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Official Phenom II x2 500 Club! - Page 159

post #1581 of 4289
Quote:
Originally Posted by thlnk3r View Post
Ocfanboy, have you tried backing down the OC a little bit to see if Prime95 passes? Dopamin3 also had a great suggestion about your memory. Remove two DIMMS and retest to see if that provides some stability in Prime. If it does then we know what the culprit was. It's been rumored for a while that running more than two sticks of memory puts a substantial amount of stress on the integrated memory controller. This is usually only apparent when overclocking and of course can prohibit you from overclocking any further.
Good luck
i will try take 2dimms out as soon as i have the time and if this proves to be stable then i will buy me 2x2048 mb 1066
also how do i find my memory bank cycle time(trc)?
seeing my timings are on 4-4-4-12 do i add 4+12 to make it 16?
thanks guys
Edited by ocfanboy - 9/5/09 at 2:31am
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post #1582 of 4289
ocfanboy... Nice OC!
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post #1583 of 4289
thlnk3r -for now I left it 3600Gh 2400 NB 1.3V 2000 HT and it looks stable. Lets see if it will work i will probably left it.
Edited by valdin - 9/5/09 at 10:32am
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post #1584 of 4289
for everyone who is wondering my cpu is a CACYC 0919 EPMU il do some oc tonite and see if i can get a little higher cpuz validation
    
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post #1585 of 4289
Quote:
Originally Posted by HondaGuy View Post
For all you guys having trouble unlocking your cores with ASUS Mobo's

ASUS provides Phenom II single core unlock function if your X2 cannot make it X4
http://www.xtremesystems.org/forums/...59&postcount=1
Poo. They don't support my mobo.
post #1586 of 4289
Quote:
Originally Posted by ocfanboy View Post
also how do i find my memory bank cycle time(trc)?
seeing my timings are on 4-4-4-12 do i add 4+12 to make it 16?
Ocfanboy, that is correct. From what I've been told by my local memory expert in the S939 club, if the number (tRC) is lower than the sums of tRP and tRAS then stability issues may occur.

Quote:
Originally Posted by valdin View Post
thlnk3r -for now I left it 3600Gh 2400 NB 1.3V 2000 HT and it looks stable. Lets see if it will work i will probably left it.
Valdin, that is definitely good news. Let us know how the testing goes.

Good luck
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post #1587 of 4289
Hello OCN. I'm new here. Wanted to get my name on the list. I've got 8 hours of prime95 stability with small fft's. I didn't have the same stability with large in place fft's, yet I haven't had any crashes under the load of anything I've ran so far.
Edit: I haven't had any good stability when unlocking the 2 other cores

Clock Speed: 3913.33 MHz
FSB x Multiplier: 200 x 19.5
Vcore: 1.487
NB speed: 2000
HT link: 2000
Motherboard: Asus Crosshair III
Cooling Method: Zalman 9900
CPU-Z: http://valid.canardpc.com/show_oc.php?id=688594
Edited by slimslider - 9/5/09 at 11:36pm
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post #1588 of 4289
Thread Starter 
Welcome to OCN. I'll add you to the list now

You can pass prime95 blend I assume... If not, your ram may be set at too high of a speed. Make sure to run memtest and make sure your ram is stable first.
Edited by vnv727 - 9/5/09 at 11:40pm
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post #1589 of 4289
Quote:
Originally Posted by slimslider View Post
Hello OCN. I'm new here. Wanted to get my name on the list. I've got 8 hours of prime95 stability with small fft's. I didn't have the same stability with large in place fft's, yet I haven't had any crashes under the load of anything I've ran so far.
Edit: I haven't had any good stability when unlocking the 2 other cores
Slimslider, welcome to Overclock.net

Have you tried just testing with two cores enabled instead of four? Perhaps the overclock itself is not stable and not the other two cores. Just to clarify are you running DDR3-1066 memory? Your cpu-z validation link indicated that you are 270Mhz overclocked from the factory stock speed (533Mhz). I'm not sure if that is even possible. That's an extremely high memory overclock...

Good luck
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post #1590 of 4289
thlnk3r: Yes I have tried testing the 4 cores at stock speeds and I can boot windows but not much else.

thlnk3r & vnv727: My memory is DDR3-1600mhz. So its only running at stock speeds, and so are the timings. I do have a bootable cd for memtest and have ran it but the timings that show in memtest aren't correct. I know I have them set right in the bios and cpu-z confirms this. I'm thinking the version of memtest I have is buggy.
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