***The Official Phenom II Overclocking Thread***

[Trunks9486]

Guys is having the latest BIOS a big part in a stable overclock?

Not necessarily

 

[mayebaza]

The only issue in the bios is you have to clear it prior to putting in the chip and it dose not recognise which AMD chip it has. If you disengaged Cool n’ Quite and usual, you should be able to over clock. No blue screens, no rebooting or boot issues, I still cannot believe it, and I am not alone, check out Asus forums.

 

[ecat]

Breathing life into old boards

Quick question: What do the old boards do with the TLB (?) patch when one of the new cpus is installed ?

 

[iMacMart]

Hi Guys

3.4 seems to be very stable, is there anything obvious I'm missing to then push for 3.6? Not too sure about the ACC to be honest?

 

[Trunks9486]

How did you test for stability? If its really stable just try higher ^_^

 

[iMacMart]

How did you test for stability? If its really stable just try higher ^_^

Ran Orthos for a few hours

Thats the thing it doesn't seem to want to go higher towards 3.6ghz even with 1.5v so I thought I could tweak some other settings to make it more stable...?

 

[ecat]

tweakinfreak,
What cooling are you using ?
Try turning down the CPU-NB multiplier (bios) or up the NB vid, up to 1.3 should be safe. You could also try taking the HT Ref clock down to 200 to see if this helps you overall oc.

ACC is a funny with the 720, in theory it should do nothing, in practice with the 0703/0803/0902? bios acc=auto or a non-zero setting for any of the cores you may end up unlocking the 4th core. If you have a good one this is blessing, if you have a bad one then you need to use the 'down core' setting in the bios to re-disable (lol) a core and hope it's the dodgy 4th one. A whole lot of twiddle and re-boots later and you may have a 3 core chip with acc enabled. It may help.

Setting ACC=disabled will return your 720 to its native 3 core state, after a couple of reboots at least, so no damage is done.

 

[iMacMart]

tweakinfreak,
What cooling are you using ?
Try turning down the CPU-NB multiplier (bios) or up the NB vid, up to 1.3 should be safe. You could also try taking the HT Ref clock down to 200 to see if this helps you overall oc.

ACC is a funny with the 720, in theory it should do nothing, in practice with the 0703/0803/0902? bios acc=auto or a non-zero setting for any of the cores you may end up unlocking the 4th core. If you have a good one this is blessing, if you have a bad one then you need to use the 'down core' setting in the bios to re-disable (lol) a core and hope it's the dodgy 4th one. A whole lot of twiddle and re-boots later and you may have a 3 core chip with acc enabled. It may help.

Setting ACC=disabled will return your 720 to its native 3 core state, after a couple of reboots at least, so no damage is done.

Hi mate

Thermalright Ultra-120 Extreme

 

[ecat]

Hi mate

Thermalright Ultra-120 Extreme

That's in your sig :doh:, I looked as well.

Usual tricks, one fan, two fans, high speed, low speed, looking for changes in temperature and stability. OCCT is quite useful for this as it creates a set of charts as it runs allowing you to clearly see the idle/load delta.

Prime may be useful too. Give it 5 mins and record the temperature then stop one core wait a minute and record the new temperature, restart prime and repeat for each core.

Please note the 720 temperature is a law unto itself and the absolute values it reports are simply wrong. In the above tests you're looking at changes in temperature which should give a better indication of what's going on.

Do try tweaking the NB-VID first, increasing it also adds extra heat but a little more voltage here has been known to help the oc.

 

[Tonyator]

My new 940 is at 3.6, just with a multiplier increase to 18.

Gonna try and get it further later.

 

[Bleek]

Just to report a few months on I've had no instability issues whatsoever, not a single freeze or crash. Very happy.

 

[Smoke-Alot]

i cant belive the speeds and temps you can get with theses chips,

i was thinking of getting the AMD Phenom II X3 Tri Core 720 with the unlocked multie,

after reading this thread, I AM getting the cpu above, j ust got to find mobo and mem to go with it,

 

[geowal19]

Seen as this thread is based on AMD overclocking it's a load of ****!

 

[Audigex]

Geowal, enough fanboy for one day thanks... go away. Seriously, nobody who knows anything about computers is that stupidly loyal to one brand. I'd understand if you owned an i7, but your piddly little E7 chip lags behind virtually every Phenom II based chip. Bad troll, go away.

Smoke-a lot - go for the 790GX chipset, it's a great partner to the 720BE

 

[Smoke-Alot]

Smoke-a lot - go for the 790GX chipset, it's a great partner to the 720BE

here are the bits i am looking to get at the end of the month

AMD Phenom II X3 720 2.8GHz

OCZ 4GB KIT (2 x 2GB) DDR3 1800Mhz PC3 14400 REAPER SERIES DUAL CHANNEL KIT (8-8-8-27)

ASUS M4A78T-E 790GX Socket AM3 onboard VGA DVI HDMI 8 channel audio ATX Motherboard

please feel free to let me know your thoughts, i am looking forward to getting the 720

 

[NSkii]

How am I doing guys ?.

I've had it at 3.2GHz at Stock Voltages & 16x Multiplyer since day one. I've gone to 3.4GHz today.





Set-up:-

720BE CPU
Asrock M3A790GXH/128M
OCZ Platinum AM3 4GB (2x2GB) DDR3 PC3-10666C7 1333MHz Dual Channel
Asus ATI Radeon HD 4890 1GB GDDR5 PCI-Express Graphics Card
Antec 300 & 5x Case Fans
Samsung SpinPoint F1 HD103UJ 1TB Hard Drive SATAII *32MB Cache*
Arctic Cooling (AC-FRZ-64P) Freezer64 CPU Cooler Pro Ver
OCZ Stealth XStream 600W PSU - SLI Ready ATX2.2 12cm Fan

 

[iMacMart]

My chip can sit @ 3.4ghz Orthos stable with everything set to auto

Think I'm happy to stay this way really...

 

[razer1978]

hi guys, i posted a message in the overclocking part of the forum but no replys can anyone on here help me link to other thread

can someone check out the screen shot and help me understand where i'm going wrong as there are some settings i'm unsure of and don't really want to kill my new rig