techPowerUp! Forums - View Single Post - Upgraded the CPU from core 2 duo T5250 to T9300 but the cpuZ & WEI scores went down

unclewebb · Nov 24, 2012, 03:41 PM

For Core 2 mobile processors to work correctly, you need to have EIST - SpeedStep enabled in the bios.

If your bios does not recognize your CPU, it will usually set it to the default multiplier which is 6. With SLFM - Super Low Frequency Mode enabled, you get an 8 multiplier but the bus speed gets dropped in half internally. CPU-Z reports this as equivalent to a multiplier of 4.

You should be able to use ThrottleStop to increase the multiplier. It writes multiplier information directly to the CPU so if the bios doesn't know anything about your CPU, it doesn't matter. As long as you can boot up, ThrottleStop can take over and help out.

ThrottleStop 5.00
http://www.techinferno.com/downloads/

To use it, put a check mark in the Set Multiplier box and set the VID voltage as high as possible and then set the multiplier as high as possible. Push the Turn On button and away you go. You can run a single thread of the built in TS Bench test to make sure your multiplier is increasing when under load. Also make sure you are using the Windows high performance profile. This is explained in the ThrottleStop docs.

Post some screen shots when you are done and let us know what your new WEI score is.

stinger608: Good call. It looks like it is working but this CPU will never run at its full speed because of the reduced front side bus speed. If he can get the multiplier higher, at least it won't be quite as sluggish.

Also download the latest version of CPU-Z 1.62. The maximum Intel Dynamic Acceleration (IDA) multiplier for a T9300 is 13.5 when a single core is active. CPU-Z showing 16 looks like a bug. For accurate results when using ThrottleStop, turn off CPU-Z. Some of the older versions of CPU-Z like 1.61.x were using the same system monitoring timers which could interfere with ThrottleStop's results.

Nov 24, 2012, 03:41 PM	#10
unclewebb RealTemp Author Join Date: Jun 2008 Posts: 903 (0.50/day) Thanks: 15 Thanked 394 Times in 271 Posts	For Core 2 mobile processors to work correctly, you need to have EIST - SpeedStep enabled in the bios. If your bios does not recognize your CPU, it will usually set it to the default multiplier which is 6. With SLFM - Super Low Frequency Mode enabled, you get an 8 multiplier but the bus speed gets dropped in half internally. CPU-Z reports this as equivalent to a multiplier of 4. You should be able to use ThrottleStop to increase the multiplier. It writes multiplier information directly to the CPU so if the bios doesn't know anything about your CPU, it doesn't matter. As long as you can boot up, ThrottleStop can take over and help out. ThrottleStop 5.00 http://www.techinferno.com/downloads/ To use it, put a check mark in the Set Multiplier box and set the VID voltage as high as possible and then set the multiplier as high as possible. Push the Turn On button and away you go. You can run a single thread of the built in TS Bench test to make sure your multiplier is increasing when under load. Also make sure you are using the Windows high performance profile. This is explained in the ThrottleStop docs. Post some screen shots when you are done and let us know what your new WEI score is. stinger608: Good call. It looks like it is working but this CPU will never run at its full speed because of the reduced front side bus speed. If he can get the multiplier higher, at least it won't be quite as sluggish. Also download the latest version of CPU-Z 1.62. The maximum Intel Dynamic Acceleration (IDA) multiplier for a T9300 is 13.5 when a single core is active. CPU-Z showing 16 looks like a bug. For accurate results when using ThrottleStop, turn off CPU-Z. Some of the older versions of CPU-Z like 1.61.x were using the same system monitoring timers which could interfere with ThrottleStop's results. Last edited by unclewebb; Nov 24, 2012 at 03:54 PM.