So here are my specs first:
AMD Athlon II X3 445 Rana 3.1GHz Socket AM3 95W Triple-Core Desktop Processor
RAIDMAX HYBRID 2 RX-630SS 630W ATX12V V2.2/ EPS12V SLI Ready CrossFire Ready Modular Modular LED Power Supply
EVGA 01G-P3-N959-TR GeForce 9500 GT 1GB 128-bit DDR2 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card
BIOSTAR A770E3 AM3 AMD 770 ATX AMD Motherboard
Kingston 2GB (2 x 1GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) Dual Channel Kit Desktop Memory Model KVR1333D3K2/2GR
Ok so i had a computer with windows XP 32 bit on it and I got windows 7 64 bit and deleted XP and installed Windows 7 successfully on a 32 bit processor. Before I thought it was a 64 bit processor that's why i installed 64 bit windows 7. So i was using windows 7 and installed all my drivers and everything and i restarted my computer because some drivers needed the computer to be restarted. so when the computer was booting back up I pressed F4 to see if i can unlock the 4th core of my processor but it said biounlocking failed so it got to the windows 7 loading screen and after that i got the blue screen of death. I thought it was my hard drive so i formatted it and i tried to install windows 7 again and i got the blue screen of death again. So then after that didn't work i tried to install Windows XP (32 bit) back on it and i got the bsod again. so to check if it was the hard drive i took an old working computer took out its hard drive and replaced it with the one that had windows 7 on but is now formatted. i installed windows XP and it worked. so then i put the hard drive with windows XP installed and working on it back in the newer computer, turned the computer on didnt press any keys for core unlocking and it worked. But i checked my processor in control panel/system and it said i had a Phenom II X4 B45 Processor. So im guessing my processor was unlocked but i didnt press anything to unlock it. I checked online to see if Phenom II processors were 64 bit and i read somewhere that all Phenom and Phenom II processors are 64 bit. So if my motherboard unlocked my processor w/o me pressing any keys i thought maybe when i boot up my computer to install windows 7 64 bit my motherboard had unlocked my athlon II to a Phenom II and that is why I am thinking windows 7 installed successfully. but my computer doesnt always successfully unlock my processor and when its not unlocked i get the bsod. Is my processor broken or why is this happening?|||Lets start with the easy part. Your processor can run either 64 or 32 bit Windows. All dual core (or higher) processors support 64-bit instructions.
You have unlocked the 4th core of that cpu, and may have also unlocked the L3 cache (which is the difference between a Phenom II and an Athlon II). There is absolutely no guarantee that the unlocked core will be stable - there's a reason they locked it, after all. Sometimes adding more voltage to the cpu helps stability, but even that's not guaranteed.
AMD core unlocking is done in the BIOS. Once you've configured the BIOS to unlock the core, it will remain unlocked until you change the BIOS back. Whether your do so is up to you (and how many BSODs you can stomach).|||The issue is not your 64 bit edition of windows, it's because you've tried to unlock a tricore into a quadcore. in rare cases this can actually kill the processor (which you may have done), my advice would be to disable that 4th core, and run it the way it was supposed to.|||Simple question. Here's your answer.
First, your CPU is 64-bit. If it weren't, 64-bit Windows wouldn't install. So your problem isn't caused because the Windows 7 operating system is 64-bit -- at least not directly (read on).
Second, Windows 7 handles the cores it finds, so there's nothing to turn on. If you're trying to turn on an additional core, remember that your CPU was sold as a three-core because the silicone was flawed or at least not-to-specifications for the fourth core. A lock-up is to be expected at full speed.
Third, your CPU might indeed have a stability problem when in 64-bit mode, that shows up in 64-bit Windows 7. You can test further by booting a 64-bit Live Linux CD [*] to see if that will run. Always try booting Linux when your machine acts weird, because Linux is ALWAYS stable. It allowed me to diagnose my CPU/Windows 7 stability problem as being not there with Linux -- and which was subsequently silently updated by Microsoft. I suspect that your CPU needs its frequency reduced a little so it will be more stable for Windows 7 -- perhaps even with that fourth core running. After current Windows Updates, it might run faster.
Using 4 cores on Linux with an AMD here -- and finally got Windows 7 to run at full speed after some really bad crashes -- one that took out the hard drive formatting. Back on Linux now, because Windows 7 is slower.
Good luck!
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[*] 64-bit Linux ISO download from http://www.linuxmint.com/download.php
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