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The AMD Phenom II OC'ers Club

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Processor Phenom II 940BE @ 3.7ghz
Motherboard ASUS M3A78-T
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Hey guys,

I've had my Phenom II 940 for awhile know. Love the CPU. I'm using the ASUS M3A78-T mobo, 4 x 2gb Ram DDR2 800mhz.

I can't seem to get this puppy stable over 3.6ghz. I can boot all day long at 3.8ghz but as soon as i run OCCT i get a blue screen. I've tried everything i can thinkof , 2 x 2gb ect, but no luck.

My current settings @ 3.6ghz:
Vcore: 1.5v
Vdimm: 2.10v
NB: 1.45v
HT: 1.34v

Will upload screenies later with more settings.

Cheers
mRY
 

Tatty_Two

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Hey guys,

I've had my Phenom II 940 for awhile know. Love the CPU. I'm using the ASUS M3A78-T mobo, 4 x 2gb Ram DDR2 800mhz.

I can't seem to get this puppy stable over 3.6ghz. I can boot all day long at 3.8ghz but as soon as i run OCCT i get a blue screen. I've tried everything i can thinkof , 2 x 2gb ect, but no luck.

My current settings @ 3.6ghz:
Vcore: 1.5v
Vdimm: 2.10v
NB: 1.45v
HT: 1.34v

Will upload screenies later with more settings.

Cheers
mRY


I am not a Phenom II expert but have you tried raising the NB voltage slightly (running all that memory in all your slots puts quite an extra load on the NB) and/or raise your VDimm slightly.
 

Meltdown

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Hey guys,

I've had my Phenom II 940 for awhile know. Love the CPU. I'm using the ASUS M3A78-T mobo, 4 x 2gb Ram DDR2 800mhz.

I can't seem to get this puppy stable over 3.6ghz. I can boot all day long at 3.8ghz but as soon as i run OCCT i get a blue screen. I've tried everything i can thinkof , 2 x 2gb ect, but no luck.

My current settings @ 3.6ghz:
Vcore: 1.5v
Vdimm: 2.10v
NB: 1.45v
HT: 1.34v

Will upload screenies later with more settings.

Cheers
mRY

thought i read some where in this thred that people were having issues with occt try prime95 or try
orthes might help to try onther software to see if the issue isnt occt
 
Joined
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System Name Gaming Rig
Processor Phenom II 940BE @ 3.7ghz
Motherboard ASUS M3A78-T
Cooling Coolermaster V8
Memory 4 x 2gb DDR2 800mhz
Video Card(s) Sapphire 5870 (Asus bios)
Storage 2TB SEAGATE SATA2
Display(s) Samsung T240 24" Widescreen
Case Coolermaster Cosmos S
Audio Device(s) Creative X-Fi extreme music
Power Supply Corsair TX 850W
Software Windows 7 Ultimate 64bit
Thanx guys. I think my bios can only go up to 1.45v on the NB.
I don't know if my mobo is limiting me. Many ppl with the ASUS M3A78-T struggle to go higher than 3.6ghz.

I will try Prime95 tonight.
 

cdawall

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i have some D9JNL's that do 2000 CL7 cdawall if those are for sell i woud interrested if they were ddr3 sorry i am newb at mem numbers


not FS at the moment they are my bench sticks
 

Meltdown

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not FS at the moment they are my bench sticks

ok cool was drulling for sec :D hey if you get view extra 955be would like that
 

tjwo94

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Processor Phenom II 955 BE
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Benchmark Scores 3.800 Ghz @ 1.47v 200x19 3DMark06 @ 19532
Ok cdawall here is an update for you, lemme know what you think is next. at 1066 and those setting I can't push the bus past 214. I have had successful 3DMark06 runs at various multipliers with my memory staying in the range of 560 or 571. Science Mark 2.0 has run as well, however, I can not get a stable run using OCCT, I get a bluescreen or the program stops itself. Thoughts? Let me know if you need more info.
 
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for some reason amazon decided to ship my motherboard today instead of the estimated date
they said hey your in luck we "We are pleased to report that the following item will dispatch sooner than expected!"

nice touch they also gave me free first day shipping which was cool

i dont really hate amazon because they were excellent on my 360 (sold my old xbox 360 bought a new one, long story short new console and accessories and fable 2 only cost me £50 because i sold me old one and got a good amazon deal)

just if they do something stupid complain! you usually get complimentary shipping on your next order/current order or something like that

cant wait to test this sapphire board out has plenty of features
 

cdawall

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Ok cdawall here is an update for you, lemme know what you think is next. at 1066 and those setting I can't push the bus past 214. I have had successful 3DMark06 runs at various multipliers with my memory staying in the range of 560 or 571. Science Mark 2.0 has run as well, however, I can not get a stable run using OCCT, I get a bluescreen or the program stops itself. Thoughts? Let me know if you need more info.

might be getting close to the limit on them you will probably have to start playing with drive strengths and subtimings to get higher
 

tjwo94

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Video Card(s) (2) XFX GeForce 9800 GTX+ 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported
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Power Supply Corsair Modular 1000W ATX12V 2.2 / EPS12V 2.91 SLI-CrossFire Ready 80 PLUS Certified
Software Windows Vista 32bit and Windows 7 Beta 64bit
Benchmark Scores 3.800 Ghz @ 1.47v 200x19 3DMark06 @ 19532
Okay, I honestly have no clue how to do that. :)
 

cdawall

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tjwo94

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Benchmark Scores 3.800 Ghz @ 1.47v 200x19 3DMark06 @ 19532
So am I going to be hosed on getting a better clock?
 

crazyeyesreaper

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alright folks i need some help getting my phenom II 940 up to snuff

seems i can get anything stable at stock clocks games run fine programs are fine and all is well in orthos stable also tested with memtest etc everything checks out

im not new to this but im hoping to find someone with my board whom can offer a little insight due to the face if i overclock i get DCOM service launcher errors and IRQ request not equal errors can anyone help?
 
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Question for you guys.

I can't overclock the bus at all on this board. Even a smidge over 200Mhz and it goes unstable, by 250Mhz it's Blue Screening on startup with an 0x000007E error or 7F error.

As long as the bus is at 200Mhz I can just overclock with the multiplier but that's no fun heh.
 

eidairaman1

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Hmm i dont think ive heard many OCing the Foxconn boards, More like a Feature rich board, ala MSI. If you want to overclock TBH with you, try dropping the HTT bus, Up the voltage of the NB and SB if possible and also loosen the timings. Otherwise good luck and worst comes to worst, DFI, Asus, Gigabyte have perfectly capable OC boards.
 
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Done all that many times. Had the same problem with my old Biostar board, but at least that would boot at 250Mhz instead of blue screening.

What I decided to do, instead of increasing the HT ref, I upped the northbridge and HT bus speeds one notch, set my RAM to 1066Mhz and upped the CPU Multi. So I'm running at 3.2Ghz (For the moment), 2.25Ghz NB and HT speed.
 
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Enmity

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a few more tweaks at 3.8
 

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Hmm i dont think ive heard many OCing the Foxconn boards, More like a Feature rich board, ala MSI. If you want to overclock TBH with you, try dropping the HTT bus, Up the voltage of the NB and SB if possible and also loosen the timings. Otherwise good luck and worst comes to worst, DFI, Asus, Gigabyte have perfectly capable OC boards.

I run with a Foxconn A79A-S all day
Highest Clock i was able to reach was 3.79 but the new bios i upgraded to really messed me up

Ht link doesnt let me change it ethier maybe next bios fixs it
 
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a few more tweaks at 3.8

Hmm is Super Pi a more memory bench test then the cpu?

because i was able to hit 18.8sec @ 3.79
 

cdawall

where the hell are my stars
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So am I going to be hosed on getting a better clock?

you might be able to get 1200 but 11xx @cl5 is pretty damn good for a 2x2GB kit and about were most will top out
 

Enmity

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yup superpi is definately more of a memory benchmark, but thats why i did a 3dmark06 also. I've found that at 3.8 and with a vcore of as high as 1.5 it's still not occt stable. it runs for a few mins then BSOD. any tips on what else can help regain stability?
 
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Up the NB

and i am going to go with the
Crosair 4gb DDR2 1066
 

Enmity

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up the nb volts u mean?
 
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