**OFFICIAL** Dell XPS M1730 Owner's Lounge, *Part 4*

[unclewebb]

wah47: You basically described how Intel designed Intel Dynamic Acceleration (IDA) mode to work. When one core goes to sleep, the other core automatically overclocks the multiplier up to 13. When both cores are awake, they both use the 12 multiplier. This is going on hundreds of times a second. ThrottleStop reports a very accurate average of this using high performance timers within the CPU.

The beauty of ThrottleStop is that if your bios lets you disable EIST, you can usually use ThrottleStop to lock both cores at the 13 IDA multiplier even if both cores are active at the same time. somebody over at TechPowerUp taught me this trick so I just wrote some simple software to make it easy for users to access this.

If this is working for you now, try reducing the core voltage. You will need to enable EIST before you reduce the VID voltage and then either disable EIST manually or use ThrottleStop to lock both cores into Dual IDA again. After that, test full load stability with Prime95 or something similar to give your CPU a good work out. With some luck and a decent CPU, you should be able to run the 13 multy with a VID setting somewhere around 1.10 volts. That will improve your full load temps compared to 1.375 volts.

[wah47]

wah47: You basically described how Intel designed Intel Dynamic Acceleration (IDA) mode to work. When one core goes to sleep, the other core automatically overclocks the multiplier up to 13. When both cores are awake, they both use the 12 multiplier. This is going on hundreds of times a second. ThrottleStop reports a very accurate average of this using high performance timers within the CPU.

The beauty of ThrottleStop is that if your bios lets you disable EIST, you can usually use ThrottleStop to lock both cores at the 13 IDA multiplier even if both cores are active at the same time. somebody over at TechPowerUp taught me this trick so I just wrote some simple software to make it easy for users to access this.

If this is working for you now, try reducing the core voltage. You will need to enable EIST before you reduce the VID voltage and then either disable EIST manually or use ThrottleStop to lock both cores into Dual IDA again. After that, test full load stability with Prime95 or something similar to give your CPU a good work out. With some luck and a decent CPU, you should be able to run the 13 multy with a VID setting somewhere around 1.10 volts. That will improve your full load temps compared to 1.375 volts.

Thanks I'll give it a try.Now the max temp is 66C with 1.375.

[Consi Pit]

A single HD 5870 can beat 8800m/9800m GTX SLI.

In these games where is a good SLI support - a single 5870 will lose with 8800gtxsli imho .

[wah47]

In these games where is a good SLI support - a single 5870 will lose with 8800gtxsli imho .

Check it out.

ATI Mobility Radeon HD 5870 - Notebookcheck.net Tech

NVIDIA GeForce 8800M GTX SLI - Notebookcheck.net Tech

[Consi Pit]

Yes I know it well , but i believe you know that synthetic tests is not all. SLI with a good profile can give 40-80% extra fps in games . And then a single 5870 has no chance.

[wah47]

@Consi Pit
Yeh, but honestly overall HD 5870 wins.Also, you'll not have any SLI issues and no need to mess with SLI profiles

@Unclewebb
Now I understood this all.Basically, T8300 isn't overclockable and has a locked multiplier.But because of the behaviour of IDA we can get extra 200Mhz by this trick.It's difference from normal overclocking.(e.g: overclocking X9000)
So I'm running it with these.
Volts: 1.1125 Multiplier: 13x199
It's working fine

But after each reboot, multiplier returns back to 6.0.I have to start the TS again to bring it back.

[vinoob]

guys where can i download the key board driver for my dell XPS M1730 running windows 7 ultimate 64BIT..as my keyboard back-light is not working

[Metalman]

guys where can i download the key board driver for my dell XPS M1730 running windows 7 ultimate 64BIT..as my keyboard back-light is not working

You do not need a driver for the lights. Try your Fn+right arrow key combination.

[Kade Storm]

Wah47,

As someone who has both setups, I can say without a doubt that the single 5870m does have some solid advantages, but raw full-resolution edge still goes to the dual 9800m GPU configuration.

With a small overclock, I had Crysis benching at just about 28 fps on very high. A single 5870 makes it to a nice 20 after generous overclocking in my experience.

In your own links, if you look at those detailed benchmarks of actual demanding games like Metro 2033 and Crysis, the idea becomes more apparent.

Although to be fair, this is much more complex than just one being better than the other.

[wah47]

@Kade Storm
Agreed, However in Metro 2033 AMD/ATI cards show considerable better performance.In short, The comparison of these cards is very game dependent.

@Consi Pit
You wanted to see the performance of overclocked T8300.
It's about 7-10% faster in CPU benchmarking softwares.

In games, only CPU dependent games may have better performance with it.
Far Cry 2
Medium@1024x768
Built-in Benchmark "Small Ranch"
Stock: 35fps
OC: 37fps
Just Cause 2
Nearly High@1280x800
Built-in Benchmark "Desert Sunrise"
Stock: 26fps
OC: 26fps

Little improvement