Precision M4500 Owner's Lounge

What sort of benefits do you get from overclocking the FX1800M?

Any FPS comparisons? I don't really play games much but when I do I wouldn't mind a few extra horses.

What sorts of temps do you need to aim to keep things under?

 

I am not the expert here but followed the instructions that are listed. That program I mentioned is the key. I mostly did it as a learning exercise. Most of my programming is in Linux where I do development for flight simulation that run on real Dell workstations. I port the programs over from the M-series when they run.

I cranked the speed up about 10% and saw no change in temps. I use Real Temp GT which puts the temps in your system tray where you can follow them. I would get a good baseline and then crank it up and see what happens. As you say, this is probably only of real interest for gamers and video editors.

 

I had some success this weekend in overclocking the M4500

Did some benchmarking using SISandra Processor Arithmetic Benchmark and Stress testing with Prime95

Baseline on the M4500
Aggregate Arithmetic Performance - 27.7GOPS
Dhrystone iSSE4.2 - 33.59GIPS
Whetston iSSE3 - 22.83GFLOPS

Did some tweaking with ThrottleStop 2.99 with the following settings:

Clock Modulation is ON with 100%
Chipset Clock MOD is OFF
Set Multiplier is ON with Turbo

The following are OFF
Power Saver
Disable Turbo
BD PORCHOT
SLFM
More Data

The following are on
Log File
EIST
C1E

In TRL the following settings are used for Maximum Turbo Ratio Limits
1 Core Active - 29
2 Cores Active - 29
3 Cores Active - 24
4 Cores Active - 24

In TPL the following settings are used for Maximum Turbo Power Limits
Profile 1
TDP (W) - 1000
TDC (A) - 1000

These settings resulted in the following benchmark results
Aggregate Arithmetic Performance - 67.50GOPS
Dhrystone iSSE4.2 - 81.69GIPS
Whetston iSSE3 - 55.78GFLOPS

I played around with the settings for a considerable time to achieve these results which would allow the computer to run the benchmark successfully (without lockup) and Prime95 to run an 8 thread torture test with no errors or crashing. I feel that these settings result in a stable overclocked setup for the M4500

I guess that is a good start

 

i made a how to oc 1800m about 10-20 pages ago

 

did u oc the cpu????

 

I think he did. I downloaded the software from softpedia and carefully scanned it. All the settings are there. Late now in California, but will look at it in the office tomorrow. Looks good at first glance.

I need the benchmarking tool to verify.

 

Yes, my processor - Intel i7-940XM is overclocked using Throttlestop

Be sure you get the 2.99 Version (Last page of this thread) ThrottleStop - Performance Adjustment Tool for Core 2 / Core i CPUs - XtremeSystems Forums

I just plugged the M4500 into the E-Port dock - 210W Power Supply (driving a Dell 3008WFPt 30" LCD Flap Panel) and reran the benchmark

Aggregate Arithmetic Performance - 67.84GOPS
Dhrystone iSSE4.2 - 82.33GIPS
Whetstone iSSE3 - 55.9FLOPS

2nd Test

Aggregate Arithmetic Performance - 68.9GOPS
Dhrystone iSSE4.2 - 86GIPS
Whetstone iSSE3 - 55.16FLOPS

 

@jerryyyyyy
@Dellienware (of course if anyone else want to share their experiences - you are much welcome )

I am thinking about getting configuration similar to yours. Could you please tell us what are your idle CPU and GPU temps? Can your CPU run fully loaded without throttling and by throttling I mean going down to 1.2G in the scenario where GPU is barely used?

I am worried that 1800M even if not used will contribute to the heat and make CPUs throttle even though they should not.

Are fans much audible and do they often stay on high rpms?

Regards,
Peter

 

Normal use temperatures appear to be around 46 to 51C GPU is low to mid 40's. This is on the dock.

When fully loaded it really depends on how many threads but with the setup I am using, no throttling is going on. At full load the temps can get into the high 90's but again this is at full load torture with 8 threads running. The fan is on full.

Controlling the clock modulation seems to be the key to prevent throttling. If you go over 100C, you will see some automatic multiplier throttling but with these settings I am not exceeding that temperature

If one core or two cores are loaded they run at 3.85GHz

If three or four cores are loaded, they run at 3.19GHz You really do not see the really high temps until the third and fourth cores are loaded.

The highest temps I've seen on the CPU maxed out at 100C and the GPU maxed at 62C.

I played significantly with the settings to find the right balance which achieved the highest bench without crashing or other problems under sustained full load.

Link to some of my benches
http://www.sisoftware.co.uk/rank201...fe988e9d4e6d2e3d5e3c5b78aba9cf99ca191b7c4f9c9

 

Well,
my configuration will dispatch much less heat compared to yours It will be 740qm + 1800M.

I am less worried after your reply. Thanks for such a quick response.

Regards,
Peter