AMD FX OC'ers Club

[Alcpone]

This is because the core temperature reported by the on-chip sensor isnt really accurate up till a certain point.
Amd's temperature sensor only becomes accurate from 45C and up, so if your temperatures are below 45C, chances are the socket sensor will report something like 40, while the core temps will be still hoovering somewhere close to 30-35.

That explains alot, thanks.

What are peoples thoughts on upping the NB? Is it best to find the highest stable clock on the CPU then start upping the NB speed? Does it need to be in any kind of ratio to the RAM etc? Bit of a noob on clocking the NB tbh.

 

[Mathragh]

That explains alot, thanks.

What are peoples thoughts on upping the NB? Is it best to find the highest stable clock on the CPU then start upping the NB speed? Does it need to be in any kind of ratio to the RAM etc? Bit of a noob on clocking the NB tbh.

A link providing some insights in what part of the CPU leads to different kinds of performance benefits

In short, Higher is usually better, even when it comes to the FSB. Personally, I could go up to about 2560MHz on the NB before things started getting a bit unstable(weird quircks, not benchmark unstable perse), but ofc this may differ per CPU.

I'm not aware of any ratio between the NB and ram. It'll be fine for as long as the NB is clocked higher than the ram(iirc).

 

[Alcpone]

A link providing some insights in what part of the CPU leads to different kinds of performance benefits

In short, Higher is usually better, even when it comes to the FSB. Personally, I could go up to about 2560MHz on the NB before things started getting a bit unstable(weird quircks, not benchmark unstable perse), but ofc this may differ per CPU.

I'm not aware of any ratio between the NB and ram. It'll be fine for as long as the NB is clocked higher than the ram(iirc).

Another good bit of info, appreciate it muchly

 

[Durvelle27]

Just OC'd my new chip

 

[Mathragh]

Just OC'd my new chip


http://img708.imageshack.us/img708/4580/fx832044ghz.jpg

Grats dude temperatures look great! Looks like you might be able to sqeeze out another 100MHz!

 

[Batou1986]

Just OC'd my new chip


http://img708.imageshack.us/img708/4580/fx832044ghz.jpg

if that's stable under prime would you be willing to test it with OCCT AVX linpac for an hour im really curious to see if prime is missing things or linpac is throwing false errors.

 

[Durvelle27]

My CineBench 11.5 Scores

 

[Durvelle27]

if that's stable under prime would you be willing to test it with OCCT AVX linpac for an hour im really curious to see if prime is missing things or linpac is throwing false errors.

yea its stable its been running for awhile with no errors. And sure i could do that

 

[Alcpone]

Nice OC. I thought prime95 was gash for testing FX chips? I am probably going to settle on 4.3Ghz as it's getting towards 60c after a good while stressing, anything higher needs more volts (1.30v @ 4.3) so this is probs my limit for long term safety's sake. I have tinkered with my HT link speed and upped that 200Mhz, don't know if it will make any difference, will have to find a decent enough free benching software, I only have passmark and furmark installed atm.

 

[Durvelle27]

Grats dude temperatures look great! Looks like you might be able to sqeeze out another 100MHz!

Board won't let me go any higher than 4.4GHz. When i tried 4.5 system wouldn't boot

 

[Durvelle27]

if that's stable under prime would you be willing to test it with OCCT AVX linpac for an hour im really curious to see if prime is missing things or linpac is throwing false errors.

Maxed out at 56c and didn't go any higher

 

[Batou1986]

Maxed out at 56c and didn't go any higher

did it error tho that's what im really concerned about, whether OCCT AVX linpack is faulty or prime is not finding errors.

 

[os2wiz]

Board won't let me go any higher than 4.4GHz. When i tried 4.5 system wouldn't boot

Yes you would definitely need to upgrade your board to a Sabertooth if you want to overclocking to 4.6 GHZ or so. 4+2 phase control is very limitying for overclocks . Can't properly handle voltage and heat issues.

 

[Mathragh]

Yes you would definitely need to upgrade your board to a Sabertooth if you want to overclocking to 4.6 GHZ or so. 4+2 phase control is very limitying for overclocks . Can't properly handle voltage and heat issues.

According to This database, the VRM's should be good enough to handle some more load, with a 6+2 phase system.

Perhaps he could try to OC a bit with the FSB, to see if he can get over 4.5GHz?

Edit: also, you might want to play with the other voltages a bit, sometimes this can also help with reaching higher clocks.
Furthermore, tuning the VRMs a bit by for an instance allowing more CPU current to run through the CPU.

 

[os2wiz]

According to This database, the VRM's should be good enough to handle some more load, with a 6+2 phase system.

Perhaps he could try to OC a bit with the FSB, to see if he can get over 4.5GHz?

Edit: also, you might want to play with the other voltages a bit, sometimes this can also help with reaching higher clocks.
Furthermore, tuning the VRMs a bit by for an instance allowing more CPU current to run through the CPU.

Does that board have full LLC settings?? If not it makes it a lot more painful. I would still put a fan on the VRMS if nothing else to help with the temps. I have seen a bunch of boards mentioned here and on overclock.net that are 6+2 phase design that still give people problems. Perhaps the capacitors are not high enough quality???

 

[Mathragh]

Does that board have full LLC settings?? If not it makes it a lot more painful. I would still put a fan on the VRMS if nothing else to help with the temps. I have seen a bunch of boards mentioned here and on overclock.net that are 6+2 phase design that still give people problems. Perhaps the capacitors are not high enough quality???

Indeed, putting some cooling on the VRM's is always a good idea. However, I suspect that there is something else the matter here, probably it is either current-limited, some voltage other than Core voltage needs to be upped, or the VRM's need to be tuned in another way.

According to the asus site, the board is quite feature rich when it comes to overclocking.

Therefore, I suggest that you set the:
CPU and NB current capability to 130% and 120%,
Load line calibration to high, or ultra high,
and if possible, turn on all the power phases at all times(if the board has this option)

Furthermore, if you want to get over 4,4GHz I would stay by my advice of trying the FSB aswell as the multiplier.

Good luck!

 

[Durvelle27]

did it error tho that's what im really concerned about, whether OCCT AVX linpack is faulty or prime is not finding errors.

No errors

 

[Durvelle27]

Yes you would definitely need to upgrade your board to a Sabertooth if you want to overclocking to 4.6 GHZ or so. 4+2 phase control is very limitying for overclocks . Can't properly handle voltage and heat issues.

Its 6+2 power phase not 4+2

 

[Durvelle27]

Does that board have full LLC settings?? If not it makes it a lot more painful. I would still put a fan on the VRMS if nothing else to help with the temps. I have seen a bunch of boards mentioned here and on overclock.net that are 6+2 phase design that still give people problems. Perhaps the capacitors are not high enough quality???

Yes it has full LLC settings

 

[Irony]

Nice OC. I thought prime95 was gash for testing FX chips? I am probably going to settle on 4.3Ghz as it's getting towards 60c after a good while stressing, anything higher needs more volts (1.30v @ 4.3) so this is probs my limit for long term safety's sake. I have tinkered with my HT link speed and upped that 200Mhz, don't know if it will make any difference, will have to find a decent enough free benching software, I only have passmark and furmark installed atm.

Your volts are really good. Isn't that a bit undervolted? Helps keep it cooler. I think you could probly go another 100mhz maybe without worrying too much.


@durvelle: just a friendly tip, its usually best to edit one post multiple times than to double or triple posts. nice score in cinebench btw, I think thats better than mine at that speed

 

[Alcpone]

Your volts are really good. Isn't that a bit undervolted? Helps keep it cooler. I think you could probly go another 100mhz maybe without worrying too much.


@durvelle: just a friendly tip, its usually best to edit one post multiple times than to double or triple posts. nice score in cinebench btw, I think thats better than mine at that speed

It shows up in aida64 as about 1.33v under full load. I thought 60 was the most these chips could take? I don't want to kill it way before its time. It handles everything well barring FSX with loads of thick clouds, clearish weather is a doodle though. I've thought about clocking with the FSB abit but can't really be bothered tbh lol

 

[os2wiz]

It shows up in aida64 as about 1.33v under full load. I thought 60 was the most these chips could take? I don't want to kill it way before its time. It handles everything well barring FSX with loads of thick clouds, clearish weather is a doodle though. I've thought about clocking with the FSB abit but can't really be bothered tbh lol

Actually the recommended maximum sustained temperature is 62 Celsius.

 

[Irony]

Yeah I think thats about the temp limit I would want to keep it at. But you said it only gets that hot during lengthy stress tests? Does it ever get that hot in FSX? I don't really know much about how much FSX can load your CPU.

Idk, to each their own on temps. With mine if I test it with IBT on extreme or whatever the highest setting is, I accidently got up almost to 70c. But during gaming it never gets that hot of course, highest I saw was close to 50. Still WAY warmer than I want. Thats why I'm looking into water cooling.

I'm wondering if its maybe this As5. I really don't like it that much; with noctuas NT-H1 stuff that came with my cooler, I got 40c max on my 1090t @4.2, and with As5 it would get to like 53c I think. It seems like a huge difference, I don't think I was applying too much or anything.

 

[Alcpone]

Yeah I think thats about the temp limit I would want to keep it at. But you said it only gets that hot during lengthy stress tests? Does it ever get that hot in FSX? I don't really know much about how much FSX can load your CPU.

Idk, to each their own on temps. With mine if I test it with IBT on extreme or whatever the highest setting is, I accidently got up almost to 70c. But during gaming it never gets that hot of course, highest I saw was close to 50. Still WAY warmer than I want. Thats why I'm looking into water cooling.

I'm wondering if its maybe this As5. I really don't like it that much; with noctuas NT-H1 stuff that came with my cooler, I got 40c max on my 1090t @4.2, and with As5 it would get to like 53c I think. It seems like a huge difference, I don't think I was applying too much or anything.

In FSX only 3 cores are running at full tilt, the others which I assume will be the modules are running at varying speeds depending on terrain etc, so it never gets too toasty, I think 4.3 is a sweet spot that it will happily chug along at, a 800mhz bump in speed is nothing to be sniffed at and as I say it handles every game I throw at it. So i'm happy enough. I may possibly wack the stock HSF in the case to cool the chipset abit as I have seen that get fairly hot, I think 65c is abit toasty for long periods. I still can't work out how the cores are cooler than the cpu itself?

 

[Alcpone]

Yesterday I suffered some weird jam up's after I was playing intensive app's that stressed the system hard for a while, it happened when it was just idling along, it just froze and I had to kill power and start up. Not sure why it has just decided to start doing this. It is not jamming when being stress tested? I have had a fiddle on with the bios and have also updated it to the most recent bios (F6) I have also given it some more juice 1.35v. All seems stable now (touch wood)

Temps on the CPU are fine but I have noticed the chipset temps go up a little, hwmonitor has seen it spike to 67c but usually ticks along at 62/63c. Is this an ok temp? I have also directed a fan to blow over it which hopefully is helping.