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Hidden core - Athlon II X3 450

post #1 of 53
Thread Starter 
EDIT: As of right now I'm making this thread's primary concern whether or not I can unlock my CPU's hidden core. Overclocking can wait until I know for sure or not whether I have a tri-core or a quad-core.



My monitoring/benchmark software: Easy Tune 6, CPU-Z, HWiNFO64, Core Temp, Speed Fan, and Prime 95.

To be perfectly honest, I know that there are minimal risks in unlocking an extra core and that's about it. I'm speculating, but I would assume that an unlocked core would result in a increased voltage and, in turn, higher temps. I've been told that if the unlock fails then I should turn down the HT (Hyper Threading, I do believe) Link Speed to 1600MHz in the BIOS. From this, I've also gathered that you're allowed more than one attempt at unlocking the extra core(s). The only thing I have to worry about is the stability of the core if I can even unlock it. Plus, wouldn't unlocking an extra core mean that I probably won't even have to overclock the CPU a lot?

* I am using my stock CPU heatsink. I keep the fan running at 100% and that appears to be 3308-3590rpm ever since I cleaned out my tower. My priority here is being able to safely push my CPU to a level where it increases performance, but doesn't sacrifice stability.
Edited by Metallica93 - 7/31/12 at 4:16am
    
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post #2 of 53
Thread Starter 
.
Edited by Metallica93 - 7/31/12 at 4:14am
    
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post #3 of 53
Have you tried unlocking the other core yet?
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post #4 of 53
Thread Starter 
Quote:
Originally Posted by PunkX 1 View Post

Have you tried unlocking the other core yet?

That's the thing. I don't know what steps I should follow in order to do so. Hell, for all I there could simply be an "On/Off" switch in the BIOS. Not to mention I have no idea what repercussions turning down the Hyper Threading Link Speed would do or if I could turn it back up once I did unlock the extra core.
    
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Athlon II X3 450 Gigabyte GA-990XA-UD3 AM3+ Sapphire Radeon HD 6770 Mushkin Enhanced Silverline (4GB x2) 
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post #5 of 53
Quote:
Originally Posted by Metallica93 View Post

That's the thing. I don't know what steps I should follow in order to do so. Hell, for all I there could simply be an "On/Off" switch in the BIOS. Not to mention I have no idea what repercussions turning down the Hyper Threading Link Speed would do or if I could turn it back up once I did unlock the extra core.

To unlock the core:

1. Go to the BIOS and enable ACC (advanced clock calibration). You should also have something called "unleashing mode". Enable that as well.

2. See if you can boot into windows at default voltages and run a few stress tests to ensure that the 4th core is stable and completely functional. You meet need to bump up the voltage a tad.

3. Hope that the core unlocks with L3 cache biggrin.gif

Remember that all X3s are based on a quad-core die.

AMD locked out the 4th core for one of two reasons:

1. The 4th core was unstable and instead of throwing the chip into the trash, AMD decided to sell it as a tri-core by locking out the defective core.

2. The 4th core was completely stable and functional but AMD decided to sell the chip as tri-core in order to meet demand.

The early batches of the Athlon X3s were based on the Phenom die and hence unlock (if stable) with the L3 cache..which means its a Deneb (Phenom) chip. If you don't get the L3, it means yours is based on the Propus (Athlon) X4 die. My 445 luckily unlocked into a stable Phenom with the L3.

Also keep in mind that if your chip is based on the Athlon-die, you'll need a higher voltage while overclocking.
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Ol' Faithful
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A pleasant surprise :)
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post #6 of 53
Thread Starter 
All I'm seeing is "CPU Unlock" with an "Enable/Disable" feature. Nothing outside of that. Do I just hit "Enable" and then run Prime 95? Seems a little... simple...
    
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Athlon II X3 450 Gigabyte GA-990XA-UD3 AM3+ Sapphire Radeon HD 6770 Mushkin Enhanced Silverline (4GB x2) 
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Athlon II X3 450 Gigabyte GA-990XA-UD3 AM3+ Sapphire Radeon HD 6770 Mushkin Enhanced Silverline (4GB x2) 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 7200rpm LG DVD +/- RW SuperMulti Drive 120mm front/rear fans + 180mm side fan Windows 7 Home Premium 64-bit 
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post #7 of 53
try enabling that option. then save the settings.

Wait for the computer to restart and look at what's written on the bios post message.
It should say phenom instead of Athlon X3.

When you get into windows, check that everything looks ok.
(I unlocked a sempron 145 but when it got to windows, the taskbar was discolored)

Then do a prime95 test for 30 minutes or an hour. Make sure you the temps dont exceed 60c if you have stock cooler
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post #8 of 53
Thread Starter 
Sorry, but the BIOS POST message? Everything appeared to pop up as usual. Was there something specific I was looking for?

Also, I hit "Enable" and Windows 7 wouldn't start up. Had to hit the Reset button on my tower. Even tried keeping "CPU Unlock" on "Enable" and only disabling the 4th core, but that didn't do anything, either.

The only options I can think of are messing with voltages or turning things on/off in the BIOS, updating the BIOS (perhaps something in an update would help, who knows), or I just flat-out can't unlock the 4th core.

Anyone else baffled why there only seems to be a "CPU Unlock" option in the first place?


EDIT: Original post updated.
Edited by Metallica93 - 7/31/12 at 4:16am
    
CPUMotherboardGraphicsRAM
Athlon II X3 450 Gigabyte GA-990XA-UD3 AM3+ Sapphire Radeon HD 6770 Mushkin Enhanced Silverline (4GB x2) 
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Seagate Barracuda 7200rpm LG DVD +/- RW SuperMulti Drive 120mm front/rear fans + 180mm side fan Windows 7 Home Premium 64-bit 
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Hanns-G HZ201DPB 20" Widescreen Lite-On PS/2 Wired Standard Corsair Builder Series CX600 Raidmax Blackstorm  
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CPUMotherboardGraphicsRAM
Athlon II X3 450 Gigabyte GA-990XA-UD3 AM3+ Sapphire Radeon HD 6770 Mushkin Enhanced Silverline (4GB x2) 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 7200rpm LG DVD +/- RW SuperMulti Drive 120mm front/rear fans + 180mm side fan Windows 7 Home Premium 64-bit 
MonitorKeyboardPowerCase
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post #9 of 53
Some motherboards only have a single option to unlock CPU cores. If it you aren't able to boot into windows after unlocking the core, try going into into the BIOS and upping the vcore a tad. If that doesn't work, then you most likely have a defective 4th core.
Ol' Faithful
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A pleasant surprise :)
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Ol' Faithful
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A pleasant surprise :)
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post #10 of 53
If i'm not mistaken there was a way of checking if your chip was a deneb one or an athlon. That requires you to look on the chip for a code. Every chip has it's own number. The deneb x3's i think have certain digits before or after the chip code. The guys who have an x3 unlocked into an x4 would be able to tell you what number you should be looking for. Hope this helps.thumb.gif
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