Overclocking and undervolting

[chimera]

Hello,

Since I am new here I would like to say that this forum has many helpful threads and would like to congratulate administrators that keep it this way (and of course to all who help in providing the solutions to our problems).

I tried to post this in the similar thread, but couldn't since the last reply was too old...

My system specifications:
Toshiba A200-23Q
Core 2 Duo T5550@1.83 GHz
ATI HD2600 DDR2 Mobility Radeon 512VRAM
3GB DDR2 667 MHz

I would like to know a couple of things:

1. Will undervolting my CPU help me overclock GPU better?

2. I have 2 partitions, both with Windows XP - if i undervolt in one OS, will it be the same in the other OS?

3. I overclocked my graphics card from 500/400 to 578/504. After that it becomes unstable. I saw some posts, describing higher frequencies - is there any way I can increase this further?

4. Is it better to higer overclock the Core or the Memory module (GPU)?

I did some overclocking on my PC, but not much, so I consider myself a complete noob...

Thanks for your help...

 

[chimera]

I undervolted my CPU where 11x multiplier is 0.9875V, used Orthos CPU stress test for an hour and everything was ok. I will try even longer.

I overclocked my HD2600 from 500/400 to 769/495 and used ATItool artifact scanning and also everything looked ok.

I woul really like to hear some opinions, since i know little of this stuff (although i have read a lot of threads regarding this on the web) - what I mean is that i don't have a lot of experience doing this, and would really appreciate any help...

thank you, best regards

 

[chimera]

For undervolting i used RMCPU utility and I noticed when I set voltage to minimum of 0.95 V, the actual voltage is 1.063 V (this is the value shown in everest ultimate edition and in cpu-z).

GPU overclock seems stable, been running artifact scanning for 30 minutes and my temperatures don't go above 60°C (for the core of GPU) and there is no distortion.

I succesfully ran 3DMark06 and got 4111 marks (1280x800) @ 769/495
The 3DMark06 score with stock GPU speed @ 500/400 is 3192.

 

[Skywalker12345]

undervolting your cpu will not effect anything but the cpu, and yes it will be the same voltage if you set it in the bios in both os's.

The higher the voltage for the componet the higher you can overclock it.

so if you increase your cpu voltage then you should be able to increase the fsb more depending on how much voltage.

good overclock on the gpu tho!

Ps- overclocking both core and memory is good for your gpu performance

 

[r9]

To me Overclocking and Undervolting don`t fit in the same sentence.

 

[Skywalker12345]

To me Overclocking and Undervolting don`t fit in the same sentence.

haa very true

 

[chimera]

Thank you for your answers.

I was under the impression if you overclock the GPU, the temperature rises. With undervolting CPU the internal overall temperature of the laptop drops, doesn't it?Especially if the GPU and CPU have the same heatsink?

regards