Safe voltage settings for Amd Phenom II X4 945
Safe voltage settings for Amd Phenom II X4 945
I think I found the solution. My motherboard transmits various voltage readings to programs like hwid and cpuz. Yet, in my bios, after adjusting the voltage on my CPU and restarting, I see the same readings again. I’m confused about why they stay consistent once I enter desktop mode. I have ample power and everything seems fine. Still, I’m struggling with getting the cores to run higher than 51C @3.4 during AMD overdrive stability tests at a CPU voltage of 1.375.
there shouldn't be any need to overclock this CPU. it's actually a quad-core processor with two cores disabled. usually, one of the four cores fails, so they disable two to (A) compensate for the single core issue and (B) meet the dual-core requirements. check out Unleashing for the AMD 945, 950, or 955—those cores can be unlocked to let your computer utilize all four cores. in my case, the fourth core was faulty, but I managed to get another 3,000 boosts.
p.s. your welcome
It's a full-time quad with the same CPU, currently running at 3.705ghz and a 1.376 vcore. You'll need to upgrade your heatsink to handle the heat under maximum load. My setup uses a Zalman 9700, but I don't recommend it as there are better options available. You can improve performance by using an FSB on 247 and adjusting my Vcore. Avoid overdrive; stick to your BIOS settings. I've experienced temps above 50°C with this chip, but it's a good overclocker if you're willing to experiment.
cool and quiet mode activated with all power-saving features turned off. I achieved a stable performance of 3.85 at the current temperature of 50°C using the Zalman 9900 and Coolermaster Storm Sniper case. The FSB is 254, voltage is 1.506V, heat sink is 2270, both fans are running at 2270 RPM, and RAM is set to 7-7-7-20-30-1T with 1.53V and 1350 speed. To reach over 250 stability, I had to increase the stability voltages, but temperatures didn’t rise noticeably. On my ASUS M4A77TD board, I couldn’t exceed 3.75.
I'm testing the same CPU right now. I have an ASUS board with the latest BIOS, 2x2 RIPJOWS RAM and a Zalman 9900 cooler. I'm running at 3.6 with overvoltage set to 1.46. Temperatures stay below 40, whereas with the stock heatsink they reached around 59°C. An aftermarket cooler would make a big difference! My FSB is 240, HDD/SSD is 2160, downclocked RAM to 1280 timings at 9-9-9-24 (may vary with different memory types), and voltage set to 1.5. It's stable on Prime95. Hope this helps! Oh CPuz mentioned my rig is at 1.41, Everest says 1.44. Thanks for the info – it really helped.
I’m testing the same CPU on an ASUS board that comes with the latest BIOS. It has a 2x2 RipJaws RAM and a Zalman 9900 cooler. I’m running at 3.6 GHz with overvoltage set to 1.46. Temperatures stay below 40°C, whereas with the original heatsink they reached around 59°C. An aftermarket cooler would make a big difference. My FSB is 240, HDD/SSD count is 2160, and I’ve downclocked the RAM to 1280 timings at 9-9-9-24 (may vary with different memory types). Memory voltage is set to 1.5. It’s stable according to Prime95. Hope this helps! Oh cpuz mentioned my rig is at 1.41, Everest says 1.44.
I’m currently trying the same CPU on an ASUS M4A785-M. After one hour of AMD Overdrive stress test, it passed, but only 45 minutes in Prime95. I ran Memtest twice on lowered RAM settings and it passed. Prime95 failed after 45 minutes again. I’m stuck—what’s wrong?
Details:
- CPU: 3.6 GHz
- FSB: 240
- Multiplier: x15
- Voltage: 1.45
- NB: 1.25
- HT: x10, 2400 MHz
- RAM: DDR@ PC6400 800 MHz (downclocked to 333 at 400 MHz)
- Voltage: 1.95
Previous screenshot before adjusting RAM speed to 333.
The system is attempting to use the same CPU on an ASUS M4A785-M. It completed an AMD Overdrive stress test for an hour, but only finished Prime95 in half an hour. After two hours of testing with reduced RAM settings, it passed. When Prime95 restarts, it fails after 45 minutes. I’m unsure what’s going wrong.
I am testing the same configuration and voltages, maintaining full usage for an hour, and reaching maximum temperatures of up to 41 degrees. Even at 3.8ghz operation, which is slightly unstable, temperatures are still spiking to 44 degrees. Anyone experiencing heat problems likely has issues with the CPU cooler and fan performance or poor airflow, possibly requiring adjustments to fan direction or placement. This situation seems mostly a matter of trial and error regarding airflow. With five case fans plus the CPU fan, my average temperature is around 45 degrees, including the GPU at 50 degrees minimum. If you see abnormal readings, fixing the intake and exhaust is crucial—just as important as investing in premium coolers. Unless you switch to water cooling, strong airflow in the case remains essential.
I have a question regarding this processor.
I ran it at 3.3 ghz and after a few days, while playing BF4, I noticed a burning smell. I opened the case and reduced the CPU frequency by 150 MHz. After two weeks, I haven’t detected any such smell.
I tried again but don’t have the tools to increase the clock speed further. Right now, the display shows the current clocking level. Are there any recommendations on what to monitor?
I have stock cooling and a single vent on the case that brings outside air to the CPU.
In the game, the CPU temperature never went above 62 degrees Celsius.