AMD® Phenom™ II Overclocking Thread

gareth170 · 5 Mar 2010 at 19:32

gurusan said:
I was referring to the voltage,

ohhh ok. well i'll do that if prime95 fails.

but normally the way i know if its a cpu-nb or ram issue is that prime95 just stop and shows a error but if it a core clock/vcore issue it would do a blue screen..

what i had was a blue screen..

PhoenixUK · 5 Mar 2010 at 19:33

I dunno what's all the hate about but temperature on those DOES make a difference.
Take for example my CPU will crash as soon as it gets 50-52c, doesn't matter if I run it at 3.6, 3.8 or 4.0

As long as I can keep it under 48-49c it's fine, I see it hits 50-51 for 3sec = crash.
Stimulated few times to check by switching heating on/off and if my room gets hot then as soon as the CPU is loaded enough to hit 50c+ it's instant crash.

If I have heating off, or even more, keep the window open and then can keep CPU under 48-49c, even better 45-46 it can happily run prime for ages, then it jumps 2c up and crash.

Might be different for every CPU but seems like these things are very sensitive to temps.

Hence I guess the huge LN2 OCs, if I remember well pII had the highest quad clock so far ? You just need to keep them very cool. Best is anything under 40c.

gareth170 · 5 Mar 2010 at 19:41

well im at 48-52c now which been there for about 2hours with 1.45v and its not crashed yet so it's not a heat issue...

but as said it could have been because i was using my cam on skype while running prime95 that made mine crash.

i may put the voltage down again and try prime95 again.

Big.Wayne · 5 Mar 2010 at 19:56

Holy cow! . . . just got home and found I've taken delivery of a big brown box, compliments of AMD® for you guys!

I started unpacking it but I got excited and stopped, just wanted to savour the moment and imagine it was something uBer!

Big.Wayne · 5 Mar 2010 at 20:28

Hello again, just read one or two people have been having problems with BSOD's, I know how you feel as I've been trouble-shooting a seemingly random blue screen myself . . . even after a fresh install with the system at stock, all hardware tested rigorously (RAM, Chip, PSU, Disk etc) but had no joy, was getting a reboot once every week while playing audio, DVD's etc, normally after I took a video or audio track off pause . . . *Blue Screen!*

Anyway it seems the problem was a VIA HD audio driver issue on a ASUS M4A785D-M PRO running Windows XP Pro (SP/3) and followed some tips and force-installed a MS update (kb888111) which seems to have done the trick!

While trouble-shooting I came across this tool which proved to be quite handy, check it out!

BlueScreenView v1.20

gareth170 · 5 Mar 2010 at 20:46

well now prime95 as stoped with a error after 3hours, so i guess it's a cpu-nb or ram issue now.

Elfmeister. · 5 Mar 2010 at 20:52

Pesky little VIA HD Audio, I never liked it

I bought a Xonar D1 to replace the said culprit as I was getting a few feedback issues.

Big.Wayne I have found a option to disable IGP as it can be used in tandem with another GPU, what section controls this in regards to OC as I feel maybe disabling it would be slightly less strain on the overall clock (hopefully).

Sorry but I have to ask, what's in the box? :confused:

Big.Wayne · 5 Mar 2010 at 20:56

Elfmeister, I didn't know the Radeon® HD4200 IGP could be disabled actually? . . . I will have to have a snoop at the BIOS as I didn't really give it a good check through since updating it!

The box is full of [unknown booty] for the next wave of freebies from AMD® for contributers to the thread! :cool:

nelcon · 5 Mar 2010 at 21:18

Well the writing on the box might give it away.

Big.Wayne · 5 Mar 2010 at 21:25

Haha!

unpacking now!

rypt · 5 Mar 2010 at 22:36

Martini1991 said:
But it does.
Phenom II's don't have anywhere near the same thermal coping capabilites of C2's, i7's etc.

And how'd you describe overheating causing BSOD? It's got to be a certain temperature where it dies, and one where it doesn't, the difference? 1C.

Except it doesn't, it does not suddenly die at 80C while working at 79C... it progressively gets a higher chance of failing, it is not a sudden binary action.

Big.Wayne said:
Martini1991
Hello there!, not sure if you read the welcoming post, sorry to be a pain but could you please edit your last posts to not use excessive quotes please, #455, #458, #460, #464, #466, #470, #475, #477

Quoting rules

Big.Wayne said:
Anyway it seems the problem was a VIA HD audio driver issue on a ASUS M4A785D-M PRO running Windows XP Pro (SP/3) and followed some tips and force-installed a MS update (kb888111) which seems to have done the trick!

People STILL use XP :confused:

Martini1991 · 5 Mar 2010 at 23:47

A Phenom II shouldn't top more than 62C under load..
As proven, it does make a difference.
And by die, I mean BSOD.

rypt · 6 Mar 2010 at 00:01

Martini1991 said:
A Phenom II shouldn't top more than 62C under load..
As proven, it does make a difference.
And by die, I mean BSOD.

So it's always fine at 61C then? I think not.

Martini1991 · 6 Mar 2010 at 09:05

rypt said:
So it's always fine at 61C then? I think not.

Did I say that?..
Each CPU handles temperature differently..
My Phenom II can handle temperatures of 63 and maintain stability. Another guy I know, has a C2 955 that will BSOD at 60C.

gurusan · 6 Mar 2010 at 09:09

The point that we are trying to make is that if a CPU crashes with a temperature variation of a degree, or even a few degrees, then that is not stable.

...unless you happen to live in a 24/7 air-conditioned room, and even then the temperature will fluctuate around the set point by a degree or 2 at a minimum.

Martini1991 · 6 Mar 2010 at 09:11

Run IBT maximum for 10 runs, record the maximum temperature.
Go play a game for an hour, record temperature.

The temperature will be a lot lower, hence why it doesn't BSOD..

gurusan · 6 Mar 2010 at 09:20

And that will tell me what exactly? :confused:

To test your theory you would need to run IBT and record max temp. Then increase the ambient temperature, recording max CPU temps until a crash, then repeat the whole thing a few times to verify the results.

And if it turned out the CPU really was prone to crashing with a temperature variation of only a few degrees then it's not a stable clock.

Martini1991 · 6 Mar 2010 at 09:21

You're missing the point.
IBT isn't a true example of real world usage, a game is.

At a certain temperature, it'll BSOD, at another temperature, it won't BSOD.
Hence the term overheating.

gurusan · 6 Mar 2010 at 09:27

Bottom line is that if your CPU is not mathematically stable, or crashes when the ambient temperature rises by 5 degrees because your cat farted in your room...then it's not freakin' stable at all.

Martini1991 · 6 Mar 2010 at 09:28

gurusan said:
Bottom line is that if your CPU is not mathematically stable, or crashes when the ambient temperature rises by 5 degrees because your cat farted in your room...then it's not freakin' stable at all.

Read up...
Phenom II's really like the cold, if it gets too hot, unlike the Intel CPU's, it'll BSOD.

But hey, what do I know?. :rolleyes:

PhoenixUK said:
I dunno what's all the hate about but temperature on those DOES make a difference.
Take for example my CPU will crash as soon as it gets 50-52c, doesn't matter if I run it at 3.6, 3.8 or 4.0

As long as I can keep it under 48-49c it's fine, I see it hits 50-51 for 3sec = crash.
Stimulated few times to check by switching heating on/off and if my room gets hot then as soon as the CPU is loaded enough to hit 50c+ it's instant crash.

If I have heating off, or even more, keep the window open and then can keep CPU under 48-49c, even better 45-46 it can happily run prime for ages, then it jumps 2c up and crash.

Might be different for every CPU but seems like these things are very sensitive to temps.

Hence I guess the huge LN2 OCs, if I remember well pII had the highest quad clock so far ? You just need to keep them very cool. Best is anything under 40c.

I can also concur with this, I can add Vcore to increase the temperatures, and at 3.4GHZ it'll BSOD when it gets too hot.