Phenom 2 940

[colflo101]

hello can anyone give some advice on the best way to overclock the phenom 2 940 i recently overclocked it with these settings
CPU Clock 3453.1 MHz
CPU Multiplier 17x
CPU FSB 203.1 MHz (original: 200 MHz)
HyperTransport Clock 1828.1 MHz
North Bridge Clock 1828.1 MHz
CPU VID 1.4500 V
North Bridge VID 1.1750 V
Memory Bus 406.3 MHz
DRAM:FSB Ratio 12:6

do these settings look ok thanx for any advice giving on how to overclock

 

[drdeathx]

hello can anyone give some advice on the best way to overclock the phenom 2 940 i recently overclocked it with these settings
CPU Clock 3453.1 MHz
CPU Multiplier 17x
CPU FSB 203.1 MHz (original: 200 MHz)
HyperTransport Clock 1828.1 MHz
North Bridge Clock 1828.1 MHz
CPU VID 1.4500 V
North Bridge VID 1.1750 V
Memory Bus 406.3 MHz
DRAM:FSB Ratio 12:6

do these settings look ok thanx for any advice giving on how to overclock

As to what the write ups are that is not bad. What kind of memory and what mobo are you using? Need more info. Cooling and temps would help. I have read some are getting to high 3.XX's. Also those volts at 1.45 seem high.

 

[colflo101]

As to what the write ups are that is not bad. What kind of memory and what mobo are you using? Need more info. Cooling and temps would help. I have read some are getting to high 3.XX's. Also those volts at 1.45 seem high.

ok these are my mobo details and memory details

Motherboard Name Asus M3N78 Pro

Module Name OCZ Gold XTC OCZ2G8002G 4gb

Memory Speed DDR2-800 (400 MHz)

Memory Timings
@ 400 MHz 6-6-6-18 (CL-RCD-RP-RAS) / 24-45-3-6-3-3 (RC-RFC-RRD-WR-WTR-RTP)
@ 333 MHz 5-5-5-15 (CL-RCD-RP-RAS) / 20-38-3-5-3-3 (RC-RFC-RRD-WR-WTR-RTP)
@ 266 MHz 4-4-4-12 (CL-RCD-RP-RAS) / 16-30-2-4-2-2 (RC-RFC-RRD-WR-WTR-RTP)


i have the coolmaster v8 and my temps are 28 c idle and 43 c on full load i thought myself the voltage was high but when i ran prime 95 for ten mins it blue screened so i thought the voltage needs to go up a bit i ran prime on small ffts
i dont know if iam doing anything wrong like needing to change memory or any other settings thanx for your help and time bud

 

[drdeathx]

You really shouldn't need much of a voltage boost. It is something in your bios settings. This is a tedious thing to overclock. Try lower multipliers and higher frequencies or high multipliers and lower frequencies. Read up more on EPP settings and other basic bios tweaks. A good thing is to take a pic of bios(manually with cam or cell phone) and post it. Then some can make recommendations.

 

[colflo101]

am i useing the right stress test on prime95 should i be using the blend test instead of small fft and would it not slow the cpu if i lower the multiplier settings and raise the fsb i cant understand why i needed so much voltage i only raised the multiplier from stock 15 to 17 overclock and fsb from stock 200 to 203 overclock wich i dont think that is a great deal realy to have to bump the voltage from 1.32 to 1.45 thanx again for your advice

 

[PrangeWay]

Run both the small and blend. The blend test will uncover ht/nb issues that the small fft test will not.

I'd not bother with the fsb, they tend to make P2 unstable fast.

My 940 is currently at x18 @ 1.425 Volts. x18.5 toke 1.525 volts, so I didn't think 3.7 was worth a full .1 v increase that ends above spec voltage (1.5)

HT/NB are at 2.2 Ghz (200 x11) running auto settings for voltage.

 

[colflo101]

am starting to give up with this overclocking thing can i not just raise the multiplier and leave all other setting at stock and just increase voltage even when i raise the multiplier to x16 i still have to increase the voltage from 1.32 to at least 1.35 must be something wrong some where dont realy understand the HT/NB are at 2.2 Ghz (200 x11) running auto settings for voltage part you put in am new to all this so not very clued up with it lol thanx again for help mate

 

[colflo101]

Run both the small and blend. The blend test will uncover ht/nb issues that the small fft test will not.

I'd not bother with the fsb, they tend to make P2 unstable fast.

My 940 is currently at x18 @ 1.425 Volts. x18.5 toke 1.525 volts, so I didn't think 3.7 was worth a full .1 v increase that ends above spec voltage (1.5)

HT/NB are at 2.2 Ghz (200 x11) running auto settings for voltage.

do you think it could be something to do with the power supply i have its 850 watt buts it only cost about £40 so its only a cheap one

 

[unclefester]

You may need to go in and raise the volts on your memory a little. Not exactly sure which OCZ memory you have but some modules need from 1.9v to 2.1v to run properly. Check the model you have. If you don't want to void the lifetime warranty "do not" go over specified voltage.

 

[drdeathx]

higher voltages lead to higher temps and shorter cpu life. Don't see many guys running at 1.45. That is high.

 

[drdeathx]

All overclocking reviews that use anything over 1.5 warn the user. All Phenom users are in the 1.3-1.4 range.

 

[drdeathx]

All overclocking reviews that use anything over 1.5 warn the user. All Phenom users are in the 1.3-1.4 range. 1.5 is definitely NOT RECOMMENDED. You may be "able" to get by with 1.45 with a quality heatsync as long as temps are low. Run Prime 95 for 8 hours and let us know what temps are. 1.45 is not needed with these CPU's. A Small jump to 1.3-1.4 with a slight Northbridge jump is what "all" overclockers are doing with these Phenoms. To run these voltages 24/7 will reduce your lifespan.

 

[colflo101]

All overclocking reviews that use anything over 1.5 warn the user. All Phenom users are in the 1.3-1.4 range. 1.5 is definitely NOT RECOMMENDED. You may be "able" to get by with 1.45 with a quality heatsync as long as temps are low. Run Prime 95 for 8 hours and let us know what temps are. 1.45 is not needed with these CPU's. A Small jump to 1.3-1.4 with a slight Northbridge jump is what "all" overclockers are doing with these Phenoms. To run these voltages 24/7 will reduce your lifespan.

these are my settings now
CPU VID 1.3500 V
North Bridge VID 1.1750 V
CPU Clock 3200.0 MHz
CPU Multiplier 16x
CPU FSB 200.0 MHz (original: 200 MHz)
HyperTransport Clock 1800.0 MHz
North Bridge Clock 1800.0 MHz

so do you think a good idea would be to raise the north bridge volt a bit to stable cpu what do tou think about raising the memory volt as well i dont want to go any higher than 1.4 for cpu so if i raise the multiplier and i end up raising the cpu volt to much am just going to leave it and lower the multiplier where i can have a safe cpu volt thanx for advice mate again

 

[wildgene789]

my Phenom II 940 is at 3.72 right now with mult of 18.5 and volt 1.5

 

[colflo101]

my Phenom II 940 is at 3.72 right now with mult of 18.5 and volt 1.5

did you just increse the multiplier and voltage to get that overclock and leave all other settings at stock

 

[colflo101]

my Phenom II 940 is at 3.72 right now with mult of 18.5 and volt 1.5

did you just increse the multiplier and voltage to get that overclock and leave all other settings at stock

 

[bulletslinger]

hey all i also have a phenom 2 and i have the voltage set to 1.46 but when i run cpuz it says the vcore is 1.42 and it also say the vcore in the bios under pc health the vcore says 1.42 i thought the vcore and cpu votage were the same?

 

[colflo101]

hey all i also have a phenom 2 and i have the voltage set to 1.46 but when i run cpuz it says the vcore is 1.42 and it also say the vcore in the bios under pc health the vcore says 1.42 i thought the vcore and cpu votage were the same?

i thought they were as well what do you have it overclocked to and what did you increase to get the overclock was it just the multiplier and cpu voltage

 

[bulletslinger]

well i have tried it a couple dif ways

1) just raised the multiplier and vultage

MHz 3600
multiplier 18
FSB 200
HT 1800
Core Voltage 1.42
CPU voltage 1.46
Ram MHz 400 (pc6400)

2) Raised the FSB and multiplier

MHz 3680
multiplier 16
FSB 230
HT 2070
Core Voltage 1.42
CPU voltage 1.46
Ram MHz 460 (pc6400)

The second option got a higher mark 06 score but i think that option one is easier on my system (need it to last a couple years) so i am using option one.

 

[colflo101]

well i have tried it a couple dif ways

1) just raised the multiplier and vultage

MHz 3600
multiplier 18
FSB 200
HT 1800
Core Voltage 1.42
CPU voltage 1.46
Ram MHz 400 (pc6400)

2) Raised the FSB and multiplier

MHz 3680
multiplier 16
FSB 230
HT 2070
Core Voltage 1.42
CPU voltage 1.46
Ram MHz 460 (pc6400)

The second option got a higher mark 06 score but i think that option one is easier on my system (need it to last a couple years) so i am using option one.

how come you have core voltage and cpu voltage what temps do you get on full load i was going to leave mine at 18 multiplier but
some guys reckon i was having my cpu voltage set to high wich was 1.45 volts but i was gettting 28c on idle and 44c on full load wich i thought was ok but i dont want to shorten the life out of it like you said thanks for your reply

 

[bulletslinger]

how come you have core voltage and cpu voltage

well in the bios i dont i only have cpu voltage but when i set it then it ends up dif in cpuz and under bios system monitoring.
which was my original ? because i thought they were the same as well but it turns out to be like this, i set the CPU voltage to 1.46 then the Core Voltage turns out to be 1.42

 

[colflo101]

how come you have core voltage and cpu voltage

well in the bios i dont i only have cpu voltage but when i set it then it ends up dif in cpuz and under bios system monitoring.
which was my original ? because i thought they were the same as well but it turns out to be like this, i set the CPU voltage to 1.46 then the Core Voltage turns out to be 1.42

thats strange i use everest and use the overclock feature it tells you same voltage as the bios mine was diffrent hen i used cpuz
iit gives you diffrent readings wich is wrong i think what temps do you get when on full load

 

[bulletslinger]

40-42 c

 

[colflo101]

40-42 c

thats not bad at all do you think it does the cpu damage having the voltage a lot higher than it should be whats the stock voltage of the phenom 2 some people say its 1.32v

 

[bulletslinger]

i dont think so when i set mine to default it 1.38 so i dont think so