Does your PC have overclock potential? Our new AMD PhenomTM II processors certainly do, and to showcase this I ventured over to our super secret lab buried deep inside the bowels of our Austin campus to prove the point!
Picture long hallways of unmarked doors, the hum of machinery, people milling about eyeing you up and down, wondering who you are and why you’re there. Now imagine a dream job for an enthusiast, one where you have almost limitless access to silicon, hardware and time to hone your craft. This is the life of Pete Hardman, one of AMD’s in-house overclocking gurus!
Pete comes into work every day, passes through the “MI6″ type security barriers, enters his lab and proceeds to break records the world may never ever know about (at least that’s what he tells us)! All in a day’s work I say!
You may have seen some of the insane things we’ve done with Dragon platform technology and liquid helium, both at CES and with our friends in Finland. But for this blog we’re going to keep it simple and break down a ‘tried and true’ method for getting more performance out of your AMD Phenom II processor.
Pete and I took the new AMD Phenom II X4 955 Black Edition processor and walked it through a proper overclocking methodology using AMD OverDriveTM software*. Here are the steps we went through in detail:
Overclocking 101
Step 1 – Figure out your goals, small increase or one shot big gain? Power efficiency, is it important? Going for a full system max overclcok? Find the limits?
Step 2 – Procure the right hardware and software.
Our test system:
AMD Phenom II X4 955 Black Edition quad-core processor
ASUS M4879T Deluxe DDR3 Motherboard
4G Corsair DDR3 Memory
ATI RadeonTM HD4870 X2 GPU
Thermalrite Ultra 120 Extreme “TRUE”
2 – 120mm high volume fans
Software add-ons:
AMD OverDrive software
Maxon Cinebench benchmark R10
3DMark® 05 benchmark
CPU-Z
Step 3 – Prep system – thermal paste the CPU, mount your air cooling solution as per guidelines. Keep the thermal paste to a nice thin amount; this will be beneficial once the heatsink is applied and pressure is added.
Step 4 – Power on system and boot to the OS – Install AMD OverDrive software*
Step 5 – Change frequency; make small incremental changes to the systems multiplier.
Once you have made your frequency multiplier changes, run a benchmark like Cinebench or 3DMark® to check for stability. Adjust frequency using stock voltage first before increasing voltage.
Step 6 – Increase multiplier and redo step 5 until the benchmark does not complete.
Step 7 – Once you have established the ‘ceiling’ in terms of frequency at stock voltage, do a cold reset/reboot.
Step 8 – Now increase voltage; this should also be done incrementally. You need to know how the voltage scales with frequency. As you increase voltage, frequency should increase, but there is a limit where too much voltage will start to reduce frequency; this is the “Sweet Spot” – find it!
Step 9 – Make a small 50mv increase, now retry the benchmark at the same frequency you previously failed at.
Step 10 – Continue to increase frequency at the new voltage until you find a fail case (meaning your computer hangs or blue screens).
Step 11 – Once you have a fail case at the new frequency, increase the voltage another 50mv and redo Step 10
Step 12 – Once you have established a threshold on voltage and frequency, we now move to the Northbridge and we make those changes via BIOS
Step 13 – Restart and enter BIOS
Step 14 – Click on CPU/NB Frequency and make an increase; we went from 2G to 2.4G which is a large jump and ended up at 2.8Ghz.
Step 15 – Continue to make incremental increases until you have a fail.
Step 16 – Take the results from steps 5, 8 and 12 and put them all together into a total system overclock. CPU cores, Voltage and North Bridge frequency all overclocked to establish a high performing PC experience
Overclocking can be a lot of fun; I personally like to do a moderate overclock and leave my system at that performance level. Pete, on the other hand, is pushing the boundaries of silicon every day. Chances are you are wondering what frequency we ended at, well, the results may vary, and what Pete and I achieved may not be representative of what everyone can do. With that caveat clearly stated, our final frequency was 4.2G on air without overclocking the memory. Not bad considering we did not spend a lot of time tweaking, we simply followed the steps above that delivered a good 1 Ghz OC.
*And remember kids, AMD’s product warranty does not cover damage caused by overclocking, even when enabled via AMD OverDriveTM software.
Ian “Cabrtosr” McNaughton
Picture long hallways of unmarked doors, the hum of machinery, people milling about eyeing you up and down, wondering who you are and why you’re there. Now imagine a dream job for an enthusiast, one where you have almost limitless access to silicon, hardware and time to hone your craft. This is the life of Pete Hardman, one of AMD’s in-house overclocking gurus!
Pete comes into work every day, passes through the “MI6″ type security barriers, enters his lab and proceeds to break records the world may never ever know about (at least that’s what he tells us)! All in a day’s work I say!
You may have seen some of the insane things we’ve done with Dragon platform technology and liquid helium, both at CES and with our friends in Finland. But for this blog we’re going to keep it simple and break down a ‘tried and true’ method for getting more performance out of your AMD Phenom II processor.
Check out his classy nameplate
Pete's work desk - a little unorthodox to say the least
Pete and I took the new AMD Phenom II X4 955 Black Edition processor and walked it through a proper overclocking methodology using AMD OverDriveTM software*. Here are the steps we went through in detail:
Overclocking 101
Step 1 – Figure out your goals, small increase or one shot big gain? Power efficiency, is it important? Going for a full system max overclcok? Find the limits?
Step 2 – Procure the right hardware and software.
Our test system:
AMD Phenom II X4 955 Black Edition quad-core processor
ASUS M4879T Deluxe DDR3 Motherboard
4G Corsair DDR3 Memory
ATI RadeonTM HD4870 X2 GPU
Thermalrite Ultra 120 Extreme “TRUE”
2 – 120mm high volume fans
Software add-ons:
AMD OverDrive software
Maxon Cinebench benchmark R10
3DMark® 05 benchmark
CPU-Z
Step 3 – Prep system – thermal paste the CPU, mount your air cooling solution as per guidelines. Keep the thermal paste to a nice thin amount; this will be beneficial once the heatsink is applied and pressure is added.
Step 4 – Power on system and boot to the OS – Install AMD OverDrive software*
Step 5 – Change frequency; make small incremental changes to the systems multiplier.
Once you have made your frequency multiplier changes, run a benchmark like Cinebench or 3DMark® to check for stability. Adjust frequency using stock voltage first before increasing voltage.
Step 6 – Increase multiplier and redo step 5 until the benchmark does not complete.
Step 7 – Once you have established the ‘ceiling’ in terms of frequency at stock voltage, do a cold reset/reboot.
Step 8 – Now increase voltage; this should also be done incrementally. You need to know how the voltage scales with frequency. As you increase voltage, frequency should increase, but there is a limit where too much voltage will start to reduce frequency; this is the “Sweet Spot” – find it!
Step 9 – Make a small 50mv increase, now retry the benchmark at the same frequency you previously failed at.
Step 10 – Continue to increase frequency at the new voltage until you find a fail case (meaning your computer hangs or blue screens).
Step 11 – Once you have a fail case at the new frequency, increase the voltage another 50mv and redo Step 10
Step 12 – Once you have established a threshold on voltage and frequency, we now move to the Northbridge and we make those changes via BIOS
Step 13 – Restart and enter BIOS
Step 14 – Click on CPU/NB Frequency and make an increase; we went from 2G to 2.4G which is a large jump and ended up at 2.8Ghz.
Step 15 – Continue to make incremental increases until you have a fail.
Step 16 – Take the results from steps 5, 8 and 12 and put them all together into a total system overclock. CPU cores, Voltage and North Bridge frequency all overclocked to establish a high performing PC experience
Overclocking can be a lot of fun; I personally like to do a moderate overclock and leave my system at that performance level. Pete, on the other hand, is pushing the boundaries of silicon every day. Chances are you are wondering what frequency we ended at, well, the results may vary, and what Pete and I achieved may not be representative of what everyone can do. With that caveat clearly stated, our final frequency was 4.2G on air without overclocking the memory. Not bad considering we did not spend a lot of time tweaking, we simply followed the steps above that delivered a good 1 Ghz OC.
*And remember kids, AMD’s product warranty does not cover damage caused by overclocking, even when enabled via AMD OverDriveTM software.
Ian “Cabrtosr” McNaughton
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