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AMD Athlon X2 7750 BE OC Club - Page 91

post #901 of 1165
It's the first time I use an AMD cpu, and it's the first time I tried to use daily a overclocked cpu. I am using the stock cpu cooler, not very effective I guess. By now, my best result is 3.2g with cpu vid at 1.3375v (pass 32m digits super_pi calculation). I can boot the system at 3.24g with ASRock's bios oc options (1.4v), but that isn't stable--the computer would reboot while testing 3dmark06, cinebenchmark or super_pi. Don't know why. It's weird though, when I ran 32m digits super_pi at default clock, I got 31min55sec; but when I ran it at oc 3.2g, I got a 34min (16k to 16m pi calc is much faster than default clock). Maybe it is the harddisk's fault? I'm running xp on a 8-year-old ide disk.

I forgot to send the validation file, here is the link:
http://valid.canardpc.com/show_oc.php?id=553829

Edited by thomas_zhu - 4/25/09 at 6:05pm
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post #902 of 1165
YES!!!! Finally. 1.52 volts

No, it isn't stable at all.

http://valid.canardpc.com/show_oc.php?id=553454

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post #903 of 1165
Hi all,

Kind of new in overclocking but i got the luck to start with a good overclocker.

Here is the validation link:

http://valid.canardpc.com/show_oc.php?id=553718
post #904 of 1165
Quote:
Originally Posted by thomas_zhu View Post
It's the first time I use an AMD cpu, and it's the first time I tried to use daily a overclocked cpu. I am using the stock cpu cooler, not very effective I guess. By now, my best result is 3.2g with cpu vid at 1.3375v (pass 32m digits super_pi calculation). I can boot the system at 3.24g with ASRock's bios oc options (1.4v), but that isn't stable--the computer would reboot while testing 3dmark06, cinebenchmark or super_pi. Don't know why. It's weird though, when I ran 32m digits super_pi at default clock, I got 31min55sec; but when I ran it at oc 3.2g, I got a 34min (16k to 16m pi calc is much faster than default clock). Maybe it is the harddisk's fault? I'm running xp on a 8-year-old ide disk.
u should be able to unlock the 2 cores to make a quad with that board
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post #905 of 1165
I wont get one bit furher, tried everything i think.
205 mhz just wont, multiplier 17 also just wont..
this is possibly the best i can get..

anyone any suggestions?


http://valid.canardpc.com/show_oc.php?id=553748
post #906 of 1165
just got the kuma, and stated oc'n



http://valid.canardpc.com/show_oc.php?id=553776
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post #907 of 1165
Quote:
Originally Posted by el gappo View Post
u should be able to unlock the 2 cores to make a quad with that board
Really? How? I said I'm new to OC, and the stability is my first concern as long as the box is fast enough. Will the unlock thing hurt my cpu?
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Antec 550w 
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post #908 of 1165
I googled and found that the motherboard in the Korean unlock case was ASRock A790GX/128M. Mine is 790GMH, I wonder whether or not their method works on this mb.
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Antec 550w 
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post #909 of 1165
I followed that source a little bit more, but failed to find out how it worked. As to the ACC options in BIOS, I haven't tried that yet. However, since I have updated the BIOS to the lastest version the minute I got the motherboard. I really doubt it could be buggy enough to allow the unlock. Downgrade the bios? Maybe I will try it when there is more proof that 7750be is really a disabled quad. Maybe it's just me, but I don't think AMD would sell quad-core cpu, at least with quad-core potential, at a dual-core price if the disabled cores were able to work as well as the other two. That would be dumb.
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AMD Athlon X2 7750 BE ASRock A790GMH/128M HD 3300 Graphics Kingston 2G DDR2-800 x2 
Hard DriveOptical DriveOSMonitor
Seagate st340823a+sx1181677lcv LG 4168 windows xp, fedora EIZO 965 
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Antec 550w 
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T-01
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CPUMotherboardGraphicsRAM
AMD Athlon X2 7750 BE ASRock A790GMH/128M HD 3300 Graphics Kingston 2G DDR2-800 x2 
Hard DriveOptical DriveOSMonitor
Seagate st340823a+sx1181677lcv LG 4168 windows xp, fedora EIZO 965 
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Antec 550w 
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post #910 of 1165
Quote:
Originally Posted by thomas_zhu View Post
I followed that source a little bit more, but failed to find out how it worked. As to the ACC options in BIOS, I haven't tried that yet. However, since I have updated the BIOS to the lastest version the minute I got the motherboard. I really doubt it could be buggy enough to allow the unlock. Downgrade the bios? Maybe I will try it when there is more proof that 7750be is really a disabled quad. Maybe it's just me, but I don't think AMD would sell quad-core cpu, at least with quad-core potential, at a dual-core price if the disabled cores were able to work as well as the other two. That would be dumb.
it is definately a disabled quad, wether or not those cores are faulty is yet to be know until u try m8, but enabling acc isnt going to harm anything, u may need more voltage if it works. let me know neway ive been wanting to do it for ages, if u have the same southbridge u shud be able to
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