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Trying to get 4ghz on an Athlon II, again.

post #1 of 3
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I've upgraded cooling, well, I haven't touched anything on the motherboard, not even picked up a screw driver, I just moved my computer downstairs where it's COLD all of the time, as in 63-65F in the winter it got as low as 40 degrees once! but that's besides the point, now my cpu idles at about 70F ( 21C ) and it maxes out at about 104F ( 40C ) and I'm looking to push 4GHZ as a QUAD core, I know I can get 4 as a triple core.

Current Settings are:

242 Ref Clock ( FSB )
1600mhz on the ram
1.53 ( avg fluctuates by about .07 [ .03 in each direction ] ) volts ( set to 1.576 in the mobo )
HT is at about 2400mhz
North Bridge 2400mhz
CPU mult x15

Where should I start to get to 4ghz? I've tried the voltage, both CPU and northbridge, ht has almost no effect either way, I keep it anywhere from 2000 to 2400 and I know It won't crash.

My current settings are rock solid stable. I ran prime 95 for FIVE DAYS STRAIGHT. Not intentionally, but I left it running in the background while I was waiting for my slow internet to download a couple game off of steam, and I went to bed, and didn't use my computer that much over the next few days, I never even noticed it lol.

The max core temperature over that 5 day period was 46C so I think I can push a little bit more out of my cpu now that it isn't cooking at 100f room temperature upstairs!

BTW I'm running an unlocked Athlon x3 440 stock is 3ghz and I've got a CM hyper 212 plus for my cooling, w/ 2 fans and a 140mm fan in the front of the case, along w/ another 120mm in the front and back, well ventilated, case temp is always room temp.
Edited by Dr.Pepper - 6/17/11 at 5:38pm
Cooker
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386
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Cooker
(19 items)
 
386
(7 items)
 
 
CPUMotherboardGraphicsRAM
AMD FX-8120 ASRock 990FX Extreme3 AMD HD 6970 Corsair 
Hard DriveOptical DriveCoolingOS
Lots Sony Hyper 212+ Windows 7 
OSOSMonitorMonitor
Arch Linux FreeBSD Samsung SyncMaster 226bw Samsung SyncMaster 226bw 
MonitorKeyboardPowerCase
Samsung SyncMaster 226bw Das Keyboard w/ Blank Keys Corsair 700w Nzxt Whisper 
MouseMouse PadAudio
Logitech G500 10 year old generic Philips Stereo System from 1990's 
CPUHard DriveOptical DriveOS
AMD 386 Maxtor None Dos/Win31 
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15 Inch Unlabeled CRT Labeled 2001 3.5in High Density Floppy Drive 
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post #2 of 3
I have the same CPU. My highest stable is at 3.6GHz. You said that you reached 4 GHz before with that same CPU? I want to do the same too!
Mind sharing your settings with the 3 cores at 4GHz?
Edited by van13330gg - 6/17/11 at 7:33pm
Alpha dawg
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Alpha dawg
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post #3 of 3
The first thing to do is isolate everything from the CPU. Use the multipliers on the RAM, HT Link and Northbridge so they are close to stock as possible. HT Link and NB are 2000MHz at stock.

Set you CPU voltage to 1.5 and up your reference clock to 267. Your CPU should be at 4005MHz. Boot into your OS, run Prime95 for an hour. If all goes well lower the voltage on the CPU. Run Prime95 once again. If no errors you can try to lower the volts even more.

Now it's time to play with the Northbridge. Your multiplier for the NB should be at 7 (1869) or 8 (2136). If you raise it to x9 you shouldn't have to increase the voltage. If you are going for x10 raise the voltage on the CPU-NB VID to 1.275. Do not touch "NorthBridge Voltage". If Prime95 crashes then increase voltage on the CPU-NB.

Make sure you turn off Cool 'n Quiet while performing the stability tests.

Good luck.
Edited by harmor - 6/18/11 at 1:11pm
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My System
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AMD Phenom II X4 955 GA-890FXA-UD5 NVIDIA GeForce GTX 560 Ti G.Skill 
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