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AMD Athlon X2 7750 BE OC Club - Page 98

post #971 of 1165
Quote:
Originally Posted by MetalheadGautham View Post
^^Nice OC considering you use stock cooling
Thank you
post #972 of 1165
Just to get in on the list. Should end up on 25... . Not done yet though!


Clock speed: 3125MHz
BusxMulti: 202x15.5
RAM Speed: 1075.4MHz
Voltage: 1.550V
HT Link: 1814.6MHz (default)
Mobo: ECS A780GM-A
Chipset: 780G
Cooling: AMD Stock

With the NB frequency at 2GHz, the NB gets 'a little hot', but I'm hoping to rectify that tomorrow. I hope

http://valid.canardpc.com/show_oc.php?id=578011


PS. This is 24/7 stability!
Edited by fransurbo - 6/1/09 at 2:21pm
Celia v3
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Celia v3
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post #973 of 1165
Quote:
Originally Posted by fransurbo View Post
Clock speed: 3125MHz
BusxMulti: 202x15.5
RAM Speed: 1075.4MHz
Voltage: 1.550V
Slightly better...

Clock speed: 3134.6MHz
BusxMulti: 202x15.5
RAM Speed: 1078.6MHz
Voltage: 1.63V (1.55V + 80mV Over voltage)
http://valid.canardpc.com/show_oc.php?id=578974

With this config, I get 63ºC/144ºF on the cores at load... Still within margin . But it's noicy!! Have to replace the fan only if nothing else!

Quote:
Originally Posted by fransurbo View Post
With the NB frequency at 2GHz, the NB gets 'a little hot', but I'm hoping to rectify that tomorrow. I hope
Bought a Zalman ZM-NB47J cooler which I mounted a 40mm (1.6") on the side in true MacGyver style .

In this test, I only ran the NB at the default 1.8GHz and the temp is TMPIN0=66ºC/152ºF and TMPIN1=55ºC/130ºF at load (42ºC/107ºF and 34ºC/93ºC respectivly on idle). So I managed to lower the temps quite drastically!
I'll see if I can increase the NB speed as soon as the stability test is done.
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Celia v3
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post #974 of 1165
I have just been informed that I am "mental" for using 1.6+ volts on my 7750. Can anyone help me figure out how to get my sad little 7750 moving a little faster than the "Stable" 2.8 settings I found. Help Please! Could it just be a bad chip?

---------------------------
Is pushing the CPU voltage higher dangerous mainly because of heat? I have been trying to overclock my 7750 and finding that my temperatures stay under control as I reach 1.65 V (100% CPU @ 48-50 C). I am having a terrible time overclocking my 7750 and finding I actually get better results with quite high voltage. I am using OCCT to stress test and validate stability.

I can get it to boot and run at 3.4 and 3.5 with 1.6 V, but OCCT errors out in less than an hour.

The ONLY stable configuration I have gotten is 2.8 with a x14 multiplier and VCore of 1.4. Everything over that fails. I am getting frustrated and tempted to really turn up the volts.

Is it possible I have a bad chip?

Thanks for reading my ramblings, I hope you can provide some insight.


My Build:
Vista Home Premium SP1 64-bit
GIGABYTE GA-MA790X-UD4P AM3/AM2+/AM2
AMD Athlon 64 X2 7750 Kuma
ARCTIC COOLING Freezer 64 Pro
G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 1066 (PC2 8500)
ATI Radeon 1950 512MB
Antec Three Hundred Black Steel ATX Mid Tower
post #975 of 1165
Even my "stable" 2.8 settings just threw a CPU error in OCCT. This is getting very frustrating. I should mention that I am doing all of my changes in the BIOS. AMDOverdrive does not seem to like Vista 64bit & GigaByte cards and the GigaByte EasyTune tool has problems with Vista 64-bit also. Very very frustrating.
post #976 of 1165
@mjsandbe :
yo, maybe you are not lucky enough with your procie, and IMO you've got a bad chip, 1.4V for 2.8 is strange, on my kuma i've got 3.2 when the voltage hit 1.4V

ps : sorry for my bad english
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post #977 of 1165
I finally did it! 3ghz, stable in P95 for two hours until I stopped it. Took an absurd amount of changes to do it and I dont see myself going too much higher because I had to go .100 over stock voltage on the CPU to 1.424v and .050 on the north bridge. Also pushed the north bridge and HT up to 2200Mhz, but I did get her there. I tried pushing the clock speed and the multiplier each a little higher with an additional voltage bump of .025 to the cpu but could barely boot and crashed soon after. So unless someone has some good idea's that don't involve upping the voltage I guess 3ghz is where I am staying. Sweet though, one of the reasons I bought this processor was so I could save some money and just bump her up to 3Ghz, well my luck isnt so great so it wasnt quite as easy as I had hoped but its done. Sweet, and my temps still stay between 30 and 45 degrees so it works for me. Thanks for all the help everyone!
LL
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post #978 of 1165
Add me to the list, been runnin this thing like this for a week now. Quite nice really

Clock speed: 3106 MHz
BusxMulti: 200 x 15.5
RAM Speed: 534.5MHz
Voltage: 1.376V
HT Link: 1803.8MHz (default)
Mobo: Gigabyte MA770-UD3
Chipset: AMD 770
Cooling: Arctic Cooling Freezer 64 Pro
LL
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post #979 of 1165
Just to interject something, the list hasn't been updated in ages.
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post #980 of 1165
too bad mine is not BE
Jurang Setan
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Jurang Setan
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