AMD® Phenom™ II Overclocking Thread

gareth170 · 8 Mar 2010 at 20:18

now 7-7-6-24 1t 1.75v, just testing it now.

i couldn't get 1333mhz cl5 working

dougie175 · 8 Mar 2010 at 20:19

Ok Big.Wayne ill get reading.

Thank You

joewm18 · 8 Mar 2010 at 20:31

Hey all,

I'm running my 965 at 3825mhz, 2600mhz cpu-nb, 2400mhz HT with 1600mhz RAM.

When stress testing it using intel burn, i have realised that it will get to a point where the voltage will suddenly drop from 1.45 down to 1.1 for no reason - when it does this the Speed (gflops) result is always less. Temps never go above 52 degrees C but it seems like it's throttling for some reason??

My voltage is set to 1.5v in the bios however when looking at HW monitor it is always well below this, loadline calibration is set to auto in the bios. I have tried disabling loadline calibration - this results in the voltage being bang on or over 1.5+v and subsequently higher temps, the drop to 1.1v still occurs however so it can't be the loadline calibration.

Anyone got any ideas why voltage may suddenly drop this huge amount after a while of stress testing?

eddyc · 8 Mar 2010 at 20:48

Not sure I am afraid it does sound like temp throttling though. Have you tried opening the window to reduce temps and then trying again?

But one thing to note: setting loadline calibration to 0% is not disabling it. In fact that would cause the vcore to increase under load. I think most people get the best results around 16 or 19%.

gareth170 · 8 Mar 2010 at 20:55

if CnQ is on then thats why. because IBT have breaks in between each test which would mean it'll drop in the breaks

Big.Wayne · 8 Mar 2010 at 21:12

I wonder what O/S joewm18 is using? . . . Windows XP doesn't set-up Cool n Quiet automatically . . . . unless you install all the stuff from the mobo CD-ROM, so I'm thinking it's maybe Vista/Windows 7?

Having said that I've not used an AMD under Windows 7 but does that "organise" C n Q by default?

eddyc · 8 Mar 2010 at 22:01

yes. if it is turned on in BIOS then win 7 does it automatically. Power plan has to be low power or balanced. It will not work in performance mode.

Jumping on the bandwagon:

gareth170 · 8 Mar 2010 at 22:29

now i'm really confused, why is it stable at 1600mhz 7-7-6-24 1t 1.75v but not stable with 1600mhz 7-7-7-20 2t 1.75v or even 7-7-7-24 2t??

i know i need to run prime95 for longer but on 7-7-7-20/7-7-7-24 it would stop after about a hour.

Big.Wayne · 9 Mar 2010 at 00:21

gurusan & eddyc
Sorry to snoop guys but I have a question, can you tell me how much the *combined* cost of your processors & motherboard were please? . . . anyone else is welcome to spill the beans but I'm particularly interested to hear from those lucky folks that got a nice *unlock* and have an X4 running at 3.3GHz+ . . . . I'm thinking CPU/Mobo was approx £150 or so?

Big.Wayne · 9 Mar 2010 at 02:46

AMD® Temps

I'm interested to know what people's thoughts are about temperature monitoring on these chips? . . . I know some people use the Core measurement while others use the TMPIN0 as a guide but personally I'm still not decided which one is more accurate?

If anyone has some *technical* info on this subject that would be good, I'd like to know where the sensors are that pick up both readings . . . thanks in advance! :cool:

Cookeh · 9 Mar 2010 at 09:34

Bit of a Star Wars fan are we Wayne?

When I get my new CPU, Ill be sure to post results in here.

Already read it - only took 1 hour, no biggie Dougie

eddyc · 9 Mar 2010 at 09:36

My combined cost was £145. I use TIPIN0 for my temps - my unlock means I cant read core temps anyway. But I think the max temps referred to in the AMD documentation are actually the overall temps not the core temps anyway.

gurusan · 9 Mar 2010 at 10:09

I bought 2nd hand, I hate buying things new. Anyhow I paid 145 for mobo and cpu combined as well

bigjimmyauk · 9 Mar 2010 at 10:12

Even if you disable a couple of cores you lose the ability to monitor.

Gigabytes easy tuner 6 allows you to activate locked cores and also to disable cores. This is a piece of software after you clicky disable or activate core the comp restarts applies it and off you go. I use this feature to play a couple of games i have that don't have support for quad core CPU's. Only problem tho like i said was disabling 2 cores loses the ability to monitor the temps which is a bit worrying sometimes

joewm18 · 9 Mar 2010 at 10:16

Thanks for the replies, i am running win7 64bit, cool + quiet is disabled in the bios, does it have to be disabled somewhere in the os too? I will try the loadline calib % + see if that affects things.

bigjimmyauk · 9 Mar 2010 at 10:25

joewm18 said:
Thanks for the replies, i am running win7 64bit, cool + quiet is disabled in the bios, does it have to be disabled somewhere in the os too? I will try the loadline calib % + see if that affects things.

once cool and quiet is disabled from bios it won't work at all the OS should not implement it again.

There are a couple of other options to turn off aswell to make sure your fans will run at full or with another program you choose.Can't remember exactly what they are best thing to do is go into bios let your fan take control then turn off the options until your fans spins up to full speed that way you know cool and quiet is fully disabled

gareth170 · 9 Mar 2010 at 10:55

Big.Wayne said:
but personally I'm still not decided which one is more accurate?

well amd says the cpu temp is the temp you should be monitoring.. i guess the "core temp" is software generated

which means in everest its this:

and in HWmonitors its either TMPIN0 or TMPIN1... mines TMPIN1

also Wayne yours looks like its TMPIN1 not TMPIN0... TMPIN0 is the motherboard temp on mine

~>Dg<~ · 9 Mar 2010 at 12:57

best benchmark for temps = bfbc2 . this punishes your cpu or heats it more than any other prog ive tried.

Big.Wayne · 9 Mar 2010 at 13:32

Hey ~>Dg<~, I wonder if that is because your GPU is getting hot and passing it's temps straight onto the CPU . . . I say this because I'm swapping between a GPU and IGP every few weeks or so and I notice how much hotter the CPU gets with a GPU installed, kinda makes sense when you think about it! :cool:

Uriel · 9 Mar 2010 at 13:51

If your CPU temps jump up when your GPU is loaded, it's time to look at case airflow. I ended up making a new mesh intake to replace my 5.25" bezels and added a temperature sensative fan controller (mCubed fanamp). I'm running 2 120mm front intake fans and 1 120mm rear exhaust fan, plus the (already temperature / load sensitive 120mm PSU exhaust fan). My fans are normally set to an inaudible level but I have a temperature probe on my CPU heatsink, which is set to send the case fans to 100% when the heatsink gets warm (not sure what the temp is but at least 3 cores need to be on 100% load for it to work). The CPU fan is controlled by the motherboard but I have it set to 100% when the CPU hits 47°C CPU.

It seems to work very well. Prime95 alone takes a minute or two to make the case fans spin up to 100%. Add 3DMark06 to that and they spin up immediately. It makes a huge difference to my CPU load temp - around 5°C cooler in Intelburn or Prime95. It's silent for genral use, HD movies and even some games. Under high load I get the extra airflow I need.