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AMD Phenom II X3 700 Series OC Club - Page 638

post #6371 of 6432
The best way to narrow it down is to write down your current settings. Reset to stock, and lower your Multi/NB/HT to 1800, then start raising the FSB. That will tell you your max FSB. Its doubtful you have anything defective, since you are able to get an average overclock out of it. It sounds more like your motherboard just can't produce enough clean power for the demand. But with those chips, you're really only looking at ~200 Mhz even with an uber nice AM3 board under water. Which isn't enough of a gain to cover the expense and trouble.
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post #6372 of 6432
Cheers for the advice bro. Yeh, maybe I rushed it - I might have another go over summer break with a spare HDD. Even though another 200 MHz will probably not be noticeable in anything but benchies, I kind of want to crack it and really see what this setup is good for.
 
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post #6373 of 6432
Quote:
Originally Posted by mongen View Post

Even though another 200 MHz will probably not be noticeable in anything but benchies, I kind of want to crack it and really see what this setup is good for.

You are in the right place, my friend. thumb.gif Just be careful of your motherboard. You might want to put a fan over the VRM's and beef up the heatsinks.
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post #6374 of 6432
Well I moved the fans around and put one over the VRMs - dropped temps significantly. TMPIN0 used to read over 60C, now it maxes out at 48C. Core temps are around 43C.

Also played around with a spare HDD on the weekend and fiddled around with the ram speed and timings to get a semi-stable clock. This can now play games for hours, and I will run a prime95 run overnight tonight. I only needed to bump up the NB volts one notch from 17x multi.

http://valid.canardpc.com/show_oc.php?id=2318438

FSB 208 locks up with 0x50 in BF3, but 207 seems solid. I might up the voltage or loosen the timings further to see if I can exceed 208FSB.

Right now happy with 3.52Ghz / 2.48Ghz NB with barely any change in voltage or heat.

I realize most of the people in this thread have moved on to bigger and better things, but this still might be of interest to some still rocking with the 720BE.
 
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post #6375 of 6432
i used to run my 720 unlocked @207 bus to get the highest cpu-nb speed i could,2691mhz. it also gave me 2070 ht link. ram wise, i had geihl gold dragon 1066. yes i fell for their marketing crap. it didnt oc worth a crap with tight timings. ended up running it 828mhz @ 4-4-4-12-16 and 2.4v.
using win7 x64 i couldnt really get past 3.456 stable so i ran the 207 x16.5 to get my 3.4ghz
i can attest to the fact that the 720 on an am2+ board stinks. but you really do have a great overclock on that combo.

this was a GREAT cheap set-up. sold it to my brother-in-law because his old 3700+ single core couldnt play the new medal of honor worth crap. ever try to play a fps getting about 15fps avg ? lmao.

i should add that i didnt like using over 1.475v either. unheatsinked vrm's, 4+1 phase, but on an asus board i wasnt scared.
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post #6376 of 6432
Nice! 3.5 should keep ya going a while longer.
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post #6377 of 6432
Wow these ram timings have made a huge difference. 860MHz @ 6-6-6-18-26 @ 2V

Just played a couple of rounds of BF3 at 215x16.5 = 3.55Ghz and 2.58Ghz NB without the usual BSOD or sound-lockup-brrrr happening in the first few minutes. Prime has been running for almost an hour without any workers dropping out. Might be able to crack 3.6Ghz stable after all - its only taken 3 years!!!
 
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13" beast
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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 ... 
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Crucial M4 64GB SSD, WD 640GB x 2 none Scythe Katana 3 Win7 64bit 
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Dell 24", Samsung 17" x 2 Logitech Illuminated Antec Earthwatts 750W Antec 300 
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Intel Core i5 2410M @ 2.3 Ghz stock Intel HD Graphics 3000 4GB 500 GB 
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Windows 7 WXGA (1366x768) 
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post #6378 of 6432
Hey!.....would a PhII x2 560 BE ,unlocked to 3 cores be eligible for the club?? blushsmiley.gif
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post #6379 of 6432
add me to the list

- Clock Speed 3120MHz
- Bus xMulti 13
- RAM Speed 640MHz
- Vcore Stock 1.32V (poor voltage control so it goes up to 1.42V)
- HT Link 2160MHz
- NB Speed 2160MHz
- Motherboard ASrock AOD790GX/128M
- Chipset 790GX
- CPU Cooling Rocketfish Universial CPU cooler tower type
- Number of Core's 4
- Cpuz Validation http://valid.canardpc.com/show_oc.php?id=2320306
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post #6380 of 6432
Hello guys, nice topic. I don´t have time to a read the full topic, but I have a question: I unlocked the ACC (4th core) in the mobo, the computer boot but freeze in 30 seconds of prime 95. The mobo is a biostar A790GX A3+ and the cooler is a V6GT. Which configs I have to change to stabilize? Sorry for english
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