and with the 6800NU in, it dropped down to 11.60v-11.72v. Bought myself an Enermax 460w PSU w/33A on the 12v line, and my problems were solved. My overclock could go back up to 2.6, and I had room to overclock my GPU as well. My 12v rail at the time was sitting at 11.96-12.04v after that.

I remember I tried putting a 6800NU into my bro's AXP 2000+ system with that Antec 350w, and he'd get graphical errors and lockups.

 

[ZL1]

Originally posted by: Avalon
There's a posibility it could be your PSU, looking at your other thread. While a 350w Antec is fine for budget systems, yours is relatively high end (and overclocked). I bet your 12v line on that PSU is struggling and is causing your problem.

Not that software programs are to be trusted entirely, but download speedfan and check your 12v line, if your motherboard supports 12v monitoring (I'm pretty positive it does). If it's 11.6-11.7 or less, your 12v line is probably being stressed.

I used to have a decent 420w Enlight PSU w/18A on the 12v rail powering a DFI NF3, Sempron 2800+ @ 2.6, 2x512MB Geil PC3200, and a Radeon 9700. Worked great, but once I replaced my 9700 with a 6800NU, my system was unstable, and I had to reduce my systems overclock to 2.4 because of it. My 12v rail with the 9700 used to sit at about 11.85v, and with the 6800NU in, it dropped down to 11.60v-11.72v. Bought myself an Enermax 460w PSU w/33A on the 12v line, and my problems were solved. My overclock could go back up to 2.6, and I had room to overclock my GPU as well. My 12v rail at the time was sitting at 11.96-12.04v after that.

I remember I tried putting a 6800NU into my bro's AXP 2000+ system with that Antec 350w, and he'd get graphical errors and lockups.

too high a voltage on the rail is also bad, if its more than 5-10% in either direction there is a problem

D

 

[Le Québécois]

Ok, thanks for the help...Ill do some tests and post the result here.
Be sure to come back in a day or two

Oh one last thing...do I need to stress the computer when I look at the voltage? Or once It's set in the Bios it won't change( stress or no stress on the computer)?

 

[Le Québécois]

Note done any testing..but here are the V readings I get with Everest (pretty cool program from what i see). BTW it's a nice thing to be able to read my GPU temp...I though only ATI of the XT series had temp reading ability.

CPU Vcore:1.41
3.3V:3.1
5V:4.95
12V:12.24 (that one seems kinda high to me..but I get the same reading when I use Speedfan BUT my MSI CoreCenter gives me 11.88V)

 

[Buck Naked]

Originally posted by: Le Québécois
I know my signature doesn't works...but I can't change it because of some change they made to the forum system some years ago because I have none standart characters in my user name...the é.

Sidenote- It is just linked wrong. Put "rig" before id=22254
like this - http://www.anandtech.com/mysystemrig.html?rigid=22254

 

[Le Québécois]

Originally posted by: Buck Naked

Originally posted by: Le Québécois
I know my signature doesn't works...but I can't change it because of some change they made to the forum system some years ago because I have none standart characters in my user name...the é.

Sidenote- It is just linked wrong. Put "rig" before id=22254
like this - http://www.anandtech.com/mysystemrig.html?rigid=22254

Thx...but I already know...but like I told..Can't change anything concerning my account...not even my password..

 

[Buck Naked]

Originally posted by: Le Québécois

Originally posted by: Buck Naked

Originally posted by: Le Québécois
I know my signature doesn't works...but I can't change it because of some change they made to the forum system some years ago because I have none standart characters in my user name...the é.

Sidenote- It is just linked wrong. Put "rig" before id=22254
like this - http://www.anandtech.com/mysystemrig.html?rigid=22254

Thx...but I already know...but like I told..Can't change anything concerning my account...not even my password..

O, I C.
Have you asked a Mod to help?

 

[Le Québécois]

Not yet..but I will.

 

[ZL1]

Originally posted by: Le Québécois
Note done any testing..but here are the V readings I get with Everest (pretty cool program from what i see). BTW it's a nice thing to be able to read my GPU temp...I though only ATI of the XT series had temp reading ability.

CPU Vcore:1.41
3.3V:3.1
5V:4.95
12V:12.24 (that one seems kinda high to me..but I get the same reading when I use Speedfan BUT my MSI CoreCenter gives me 11.88V)

think %, IMO the 3.3 is a bit low
are these under load or idle ?
did you check your vcard temps in the vsection ?


D

 

[Le Québécois]

Video card temp seems low...39-40C...
the voltage result are at idle.

 

[ZL1]

Originally posted by: Le Québécois
Video card temp seems low...39-40C...
the voltage result are at idle.

temps look good, but try monitoring the volts at load


D

 

[Le Québécois]

OK, some result...
Dont ask what I did (bios settings) to OC...all is explain in this topic if you take 2 min to read it all...

The result are at 2.4Ghz first at Idle and after 20 min of prime95:
Sensor

I dont know yet if the computer is stable or not but the only difference from when it was unstable is that I gave him a +0.05V to the Vcore this time. ( normal behing 1.4v, when computer unstable 1.47V and this time 1.52V ).

Oh almost forgot....AGP is set a 66 and PCI at 33...both confirm by CPUID ClockGen

And..is it normal for my Stock HSF to run at 4500RPM? seems high to me.

 

[Avalon]

Originally posted by: Le Québécois
Ok, thanks for the help...Ill do some tests and post the result here.
Be sure to come back in a day or two

Oh one last thing...do I need to stress the computer when I look at the voltage? Or once It's set in the Bios it won't change( stress or no stress on the computer)?

Well, if your voltage rails (if any) are lagging at idle, when you stress the system you should see a more pronounced drop in railings.

 

[deanx0r]

This might help:

-If you are using SATA drives, make sure you are using the connections that are the closest to the CPU (SATA3/4) as the one on the bottom are not locked when overclocking.

-Depending of the version of your BIOS, you might need to set the AGP lock to 67MHz to make sure it kicks in.

-To change the HT multiplier, do not use enter, but -/+.

 

[deanx0r]

One last thing...

if you are using BIOS 1.9, make sure to update it as it is sketchy.

 

[Le Québécois]

No SATA, BIOS 1.A0 ( latest ) HTmult set at 4x ( thanks for the tips but I knew it almost 1 year ago...didn't take me much time to realize the damn BIOS crashed every single time when you use enter ).
What do you mean by AGP lock to 67 to make sure it kicks in? The computer is unstable ? dont boot?

 

[Avalon]

Well, for some boards, to get the PCI/AGP lock to kick in, you had to set the AGP frequency to 67mhz. I don't know if your board applies or not, but I suppose it's worth a shot since it's so simple.

 

[Le Québécois]

Well.....After more than one day of running with no problem( when OC )...the computer was closed for the whole 3 labor day weekend...came back home just 30 min ago...open up the computer.....computer crash after 5 min...so..back to square one..going to test it not OC for another couple of days to see if last week wasn't just luck...

Just a question like that...is 1.55v normal for a OC cpu to run from 2ghz to 2.4ghz?