Four cores have reduced power levels
Four cores have reduced power levels
Hello, After verifying with tests, I’m certain two of my four cores are consistently running at 1995Mhz. This occurs regardless of how intense the workload is—whether I’m running heavy applications, using OBS Studio with HDMI input, or encoding with Quadro K600. As shown in the attached images, during peak usage, cores #2 and #3 operate at 1995Mhz, with their voltages dropping to 1.1V instead of the expected 1.3V. I’m really looking for guidance to unlock the full performance potential of this CPU. Details on my system: the PC is an Optiplex 760 (Desktop form factor), powered by a PSU likely around 225W, though calculators suggest about 180W consumption. The motherboard is a DELL 0D517D (LGA775, FSB at 333Mhz). The BIOS is A00, released on 09/26/2008. The CPU is an Intel Q9550 @2.83GHz (LGA775, FSB 1333Mhz, 1.3V, supports up to 5.2GHz). RAM is 4GB DDR2 @400Mhz (two 1GB modules plus one 2GB). The GPU is a Quadro K600, running Windows 10. Power management settings are in full mode with no power-saving features enabled. In Windows, the custom profile is set to full power, and I haven’t adjusted any parameters such as FSB speed or multiplier. Everything seems to be in the original configuration.
DiegoLeCreep
03-13-2016, 09:54 PM #2Information about upgrading CPUs in Optiplex 760s indicates Dell did not provide support for quad-core processors, likely due to VRM limitations. Refer to the source for more details.
jeppespeedway
03-18-2016, 06:25 PM #3It functions, though it isn't fully backed up. It would help to have a confirmation from someone, since I noticed Linus demonstrating an upgrade on Optiplex 760 and he added a quad-core if that's correct.
xXAguaMarineXx
03-18-2016, 06:38 PM #4The two videos I recall were using an Optiplex 9010 or an Optiplex 380.
MageOfGaming
03-29-2016, 04:57 PM #6I saw that video and it showed a 380 at 12:05. I believe unlocking the Q9550 at full power might push it past the 333 FBS limit, which could help. If the motherboard's FSB reaches 400 despite issues, it might improve performance. I'm unsure about the VRM problem but think it could be overcome. I'll try BSEL later and will keep you updated. Any suggestions would be appreciated, though I might need a more LGA775-compatible board if things don't work.
The Core 2 Quad CPUs consist of two individual Core 2 Duo processors positioned next to each other under the heat spreader. You may notice that some cores operate at varying speeds compared to others, especially if the BIOS isn't configured properly. Have you experimented with ThrottleStop? https://www.techpowerup.com/download/tec...ottlestop/ This tool once offered a way to manage this issue. Adjust the Set Multiplier to its maximum, configure the VID voltage at its highest level, and activate ThrottleStop to attempt a resolution. Share a screenshot of ThrottleStop during CPU loading if assistance is required. Ensure SpeedStep is enabled in the BIOS, as it allows all four cores to reach their full potential speed.
. I'll share an updated message once testing is complete. Typically, we need to turn it off for full performance, but I'm willing to give it a shot.
Nixelord03
03-30-2016, 05:37 AM #8No, I'm going to attempt this right now . I'll share an updated message once testing is complete. Typically, we need to turn it off for full performance, but I'm willing to give it a shot.
OctoberKnight
04-13-2016, 10:23 AM #9SpeedStep is always useful. The Windows power setting decides if your processor operates at maximum capacity. Many people who don’t grasp its function suggest turning it off, but that’s not the case.
I encountered an issue where tabs would freeze in Chrome, and turning off SpeedStep resolved it completely. Since then, I've noticed that using SpeedStep can hinder the clock's maximum speed for certain apps. I tend to keep my CPU running at full capacity, but I'm willing to try enabling it anyway.