Phenom II X4 945 (95W) Overclocking

Hey,
I've been playing around with my Ph II 945 and it seems to bee a quite good overclocker. I've come up to here, just a notch above stock voltage:


I'm using MSI K9A2 Platinum board (790FX/SB600/DDR2), got the fsb up to 250 and the CPU multi down a bit to 14. Can't do more because I'm still using the stock cooler. I'm getting a better one and I'm wondering how far up I'll be able to go. I've read someone getting it to 3,7. Did anybody go higher than that using such a CPU?

more volts. for that you will need better cooloing. Mugen 2 is a great fan if you got the room for it in the case

With the K9A2 you only can raise the volts to 1.5V...so 1.4V is perfect for the OC.

I don't know if you've read this excellent article by Mr. Henningsen, but in case you haven't it has some great info.
http://www.tomshardware.com/review [...] ,2396.html

I OC my 945 to 3.7 GHz, cpu cooler is Noctua NH-U12P with 2 fans. I think Volt is 1.421 but not sure about it, I am completely noob when it comes to OC, Volt etc.. But I can tell you one thing, running @ 3.7 full load my CPU temp is max 45c.
Before with the custom fan without oc the temp @ full load was something like 64-65c.
I know this cpu can handle more, I just dont know what to do with those volts in BIOS.

System info

CPU: AMD Phenom II x4 945 3.0 GHz
Motherboard: MSI 770-C45
RAM: G.Skill 4GB DDR3 1333
HDDL not exacly sure I think 7200RPM 6400GB.
Supply 700 Watt
Graphics card: Radeon XFX HD 4850 1GB DDR3-5 not sure


After OC CPU to 3.7 GHz I run some test AMD Overdrive 1 Hour All test passed full load temp 44c
and played Counter-Strike Source all night long xD without any errors.

I hope someone is able to help us, please dont let this topic die!

Thank you, and yea I am sry for my poor English

regards,

AJ

As long as your HT speed is faster than you memory speed you are fine --- so you may easily drop the HT multiplier to x9 or x8.

The NB/IMC is a whole different animal. For each 10% increase in NB/IMC speed, memory bandwidth is increased 3-4% and latency is reduced 3-4%. This more than makes up the difference in speed between dual- and single-channel RAMs.

I don't want to burst yer bubbles - you guys are doing great - but your NB/IMC speeds are at best, average. 2700-2800MHz is good --- the guys at XS have pushed beyond 3000MHz so that gives you an idea of the work ahead.

The issue on the MSI 790FX is you may not be able to tweak the NB voltage (at least on mine). In my BIOS version it can't be adjusted and with AOD it just won't stick. Not sure about the MSI 770 NB voltage settings. At a minimum see what you can do with the x11 multiplier.

Here are the results found by Anand in upping the NB speed in Far Cry (not really a good game for AMD). With a Phenom 720BE at 3.8GHz / NB 2.8GHz he was within shouting distance from a Q9550 OC'ed to 4.25GHz.



The 95w Phenom 945 is a sweet chip - enjoy and keep up the good work.