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AMD Athlon X2 7750 BE OC Club - Page 97

post #961 of 1165
i got my Kuma 7750+ BE few days ago and i cant hit 3.2 ghz right now...i need bigger cooler to get over 1.4 volts because if i get to 1.45 volts my CPU is at 70 and rising...i have Arctic Freezer 64 PRO...in about 2 days I will got Thermaltake DuOrb and i will see...for now I am at 3.0 ghz.and i have something to show you guys...i waked up yesterday and turn up my PC and i got this....



i have Biostar TA790GX 128M,when i saw this i turned on Prime and my PC restarted and everything was normal...I think this CPU wants to be Quad
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post #962 of 1165
Here me oc, totally stable with vcore 1.47v, mobo Gigabyte MA790X-UD4P, cooler Sunbeam Core Contact Freezer (temp cpu=35º)...I am testing to overcome this, have come to 3333 mhz but continue trying!

http://valid.canardpc.com/show_oc.php?id=568648
Edited by gmanu - 5/19/09 at 8:39am
GUSTAVO-PC
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GUSTAVO-PC
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post #963 of 1165
This is a good chip. I believe you can unlock the core on these. Not shure.. gl
    
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Intel Core 2 Q6600 GO @ 3760 Mhz@1.504v 0.0 vdrop ASUS P5K @ 1880 Mhz FSB @1.7v Pencil Voltmod 470x8 EVGA 8800 GT SC @740/1850/1085 Mhz@1.1v G.SKILL PC8000 8GB 2GBx4@ 940 Mhz@2.10v@5-5-4-12 
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post #964 of 1165
Quote:
Originally Posted by TheLastPriest View Post
Ok so I am no professional overclocker to say the least (I am stuck at 2.9 myself) but I do have some input on your post

1) It has been found that certain batches of these processors OC better then others, from what I have read there are some that sit at 2.9ghz on stock voltage and need a massive voltage bump to get over that mark and then it seems for the lucky one's they get to about 3.1-3.2ghz before needing that voltage bump

2) Cool and quiet is going to make you crash more, with cool and quiet to be effective the multi and all other settings need to be set to auto so when the processor loses voltage from the down clocking cool and quiet provides the multi drops as well, if not then your chip continues to run at that higher multiplier with drastically reduced voltage, just runs out of steam and crashes. I have read that the new phenom II can OC and run cool and quiet and I am not sure if that has to do with the chip or the chipset so i could be off the mark here but this is definitely true on my board and processor combo.

If I am mistaken on any of these points please let me know. I hope this helps, I was able to get mine a little more stable when bumped to 1.5v but still would crash within 15-20min of P95 small test. Wish you the best of luck in getting past this, so far I have been eluded..
TLP
Sorry for my late response, and thanks for yours, bro...

i upgraded my psu to 550W corsair, and replace my sapphire hd3450 with msi 4650 d1g, i did this
'cause the previous psu seems to be bottleneck to the vcore (430W simbadda same as less than 250W pure power)
...and hd4650 to eliminate the low end hybr cf hd3450 - hd3200 sys, which reduce momboard heat (no hybr cf burden to it), and no ram cut which previous assigned to the hyb cf.

yeah as your advice i try to disabling the c&q, and it helps a bit somehow to reduce system crash...
and your last point is more worth for me (some priority that lose from my sight a time later), ...
Quote:
Originally Posted by TheLastPriest View Post
...I was able to get mine a little more stable when bumped to 1.5v...
the vcore, since OCed chip is "voltage/power thirst like"...i have to bump it to..., now the problem is...in msi k9a2gm BIOS there is no option to modified the value of vcore, even i updated to the latest bios via msi live update (official update method recommended by them)
...and via 3rd party software such amd overdrive, the vcore calue is still uneditable

..is there somebody got some issue how to change the vcore, please share some advice...?
------------------------------------
System
7750BE | MSI K9A2GM-V2, 780G-sb700 | Corsair dominator twin (2x1gb) 8500C5D-1066 | Xigmatek Nepartak | Corsair VX550 550W | MSI hd4650 D1G ddr2 | 160gb seagate | samsung DVDRW - LG DVDR
Edited by foxes - 6/10/09 at 10:40am
Classic Pair
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use the table surface :P 
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Classic Pair
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Rana X3 450 3.2 => Deneb X4 B50 3.5 Biostar TA790GXB A2+ Rev.6.0 Sapphire 4850 GDDR3 512mb/256bit Team Elite 2x2gb PC6400 
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use the table surface :P 
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post #965 of 1165
I just wanted to clarify since I have seen a lot of these questions. Yes you can unlock the other cores IF you have a 790gx or 790x chipset (the sb750 southbridge w/ACC function). Not all of these chips will unlock (mine won't) so it's luck of the draw. This chip IS a Phenom I with 2 disabled cores. I have done my research on this but I welcome any corrections or additional comments. I hope this helps someone.
Kuma Core
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Kuma Core
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post #966 of 1165
Triple C ... can You add me on list now?

My first ever overclocking. 3.2 GHz Stable as a rock. ( I got 3.3Ghz, but it wasnt stable, got bluescreen on 3dMark, so I dont count that)

http://img413.imageshack.us/img413/226/oc3200.jpg

with stock cooler with IC Diamond 7 Carat Thermal Compound.

Idle temperatures around 24C.

Clock Speed: 3200 MHz
BusxMulti: 200 x 16
RAM SPEED: 1066MHz
Voltage: 1.440V
HT Link 1800 MHz
Mobo: ASUS M4N72-E
Chipset: NVIDIA nForce 750a SLI
Cooling: AMD Stock cooler (air)
Edited by Korak - 5/27/09 at 1:20pm
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post #967 of 1165
Quote:
Originally Posted by Korak View Post
Triple C ... can You add me on list now?

My first ever overclocking. 3.2 GHz Stable as a rock. ( I got 3.3Ghz, but it wasnt stable, got bluescreen on 3dMark, so I dont count that)

http://img413.imageshack.us/img413/226/oc3200.jpg

with stock cooler with IC Diamond 7 Carat Thermal Compound.

Idle temperatures around 24C.

Clock Speed: 3200 MHz
BusxMulti: 200 x 16
RAM SPEED: 1066MHz
Voltage: 1.440V
HT Link 1800 MHz
Mobo: ASUS M4N72-E
Chipset: NVIDIA nForce 750a SLI
Cooling: AMD Stock cooler (air)
idle temps dont mean too much, you should try to up cpu-nb volts, and then try 1.4875v at 3.3,
Dev0
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Dev0
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post #968 of 1165
Quote:
Originally Posted by bucdan View Post
idle temps dont mean too much, you should try to up cpu-nb volts, and then try 1.4875v at 3.3,
I had 3.3 GHz with 1.5v. It run only 1st test on 3dMark06, but then crash. Is it still safe to pump up voltages even more?

Thou Im happy for this processor only 62 €uros.

what is vddnb voltage? at the moment that has been 1.4250v. Should that increase also?
Edited by Korak - 5/27/09 at 2:02pm
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My System
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Intel i7-2600K Asus Maximus IV Gene-Z Evga GTX 580 SC Black Ops Corsair Vengeance 2x4GB 1600MHz CL8 
Hard DriveOptical DriveOSMonitor
Intel 80GB & 120GB SSD / WD Cav.Black 1TB SATAIII LG-Blu-ray Windows 7 Ultimate 64bit LG W2442PA-BF 24" LCD, 1920x1080 
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Logitech G510 Corsair HX850W Antec P193 with Gentle Typhoons & NoiseBlockers Roccat Kone + 
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SteelPad 4S 
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post #969 of 1165



Core speed: 3210.27MHz
Core Multiplier: 15x
NB Speed: 1926.07MHz
RAM: 856MHz
HT reference clock: 214.02MHz
Voltage: 1.32V
RAM Timing: 5-5-5-15
Motherboard: Gigabyte MA78GM-US2H
Chipset: 780G
RAM: Corsair XMS2 DDR2 800MHz
Edited by desiibond - 5/28/09 at 2:15am
post #970 of 1165
^^Nice OC considering you use stock cooling
The 0|d Horse
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The 0|d Horse
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