Phenom 9850 BE Overclocked to 3.0GHz

donkeywash

Distinguished
Jul 12, 2008
8
0
18,510
It's too bad that so many people have had problems OC'ing the Phenom 9850 to 3GHz - and using such expensive motherboards.

I have an Asus M2A-VM and I stuck a Phenom 9850 in it. Although the Phenom's capabilities will be limited (due to the HT and memory clocks) it works like a charm.

I raised the vcore to 1.35 and it up to 3GHz with no issues. Prime 95 ran for 2 hours and the max temps I recorded were 55C. PC Mark 05 ran the full suite of benchmarks and no issues either.

Hooray for the budget board and the AMD 690G!
 
thanks_for_the_info.jpg
 

totalwindup

Distinguished
Aug 16, 2008
7
0
18,510
Yah i have been cutting down the cpus i want to buy and want to get this one its pretty high on my list. So i want to know if this is the best way to stable OC it to 3.0ghz i am thinking of getting a BIOSTAR TFORCE TA790GX for the mobo.

And just a side note i want to know if i need a use ddr2 1066 on it because its a lot cheaper for me to get 800 and not 1066
 

coolheat

Distinguished
Aug 18, 2008
6
0
18,510
definetely get the 1066 even if its a twin 1gig pack and i recommend dominator by corsair simply for the fact i run it on vista64 ultimate and is quite satisfactory on a 9600be stock
 

twojaythomo

Distinguished
Aug 20, 2008
1
0
18,510
I have only just heard of this problem I have a AMD 9750 2.4GHZ with a Gigabyte MA790X and I overclocked mine too 2.91 GHZ with temp of 38 degress C max
 

particleman

Distinguished
Jul 20, 2008
134
0
18,680
Best I have done is 2.9 Ghz, with 1.350v.

Does the 1066 ram help get you higher? If so, I will invest in better ram, or OC my current DDR2-800.

-PM
 

andro_med

Distinguished
Jan 6, 2009
1
0
18,510
Hey

http://valid.canardpc.com/show_oc.php?id=475947

it didn't crash yet , temp @ 42 idle / full load it may top 67 degree with prime, around 53~57 while gaming, crysis, second life, tomb raider legend, you name it , cod4, unreal 3, need4speed pro.

voltage : stock , i think i saw 1.3v (BIOS)
cooling : Zalman CNPS 9700 NT CPU Heatsink
ram : 4x1Gb corsair : PC2-1066 (stock setting, had to force that on BIOS coz it detect it as PC2-800)
mobo : msi k9a2 platinum

peace
 

jcknouse

Distinguished
Oct 23, 2008
447
0
18,780
I have my 9850BE OCed to 2.85GHz, and it never gets over 60C on full load on all 4 CPUs running 10 sessions of Shadowbane, 1 session of Ventrilo, and 1 AGC instance.

I really can't risk pushing it to 3+GHz. I don't wanna have to buy anything til fall...maybe I'll upgrade CPUs then lol
 

drdeathx

Distinguished
Feb 18, 2009
55
0
18,630



Run 2.9GHz low 50 dgrees at full load. Trying to get my cpu to 3.0GHz. See my thread:

http://www.tomshardware.com/forum/251128-29-overclocking-9850
 

Bugattifan1001

Distinguished
Mar 5, 2009
1
0
18,510
I have mine stable at 3.2 Ghz using 30$ Sunbeam Core Contact Freezer cooler. Running Prime 95 for 6 hours now at 1.325 volts. The best way to overclock if you have the 700 series boards is through AMD Overdrive, it allows you to change everything and will even moniter it for you. Using OCZ reaper 1066 running perfectly in this system. Hope this helps anyone!
 

drdeathx

Distinguished
Feb 18, 2009
55
0
18,630
To me GHz means nothing TO ME. You can sacrifice a lot to get higher core speeds but sometimes CPU performance is sacrificed. 3DMARK is a great tool. It gives a CPU score and that what overclocking is about. PERFORMANCE. I can hit 3.3GHz but I need a lower NB, HT amd memory fequency. My performance is the same at 3.3GHz as 3.2GHz so I will stay with 3.2. My new 3DMARK06 score raised to 16,100.

Ok here is 3 screen shots: Pay attention to CPU score and FSB and memory changes. The 1st screenshot is with 667 as memory in bios, second is with 800. My multi is 15.5 with 206 as fsb. Second is 15 as multi with 217 if I remember. Notice the hypertransport and NB higher with 3rd screenshot giving me a huge jump in CPU score and total score. The OC on GHz is only .3GHz higher but the performance gain remained though mainly Hypert, NB and ram set to 800.

Click on screen shots for larger view.

exper1.jpg

exper2.jpg

exper2.jpg


THERE WAS A 50 POINT JUMP IN 800MHz from 667MHz which is only about 1% but with new Ram of 1066 I bet the performance gain will be about 2-3%. Now remember you may be able to get 2-5% better overclocking so your total performance gain could be up to 10%.
 

drdeathx

Distinguished
Feb 18, 2009
55
0
18,630



Its the easiest not the best.