Post your AMD unlock pass/fail here! v. 2.0 + How to unlock (Please limit discussion)

ordovician

2[H]4U
Joined
Dec 28, 2007
Messages
2,625
Message from the threadkeeper:

Welcome to the new thread! It has been updated to reflect the latest findings. If you have already reported your unlock in the original thread, DO NOT repost! You are already included! Feel free to comment or ask quick questions about your or other's unlock. We do encourage brief discussion, since it often provides more information. Please comment or make inquiries. However, please do not use this thread if you are having major difficulties with your unlock. Please start a new thread for that.

-Ordo

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READ THIS FIRST! And make sure to use our template to report results ↓scroll down↓
Before you attempt to unlock your CPU by setting ACC (Advanced Clock Calibration) to "Auto," please make sure you go through this checklist:


1. Turn off Cool N Quiet
Re-enable later if you want

2. Boost your vcore by ~.05V.
You should have at least 1.35V going to the CPU initially. I personally prefer 1.4V with a good cooler. Most boards have an "add voltage option" e.g. +0.05V, +0.075V, and an "adjust voltage" option, e.g. set voltage to 1.35V, 1.375V, 1.40V, etc. Use the "add voltage option"! Doing so will allow you to more easily enable CnQ later, since this option often adds the "plus volts" to every clocked-down mode in CnQ.

3. Do not touch your CPU's multiplier or try to OC your system!
Make sure you set up your system stable and 100% functional before attempting to unlock! Eliminate all other variables! Are your RAM timings right? Is the system Prime/OCCT/any other stress test stable in the first place?

4. Your CPU temperature reporting will become screwy after the unlock (-256C). This is normal.
Most BIOS HWMonitor functions still work - use those. Depending on your mobo, programs like SiSoftware Sandra or Everest might work.

5. Do not use the stock heatsink. Do not use the stock heatsink. Do not use the stock heatsink. Do not use the stock heatsink.
Yes, we know there are exceptions, but a good cooler is a sound investment. The stock HSF that comes with the lower-end Phenoms/Semprons is NOT a good cooler and can make an otherwise 100% successful unlock unstable or even fail under load. Furthermore, the inability to monitor temps while at load in Windows means you have no idea what your load temps are when unlocked. You want a large "safety net" in this regard. A list of quality heatsinks can be found below. Head on over to the "Hot Deals" and "For Sale/Trade" forums for help getting a deal. Trust us, it's worth it. For a more detailed mathematical explaination on why you need a good HSF, click here.

6. Most boards have multiple ACC settings.
If "auto" doesn't work, try others.

7. Make sure your motherboard has adequate voltage regulation.
Test this with OCCT. When it completes its run, look at the graphs for the variation in the voltage of the processor at full load. If it doesn't vary much, then you're good. But if it does, that's a sign of poor voltage regulation. Another sign is having a lot of vdroop. The higher the power phase on your mobo, the better. If in doubt, stick to name brand motherboards like Asus and Gigabyte. Look for 8-phase power designs, or higher. Also look for cooling on the mosfets. A lot of cheaper boards do not come with heatsinks on the mosfets. When mosfets overheat, they still "work" but provide unstable voltage to the CPU, causing instability (and even death). With a little 80W dual core, it's not an issue, but for your shiny new unlocked and overclocked quad-core monster, it will make a difference! Several options are available out there, but we recommend cheap, simple BGA heatsinks.

8. Make sure you have a quality power supply.
This may seem like a no-brainer, but bad power is bad power.

9. If all else fails...
These desperate measures might help:
Underclock the CPU
Disconnect all case fans from the motherboard
Disable hibernation in Windows
Raise/lower the Northbridge clock and/or HT clock
Bump your north bridge voltage slightly
Re-seat your HSF
Re-seat the motherboard power connectors

10. Be prepared for the reality that you are not guaranteed an unlockable CPU no matter what motherboard, bios or CPU stepping you have.
But we like those odds, don't we ;)

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Once you have completed the necessary tasks, please fill out this template for reporting your unlock pass/fail.
Please report STABLE successes only. If you are still stability testing, don't report until you know for sure. Even if your processor failed, we still want to hear about it!


Those who omit mandatory information will not be included in the database!

---MANDATORY INFORMATION---
Processor:
Unlock pass or fail:
Motherboard:
CPU Cooler:
Voltage:

---ADDITIONAL INFORMATION---
CPU Stepping:
BIOS Version:
Stability test application(s) used:
Amount of time passed in stability app:
Any other pertinent info:

*Note: Henceforth, dual cores that only unlock to triple cores will be considered "successes." It is such a low percentage of processors that pass with three cores and fail with four that it is not worth the time or effort to distinguish them.

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Motherboard/Bios known to unlock:
*Note most SB710/SB750 boards will allow unlocking!

Motherboard: ASUS M4N98TD Evo
Bios:

Motherboard: Asus M4A785-M
Bios: 0406, 0604

Motherboard: ASUS M4A785D-M PRO
Bios: 405 ,

Motherboard: ASUS M4A785TD-M Evo
Bios: 0603 ,

Motherboard: ASUS M4A785TD-V Evo
Bios: 0403 ,

Motherboard: ASUS M3A78-T
Bios: 1403

Motherboard: ASUS M4A79 Deluxe
Bios: 1602 ,

Motherboard: ASUS M4A78T-E
Bios: 2105,

Motherboard: ASRock A785GXH/128M
Bios: 1.20

Motherboard: Biostar TA790GXE 128M
Bios:

Motherboard: Biostar TA790GXE
Bios:

Motherboard: Biostar TA790GX A2+
Bios: 78DBA113 ,

Motherboard: Biostar TA790GX 128M
Bios: 78DEA113 , 78DBA114 ( This is a mod'd bios by Rebels Haven )

Motherboard: DFI LANPARTY JR 790GX-M3H5
Bios: D7JD519A

Motherboard: DFI LanParty DK 790GX-M2RS
Bios: R7DG225A ( beta bios ) ,

Motherboard:DFI LanParty DK 790FXB-M2RSH
Bios: R7SD820A,

Motherboard: Gigabyte GA-MA790GPT-UD3H
Bios:

Motherboard: Gigabyte GA-MA790GP-UD4H
Bios: F1 , F3a , F3

Motherboard: Gigabyte GA-MA790X-UD4P
Bios: F5 , F5a ,

Motherboard: Gigabyte GA-MA790FXT-UD5P
Bios: F3k ,

Motherboard: Gigabyte GA-MA770T-UD3P
Bios: F2c , F2

Motherboard: Gigabyte GA-MA770-UD3
Bios: rev 2.0 ,

Motherboard: Gigabyte GA-MA790XT-UD4P
Bios: F4g ,

Motherboard: Gigabyte GA-MA780XT-UD4P
Bios: F4g ,

Motherboard: Gigabyte GA-MA785GM-US2H
Bios:

Motherboard: Gigabyte GA-MA785GMT-UD2H
Bios: F5

Motherboard: Gigabyte GA-MA785GT-UD3H
Bios:

Motherboard: Gigabyte GA-MA790X-UD4P
Bios: F5,

Motherboard: MSI 790FX-GD70
Bios: 1.5b1 ,

Motherboard: MSI 770-C45
Bios: 1.4b1

Motherboard: MSI 785GM-E51
Bios:

Motherboard: MSI 785GM-E65
Bios: 2.2

Motherboard: MSI 785GT-E63
Bios: V28.2

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Top Heatsink Manufacturers:
Any HSF by any one of these companies will be fantastic.

Thermalright
Prolimatech
Noctua
Xigmatec

Other Good HSFs:

Arctic Cooling Freezer 64 Pro
Arctic Cooling Freezer 7 Pro Rev. 2
Arctic Cooling Freezer EXTREME
Sunbeam Core Contact
Rosewill RCX-Z5
Coolermaster Hyper 212 Plus
Coolermaster Hyper TX3
Coolermaster Hyper N520
Coolermaster Hyper TX2
Coolermaster Hyper Z600R
Coolermaster V8
OCZ Vendetta
OCZ Vendetta 2
Tuniq Tower 120
Kingwin XT-964
Kingwin XT-1264
Zerotherm Nirvana
Thermaltake Contac 29
Corsair H50
Scythe Mugen 2
 
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===RESULTS===

Sempron 140:
Failed to unlock: 2
Batch #'s: D934BPMW
Unlocked: 5
Batch #'s 0932gpmw

Athlon X2 5000+ 45nm AM2+:
Failed to unlock: 3
Batch #'s: 0947EPMW
Unlocked: 12
Batch #'s CACZ AC Stepping 0938, 820, 0932FPBW, 0944BPMW, 0944BPAW, 0946BPMW

Athlon X2 5200+ 45nm AM3:
Failed to unlock:
Batch #'s:
Unlocked:
Batch #'s

Athlon II X3 (undifferentiated):
Failed to unlock: 2
Batch #'s: 0939CPCW
Unlocked: 3
Batch #'s: 0949BPMW

Phenom II 545:
Failed to unlock: 0
Batch #'s
Unlocked: 2
Batch #'s

Phenom II 550:
Failed to unlock: 11
Batch #'s 0921FPMW
Unlocked: 55
Batch #'s 0921GPMW, 0922MPMW, 0921APBW, 0921APAW, 0922APMW, 0925BPAW, 0929xxxx, 0931xxxx, 0940FPMW, 0921APBW, 0921APAW, 0927MPMW, 1004CPMW

Phenom II 555:
Failed to unlock: 6
Batch #'s
Unlocked: 26
Batch #'s 1004CPMW, 1004BPMW, 1004EPMW, 1008FPMW, 1009APMW

Phenom II 710:
Failed to unlock: 0
Batch #'s
Unlocked: 9
Batch #'s

Phenom II 720:
Failed to unlock: 10
Batch #'s 0907DPMW
Unlocked: 38
Batch #'s

Phenom II 740:
Failed to unlock:
Batch #'s
Unlocked: 1
Batch #'s

Phenom II X4 8xx (4mb to 6mb cache unlock):
Failed to unlock: 0
Batch #'s
Unlocked: 1
Batch #'s
 
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---MANDATORY INFORMATION---
Processor:phenom II X2 550BE
Unlock pass or fail:PASS
Motherboard:Asus M4A785-M
CPU Cooler:Stock HS/F
Voltage:1.3

---ADDITIONAL INFORMATION---
CPU Stepping:CACYC AC 0951 APMW
BIOS Version:05.03
Stability test application(s) used:prime95
Amount of time passed in stability app:12 hrs+
Any other pertinent info:total stock settings 'fer $h!t$-n-giggles' thought I'd try. Now running 3.6GHz stable with Coolermaster Hyper 212. 8 hrs Prime @ 1.30v still/ 40c max temp
 
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Processor: AMD Athlon X2 5000 2.2 MHz true dual core
Unlock pass or fail: Passed
Motherboard: MSI 785GM-E45
CPU Cooler: Thermalright HR-01 Plus
Voltage: 1.36

CPU Stepping: CACZC AC
BIOS Version: 8.20 or 820
Stability test application(s) used: OCCT, S&M, Prime95, IntelBurnTest, Dragon Age: Origins
Amount of time passed in stability app: longest 7hrs
Any other pertinent info: Unlocked to Phenom FX-5000 quad core (Deneb) with 6mb L3. OCed stable to 3.3GHz. @1.42v
 
----Mandatory Information----
Processor: AMD Phenom II X2 555 Black Edition
Unlock pass or fail: FAIL
Motherboard: ASUS M4A78T-E
CPU Cooler: TRUE
Voltage: 1.5125

---Additional Information---
CPU Stepping: CACAC AC 1004CPMW
BIOS Version: 2503
 
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----Mandatory Information----
Processor: AMD Phenom II X2 550 Black Edition
Unlock pass or fail: PASS
Motherboard: ASUS M4A785-M
CPU Cooler: TRUE
Voltage: 1.4

---Additional Information---
CPU Stepping: CACYC AC 0940FPFW
BIOS Version: 0406, 0604
Stability test application(s) used: Prime95 25.8 & OCCT
Amount of time passed in stability app: 12 hours Prime with no OC, and 5 hours OCCT @ 3.6GHz w/1.425v
 
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----Mandatory Information----
Processor: Phenom X2 720 BE
Unlock pass or fail: Pass
Motherboard: DFI LANPARTY JR 790GX-M3H5
CPU Cooler: Corsair H50
Voltage: 1.35v

---Additional Information---
CPU Stepping: N/A
BIOS Version: D7JD519A
Stability test application(s) used: Prime95, OCCT, IBT
Amount of time passed in stability app: 24 hours
 
Thread is now live and stickied! Please feel free to comment, but if you are having issues, please don't clog up this thread asking for help - start a different thread. Also, please use the template! It makes recording success/failure MUCH easier and helps others learn what works and what doesn't!
 
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---MANDATORY INFORMATION---
Processor: Phenom II X2 555 BE
Unlock pass or fail: Pass (4 cores)
Motherboard: Asus M4A785TD-V Evo
CPU Cooler: Hyper 212+
Voltage: BIOS: Auto, HWmon: 1.30v-1.36v

---ADDITIONAL INFORMATION---
CPU Stepping: Will update next time I reseat HSF.
BIOS Version: 0602
Stability test application(s) used: Prime95
Amount of time passed in stability app: 8hrs (didn't stability test at stock clock speed 4x3.8, bios vcore 1.4375, hwmon vcore 1.39-1.54...quite a range)
Any other pertinent info: When in dual core mode with temp sensors "working", CPU claims it idles at 21c, mobo socket temp reports around 28c, loads to 39c on both internal and mobo temp sensors. Loads to 48c on mobo sensor as a quad core.
 
On the GigaByte 785 US2H,look at sig.,using F7 bios is able to unlock a 720BE processor.I have replaced HSF and will make a run at 3.8 ghz again.Last attempt I though I had fried my machine and backed way off.Will repost with all other info.when I have time.
 
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i just bought a 550BE cpu. my batch is 0949EPMW. i am wondering does anyone have this batch#. is this a good batch #. i am wondering c2 of 550Be better than c3 of 550be.
 
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OP:

If we make some changes, like a new BIOS revision, should we just edit our original post or post again?
 
OP:

If we make some changes, like a new BIOS revision, should we just edit our original post or post again?

First, make sure it is new information, and that the stepping, bios, etc. isnt already listed. If it's new info, then just PM me. OR, you could just quote your original post with the corrected information, making it clear what has changed.

Either way works for me.
 
---MANDATORY INFORMATION---
Processor: 550
Unlock pass or fail: Pass
Motherboard: GA-MA790X-UD4P
CPU Cooler: H50
Voltage: 1.40

---ADDITIONAL INFORMATION---
CPU Stepping:
BIOS Version:
Stability test application(s) used:
Amount of time passed in stability app:
Any other pertinent info:
 
---MANDATORY INFORMATION---
Processor: Phenom II x2 555
Unlock pass or fail: Pass
Motherboard: Asus M4A79XTD EVO
CPU Cooler: Xigmatek HDT-s1284
Voltage: Default

---ADDITIONAL INFORMATION---
CPU Stepping: CACAC AC 1004CPMW
BIOS Version: 0704
Stability test application(s) used: Prime95
Amount of time passed in stability app: 7.5 hours
 
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Processor: Phenom II X2 550 BE
Unlock pass or fail: Pass
Motherboard: ASRock A785GXH/128M
CPU Cooler: Xigmatec Dark Knight
Voltage: 1.4

---ADDITIONAL INFORMATION---
CPU Stepping:
BIOS Version:1.20
Stability test application(s) used:LinX
Amount of time passed in stability app: 8 hours
 
Processor: X3 720 BE
Unlock pass or fail: Pass
Motherboard: MSI 785GM-E51
CPU Cooler: CM TX-3 Push-Pull
Voltage: 1.50

CPU purchased 2/10/10 on newegg.com for 105$ OEM. 3 cores and 4 cores stable at 3.6GHz (10 hours prime95 small FFTs)
 
---MANDATORY INFORMATION---
Processor: PII 555 BE
Unlock pass or fail: pass
Motherboard: Asus M4A785TD-V EVO
CPU Cooler: Stock
Voltage: Stock (1.35v I think)

---ADDITIONAL INFORMATION---
CPU Stepping: N/A
BIOS Version: 0602
Stability test application(s) used: Prime95
Amount of time passed in stability app: 9hrs (so far)
Any other pertinent info:
 
---MANDATORY INFORMATION---
Processor: Phenom II x2 555
Unlock pass or fail: Pass 3 Cores (0,1,3)
Motherboard: Asus M4A79XTD EVO
CPU Cooler: Xigmatek Dark Knight
Voltage: Auto

---ADDITIONAL INFORMATION---
CPU Stepping: CACAC AC 1004EPMW
BIOS Version: 0704
Stability test application(s) used: Prime95
Amount of time passed in stability app: 9 hours
 
---MANDATORY INFORMATION---
Processor: Phenom II x2 550
Unlock pass or fail: Pass (3 core)
Motherboard: GA MA790X-UD4P
CPU Cooler: AC 64 PRO
Voltage: 1.35

---ADDITIONAL INFORMATION---
CPU Stepping: (unknown)
BIOS Version: F9
Stability test application(s) used: Prime95
Amount of time passed in stability app: 6+ hours
Any other pertinent info: OC'ed to 3.7Ghz on 1.425, CPU-NB VID is 1.15
 
---MANDATORY INFORMATION---
Processor: Phenom II x2 555BE
Unlock pass or fail: Pass (4 core)
Motherboard: Asus M4A785-M
CPU Cooler: Thermalright Ultima 90 w/ 120mm yate loon fan
Voltage: 1.46

---ADDITIONAL INFORMATION---
CPU Stepping: CACAC AC 1004EPMW
BIOS Version: unknown
Stability test application(s) used: Prime95 and OCCT
Amount of time passed in stability app: 6+ hours
Any other pertinent info: OC'ed to 3.8Ghz on 1.46

OCCTandCPU-Zat38GHz.jpg
 
---MANDATORY INFORMATION---
Processor: AMD Athlon X2 5000 (Deneb Core)
Unlock pass or fail: FAIL
Motherboard: ASUS and Gigabyte Micro ATX 785 boards
CPU Cooler: AMD Phenom 965 Heatsink
Voltage: 1.40
 
----Mandatory Information----
Processor: AMD Phenom II X2 555 Black Edition
Unlock pass or fail: PASS
Motherboard: ASUS M4A79XTD EVO
CPU Cooler: TRUE
Voltage: 1.4

---Additional Information---
CPU Stepping: 1004CPMW
BIOS Version: 0901
Stability test application(s) used: OCCT/Linpack
Amount of time passed in stability app: Stable for 12 hours OCCT at default clocks. Tested for 6 hours stable @ 3.6 with 1.425 volts. All other settings on AUTO using OCZ DDR3 @ 1333, 1.66v, and 9-9-9-27 1T timings. I played BC2 for a few hours yesterday with no trouble at these OC'd settings. I have another 1004CPMW that I also got from Microcenter that is identical to this chip. Both of them will boot into Windows @ 4GHz but will not stay stable for more than 5 minutes under full load. This is just with using the 20x multi, as I am new to overclocking Phenoms.
 
---MANDATORY INFORMATION---
Processor: Phenom II 550BE
Unlock pass or fail: pass (all 4 cores)
Motherboard: Gigabyte GA-MA790FXT-UD5P
CPU Cooler: OCZ Vendetta 2
Voltage: 1.375

---ADDITIONAL INFORMATION---
CPU Stepping: CACYC AC 0921APBW (bought used off ebay)
BIOS Version: F7 (ACC setting: hybrid, auto)
Stability test application(s) used: Prime 95 In Place Large FFTs
Amount of time passed in stability app: 24+ Hrs
Any other pertinent info: I have not tested at stock speeds only the one listed in the picture. Was told it does 3.5Ghz on stock voltage.
24HrsP95.jpg
 
---MANDATORY INFORMATION---
Processor: Phenom II x2 555BE
Unlock pass or fail: Pass (4 core)
Motherboard: Asus M4A78T-E
CPU Cooler: Zalman CNPS 9700 LED @ 2800 RPM
Voltage: 1.40

---ADDITIONAL INFORMATION---
CPU Stepping: CACAC AC 1004EPMW
BIOS Version: 2702 [2/26/2010]
Stability test application(s) used: Prime95 and OCCT
Amount of time passed in stability app: 6+ hours
Any other pertinent info: Unlocked successfully on stock voltage, completely stable after 12+ hours on Prime95. Currenty running OC'ed to 3.512 GHz @ 1.40v.

http://picasaweb.google.com/lh/photo/ZYPJ7BRAIxuPO1j_3jQStA?feat=directlink

Sorry if this is OT, but can someone explain why my vcore is all over the place? one reading is 1.43, another 1.46, and again 1.168? While running OCCT with asus probe, I get intermittent messages of the voltage on the Vcore and +5V of voltage too high. I have a PC Power and Cooling 420W psu, brand new. it safe to ignore this?

Also, the OCCT temp results for each core are 15C...flat. sorry for OT but hopefully someone can help me out, so new to OC'ing yet so exciting :)
 
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---MANDATORY INFORMATION---
Processor: Phenom II x2 555BE
Unlock pass or fail: Pass (4 core)
Motherboard: Asus M4A78T-E
CPU Cooler: Zalman CNPS 9700 LED @ 2800 RPM
Voltage: 1.40

---ADDITIONAL INFORMATION---
CPU Stepping: CACAC AC 1004EPMW
BIOS Version: 2702 [2/26/2010]
Stability test application(s) used: Prime95 and OCCT
Amount of time passed in stability app: 6+ hours
Any other pertinent info: Unlocked successfully on stock voltage, completely stable after 12+ hours on Prime95. Currenty running OC'ed to 3.512 GHz @ 1.40v.

http://picasaweb.google.com/lh/photo/ZYPJ7BRAIxuPO1j_3jQStA?feat=directlink

Sorry if this is OT, but can someone explain why my vcore is all over the place? one reading is 1.43, another 1.46, and again 1.168? While running OCCT with asus probe, I get intermittent messages of the voltage on the Vcore and +5V of voltage too high. I have a PC Power and Cooling 420W psu, brand new. it safe to ignore this?

Also, the OCCT temp results for each core are 15C...flat. sorry for OT but hopefully someone can help me out, so new to OC'ing yet so exciting :)

Please refer back to post #1. Either your power supply is not providing good power to the motherboard, or the motherboard is not providing good power to the CPU (because of inadequate voltage regulation or overheating of mosfets). The PSU may not be adequate. However, if it's stable, then who knows?

7. Make sure your motherboard has adequate voltage regulation.
Test this with OCCT. When it completes its run, look at the graphs for the variation in the voltage of the processor at full load. If it doesn't vary much, then you're good. But if it does, that's a sign of poor voltage regulation. Another sign is having a lot of vdroop. The higher the power phase on your mobo, the better. If in doubt, stick to name brand motherboards like Asus and Gigabyte. Look for 8-phase power designs, or higher. Also look for cooling on the mosfets. A lot of cheaper boards do not come with heatsinks on the mosfets. When mosfets overheat, they still "work" but provide unstable voltage to the CPU, causing instability (and even death). With a little 80W dual core, it's not an issue, but for your shiny new unlocked and overclocked quad-core monster, it will make a difference! Several options are available out there, but we recommend cheap, simple BGA heatsinks.

8. Make sure you have a quality power supply.
This may seem like a no-brainer, but bad power is bad power.
 
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---MANDATORY INFORMATION---
Processor: Phenom II X2 550 BE
Unlock pass or fail: Pass
Motherboard: Gigabyte GA-MA785GMT-UD2H
CPU Cooler: Corsair H50
Voltage: 1.375 V

---ADDITIONAL INFORMATION---
CPU Stepping: CACYC AC 0921APAW
BIOS Version: F5 (11/30/09)
Stability test application(s) used: Prime 95, Intel Burn Test, Boinc
Amount of time passed in stability app: 24 hrs on Prime95, 50 passes max stress IBT, 1+ week Boinc (Seti and QMC projects)
Any other pertinent info: The processor has been OC'd to 3.5 GHz at 1.375 V (temp gets to a max of ~50 C under IBT), NB at 2600 MHz, HT at 2400 MHz, CPU-NB voltage at 1.3 V
 
---MANDATORY INFORMATION---
Processor: Athlon X2 5000+
Unlock pass or fail: Pass
Motherboard: MSI 785GT-E63
CPU Cooler: Kingwin XT-1264
Voltage: Stock, reads as 1.32V

---ADDITIONAL INFORMATION---
CPU Stepping: CACVC CA 0932FPBW
BIOS Version: V28.2 12/31/2009
Stability test application(s) used: AMD Overdrive, OCCT, Prime95
Amount of time passed in stability app: Prime95 16 hours
Any other pertinent info: From ewiz.com mid-March

Currently overclocked to 3025mhz CPU, 2200mhz NB, 1925mhz HT, 275mhz fsb at stock voltages for everything (8 hours prime stable, 10 hours OCCT stable). Cool n quiet works perfectly fine, too.
 
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---MANDATORY INFORMATION---
Processor: Phenom II X2 555 BE
Unlock pass or fail: FAIL
Motherboard: Biostar TA785G3+
CPU Cooler: Thermaltake Volcano 12
Voltage: 1.425v

---ADDITIONAL INFORMATION---
BIOS Version: 88GCP112.BST
Any other pertinent info: System will post, but I can't boot into Windows in X3 or X4 modes (file checksum error).
 
Processor: Phenom II X2 550 BE
Unlock pass or fail: Pass 4 cores @3.615
Motherboard: Gigabyte GA-MA790FX-UD5P
CPU Cooler: Ninja Mini
Voltage: 1.45

---ADDITIONAL INFORMATION---
CPU Stepping:
BIOS Version:
Stability test application(s) used:Various DC projects
Amount of time passed in stability app:
 
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---MANDATORY INFORMATION---
Processor: X2 550BE
Unlock pass or fail: Pass
Motherboard: Asus M4A79XTD EVO / Asus M4A89GTD Pro/USB3
CPU Cooler: Corsair H50
Voltage: 1.4V - 1.45V

---ADDITIONAL INFORMATION---
CPU Stepping:
BIOS Version: 0901
Stability test application(s) used: Prime95
Amount of time passed in stability app: 5 Hours
Any other pertinent info: Will blue screen Windows 7 at least once in the morning, but will run Prime stable after "warming up" all day long at 3.4Ghz. Not sure what the issue is. Annoying though. CPU-Z sees it as a Phenom II X4 B50 Processor. Memtest shows errors, although it will occasionally boot and run fine passing Prime95.

Edit: I think the issue was a bad stick of memory, so I'm back in the Pass category for now.
 
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Processor: Phenom II X2 550
Unlock pass or fail: Pass - 4 cores
Motherboard: Asus M4A785TD-V EVO
CPU Cooler: Cooler Master Hyper 101
Voltage: Auto

---ADDITIONAL INFORMATION---
BIOS Version:605
Stability test application(s) used: SP 2004 & Prime 95
Amount of time passed in stability app: 4 hours
 
---MANDATORY INFORMATION---
Processor: Phenom II X2 555
Unlock pass or fail: Pass 3 cores, Fail 4 cores
Motherboard: Gigabyte GA-MA78LM-S2H
CPU Cooler: Stock cooler from a Phenom 9600BE
Voltage: Auto

---ADDITIONAL INFORMATION---
CPU Stepping: N/A
BIOS Version: F8
Stability test application(s) used: OCCT
Amount of time passed in stability app: 4 hours
Any other pertinent info: Will not boot into windows with core 2 enabled. So far completely stable with core 3 active.

Don't want to clutter up the thread with discussion so will just add additional notes here. Went up to 1.5V and Core 2 does not seem to work regardless of settings, instant blue screen shortly after the boot sequence starts. Most of the time it doesn't even bug check, just starts to display the blue screen then reboots. The cooler does suck, but its not a temp related issue. It is running at only a few C over ambient during and right after boot. The main post was right about the stock cooler for the 555 sucking, I took one look at it and tossed it aside. The 9600 cooler I had lying around at least was partially copper. Not really interested in investing a lot of money in this system, mostly was built with left over parts, just wanted to report my findings. Will post the batch settings after my next reboot, still running OCCT now.
 
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---MANDATORY INFORMATION---
Processor: Phenom II X2 555
Unlock pass or fail: Pass 3 cores, Fail 4 cores
Motherboard: Gigabyte GA-MA78LM-S2H
CPU Cooler: Stock cooler from a Phenom 9600BE
Voltage: Auto

---ADDITIONAL INFORMATION---
CPU Stepping: N/A
BIOS Version: F8
Stability test application(s) used: OCCT
Amount of time passed in stability app: 4 hours
Any other pertinent info: Will not boot into windows with core 2 enabled. So far completely stable with core 3 active.

Increase the voltage and see if that helps core 2. What batch did you get. Also, get a better cooler.
 
---MANDATORY INFORMATION---
Processor: Athlon X2 5000+ 45nm
Unlock pass or fail: Pass 4 cores
Motherboard: Gigabyte MA78LM-S2 rev 1.0
CPU Cooler: Stock 550 BE cooler
Voltage: default, cpu-z indicated 1.264v

---ADDITIONAL INFORMATION---
CPU Stepping: CACZC AC 0944BPMW
BIOS Version: F8 3/18/2010
Stability test application(s) used: prime95
Amount of time passed in stability app: 4h
Any other pertinent info:
 
---MANDATORY INFORMATION---
Processor: Phenom II 555BE
Unlock pass or fail: pass (all 4 cores)
Motherboard: Gigabyte GA-MA790FXT-UD5P
CPU Cooler: OCZ Vendetta 2
Voltage: 1.375 (Default)

---ADDITIONAL INFORMATION---
CPU Stepping: CACAC AC 1004CPMW (bought new off ebay)
BIOS Version: F7 (ACC setting: hybrid 0,-2,0,-2)
Stability test application(s) used: Prime 95 Blend
Amount of time passed in stability app: 24+ Hrs
Any other pertinent info: Pasted 10 Hrs Blend at same volts at stock speeds. For that I had these ACC settings: Hybrid 0,0,0,0
24HrBlend_3600stockvolts.jpg
 
Processor: Phenom II X2 555
Unlock pass or fail: FAIL 3 cores, Fail 4 cores
Motherboard: Asus M4A785TD-M EVO
CPU Cooler: Silverstontek NT-06 Evolution + 140mm fan
Voltage: Auto upto 1.5v

---ADDITIONAL INFORMATION---
CPU Stepping: CACAC AC 1004BPMW
BIOS Version: last 6 available from asus now on 2004 (x6 ready)

Phenom II X2 555BE 1004BPMW Failed to unlock to either 3 or 4 cores, tried 2 boards both hung at windows loading screen regardless of volts etc etc
 
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Processor: Athlon II 5000+
Unlock pass or fail: Fail
Motherboard: Gigabyte MA78LM-S2H
CPU Cooler: Artic Freezer 7 pro V2
Voltage: 1.3 up to 1.66v

---ADDITIONAL INFORMATION---
CPU Stepping: CACVC AC 0947EPMW
BIOS Version: F8 tried all the way down to F4
 
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