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A rookie with a 9950 BE

post #1 of 9
Thread Starter 
Hello everyone. As this is my first post in this forum, i apologize in advance if I posted this in the wrong section, or something like that.
After reading alot on the internet, and this forum, and seeing that there is alot of friendly, and very knowledgeable people here, I thought that I should give it a go .

My rig is quite old, and I just want to squeeze every little drop of effect out of it since I cant buy a new computer right now. OC'ing is suprisingly fun, but a bit overwhelming.

My rig is:
Asus M4a78-e
AMD 9950 BE 2.6GHz
4 x 2048 bytes of Corsair CM2X2048-6400C5
Nvidia Geforce gtx 560 Ti
Cant remember the CPU fan right now, but its capable (I've been told)
Fractal Design R4 with 5x 120 mm
750 w PSU

So I'm trying to overclock this "past its prime" machine, and I have never done it before. Been toying with the values in bios for a while, with different results. I am now at 220MHzx13 with at Corevoltage of 1.4. If I increse the clock to 225 prime95 gives me errors. Tried moving the volt to 1.45 and 1.5, but didnt help.

Can anyone spare the time to educate and help me with this?
Thanks!
post #2 of 9
Welcome! Maybe also fill out your rig specs so you don't have to post the same thing in other threads if you plan to post here more.

If your chip is indeed a BE - Black Edition - that usually means you can overclock by changing the multipler, instead of mucking around with bus speeds. Is there a section in your BIOS that lets you modify the multiplier? Or is it stuck at 13?

Also remember that when you increase the bus, you increase the speed of everything connected to it as well, such as your ram. What speed is your ram set at, as that may be going over its design speed if you push the bus too high. You may need to drop the ram speed down one.
 
13" beast
(6 items)
 
HTPC
(8 items)
 
CPUMotherboardGraphicsRAM
Lapped X4 940BE @ 3.5Ghz / NB @ 2.4GHz Biostar TA790GX 128M 1GB HD6950 @ 965/1360 (1.26V) Kingston Hyper-X 2GB x 4, 1066 MHz 5-5-5-15-22 ... 
Hard DriveOptical DriveCoolingOS
Crucial M4 64GB SSD, WD 640GB x 2 none Scythe Katana 3 Win7 64bit 
MonitorKeyboardPowerCase
Dell 24", Samsung 17" x 2 Logitech Illuminated Antec Earthwatts 750W Antec 300 
CPUGraphicsRAMHard Drive
Intel Core i5 2410M @ 2.3 Ghz stock Intel HD Graphics 3000 4GB 500 GB 
OSMonitor
Windows 7 WXGA (1366x768) 
CPUMotherboardGraphicsRAM
Athlon II X2 245 GA-MA785GM-UD2H Onboard HD4200 Kingston 2GB 
Hard DriveOSKeyboardCase
WD 2TB x 2 Windows 7 Ultimate Benq Wireless Antec NSK1480B 
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13" beast
(6 items)
 
HTPC
(8 items)
 
CPUMotherboardGraphicsRAM
Lapped X4 940BE @ 3.5Ghz / NB @ 2.4GHz Biostar TA790GX 128M 1GB HD6950 @ 965/1360 (1.26V) Kingston Hyper-X 2GB x 4, 1066 MHz 5-5-5-15-22 ... 
Hard DriveOptical DriveCoolingOS
Crucial M4 64GB SSD, WD 640GB x 2 none Scythe Katana 3 Win7 64bit 
MonitorKeyboardPowerCase
Dell 24", Samsung 17" x 2 Logitech Illuminated Antec Earthwatts 750W Antec 300 
CPUGraphicsRAMHard Drive
Intel Core i5 2410M @ 2.3 Ghz stock Intel HD Graphics 3000 4GB 500 GB 
OSMonitor
Windows 7 WXGA (1366x768) 
CPUMotherboardGraphicsRAM
Athlon II X2 245 GA-MA785GM-UD2H Onboard HD4200 Kingston 2GB 
Hard DriveOSKeyboardCase
WD 2TB x 2 Windows 7 Ultimate Benq Wireless Antec NSK1480B 
  hide details  
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post #3 of 9
Thread Starter 
Hi again, and thanks for a quick reply. Where do I put my rig specs?

The multiplier is unlocked yes, and I have tried to OC by multiplier, and with fsb-fiddling. Im now trying the multiplier and Voltage "approach" smile.gif

Im currently at 200x14,5, 1.45 V, and thats stable enough to run prime95 for 10 minutes. When i bump the multiplier to x15 i get a error on "worker#4", im guessing this is core number 4. The other cores are running stable. Im now at 3.GHz, but as a said, with one core with an error. My temps are 53 celsius at max load.
post #4 of 9
When the workers start dropping out, you probably need to increase voltage, although 1.45V seems quite high (not familiar with the 9950). Just add voltage, then increase the multi - repeat until it no longer goes any more. Keep temps under 60C at all times. Once you have found the maximum multi ( = stable CPU speed), you may be able to fine tune it using different combinations of FSB to bring the speed of other components up a bit while keeping the CPU at the max speed you found earlier. You will have to play around with other voltages (RAM, NB etc).

Rig specs are down the bottom? Or maybe click on your avatar and add/edit your information.
 
13" beast
(6 items)
 
HTPC
(8 items)
 
CPUMotherboardGraphicsRAM
Lapped X4 940BE @ 3.5Ghz / NB @ 2.4GHz Biostar TA790GX 128M 1GB HD6950 @ 965/1360 (1.26V) Kingston Hyper-X 2GB x 4, 1066 MHz 5-5-5-15-22 ... 
Hard DriveOptical DriveCoolingOS
Crucial M4 64GB SSD, WD 640GB x 2 none Scythe Katana 3 Win7 64bit 
MonitorKeyboardPowerCase
Dell 24", Samsung 17" x 2 Logitech Illuminated Antec Earthwatts 750W Antec 300 
CPUGraphicsRAMHard Drive
Intel Core i5 2410M @ 2.3 Ghz stock Intel HD Graphics 3000 4GB 500 GB 
OSMonitor
Windows 7 WXGA (1366x768) 
CPUMotherboardGraphicsRAM
Athlon II X2 245 GA-MA785GM-UD2H Onboard HD4200 Kingston 2GB 
Hard DriveOSKeyboardCase
WD 2TB x 2 Windows 7 Ultimate Benq Wireless Antec NSK1480B 
  hide details  
Reply
 
13" beast
(6 items)
 
HTPC
(8 items)
 
CPUMotherboardGraphicsRAM
Lapped X4 940BE @ 3.5Ghz / NB @ 2.4GHz Biostar TA790GX 128M 1GB HD6950 @ 965/1360 (1.26V) Kingston Hyper-X 2GB x 4, 1066 MHz 5-5-5-15-22 ... 
Hard DriveOptical DriveCoolingOS
Crucial M4 64GB SSD, WD 640GB x 2 none Scythe Katana 3 Win7 64bit 
MonitorKeyboardPowerCase
Dell 24", Samsung 17" x 2 Logitech Illuminated Antec Earthwatts 750W Antec 300 
CPUGraphicsRAMHard Drive
Intel Core i5 2410M @ 2.3 Ghz stock Intel HD Graphics 3000 4GB 500 GB 
OSMonitor
Windows 7 WXGA (1366x768) 
CPUMotherboardGraphicsRAM
Athlon II X2 245 GA-MA785GM-UD2H Onboard HD4200 Kingston 2GB 
Hard DriveOSKeyboardCase
WD 2TB x 2 Windows 7 Ultimate Benq Wireless Antec NSK1480B 
  hide details  
Reply
post #5 of 9
Thread Starter 
Tried to fix the spec, in a bit of a hurry though.

I have now tried the intel burn test, and that was a success on the same specs as the prime got an error. Strange?
post #6 of 9
Thread Starter 
Anyone with an idea why prime give me an error, and Intel burn test dont? I have used the computer now with overclock that prime gave an error on, and it seems ok.
post #7 of 9
still not stable. Lower the multiplier if you're not keen on upping the voltage.
 
Work Rig
(11 items)
 
 
CPUMotherboardGraphicsRAM
i7-2700k @ 4.6GHz  Asus P8Z68-V/Gen3 Galaxy Ref 670 + EK 670 Copper G.Skill Ripjaws 16GB 
Hard DriveCoolingCoolingOS
Crucial M4 128GB + 1TB F3 + 2x 640GB Black RAID0 H220 + 2x GT AP-15 Alphacool ST30 + PWM Helix push/pull Windows 7 Ultimate x64 
KeyboardPowerCaseMouse
Filco Tactile Click Cooler Master V1000 600T SE Roccat Kone XTD 
Mouse Pad
Steel Series 9HD 
CPUMotherboardGraphicsRAM
i7 950 Rampage III Gene 2x EVGA GTX 680 SLI 24gb HyperX 
Hard DriveCoolingOSMonitor
960GB Crucial M500 Intel Stock Windows 7 64bit Enterprise HP ZR2440w + Z24i 
KeyboardPowerCase
Ducky Brown Antec TP-750 Antec Sonata 
  hide details  
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Work Rig
(11 items)
 
 
CPUMotherboardGraphicsRAM
i7-2700k @ 4.6GHz  Asus P8Z68-V/Gen3 Galaxy Ref 670 + EK 670 Copper G.Skill Ripjaws 16GB 
Hard DriveCoolingCoolingOS
Crucial M4 128GB + 1TB F3 + 2x 640GB Black RAID0 H220 + 2x GT AP-15 Alphacool ST30 + PWM Helix push/pull Windows 7 Ultimate x64 
KeyboardPowerCaseMouse
Filco Tactile Click Cooler Master V1000 600T SE Roccat Kone XTD 
Mouse Pad
Steel Series 9HD 
CPUMotherboardGraphicsRAM
i7 950 Rampage III Gene 2x EVGA GTX 680 SLI 24gb HyperX 
Hard DriveCoolingOSMonitor
960GB Crucial M500 Intel Stock Windows 7 64bit Enterprise HP ZR2440w + Z24i 
KeyboardPowerCase
Ducky Brown Antec TP-750 Antec Sonata 
  hide details  
Reply
post #8 of 9
Quote:
Originally Posted by OverDoc View Post

Anyone with an idea why prime give me an error, and Intel burn test dont? I have used the computer now with overclock that prime gave an error on, and it seems ok.

Prime95 puts more stress on the L3 cacje/ North bridge and memory.

intel burn test puts more loads on cores then memory.
    
CPUMotherboardGraphicsRAM
amd Phenom II x6 1090T gigabye UD7 990FX 5870 G.skill flare 2 x 4gbs 2000mhz  
Hard DriveCoolingOSMonitor
westerdigital cooler master eisberg 240L Vista 64 bit spceptre 1920 x 1200 
KeyboardPowerCaseMouse
muli-media ftw lol 1200 watt silverstone none another cheap one $20 
Mouse PadOther
none ATi 650 pro theater  
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
amd Phenom II x6 1090T gigabye UD7 990FX 5870 G.skill flare 2 x 4gbs 2000mhz  
Hard DriveCoolingOSMonitor
westerdigital cooler master eisberg 240L Vista 64 bit spceptre 1920 x 1200 
KeyboardPowerCaseMouse
muli-media ftw lol 1200 watt silverstone none another cheap one $20 
Mouse PadOther
none ATi 650 pro theater  
  hide details  
Reply
post #9 of 9
Thread Starter 
So its probably the memory that causes the error? Tried to reduce memory timings according to a guide I used, but couldnt fint out how I did this, so the memory is "auto".
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