Precision M4600 Owners Lounge

JonasM,
Thanks. In my case, ips isn't available to M4600 in China/Hong Kong. And your remark is very persuasive.

 

I've made a crystaldiskmark test with my M4600 and Intel 310 80Go SSD, here's the results :

-----------------------------------------------------------------------
CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
Crystal Dew World : Crystal Dew World
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 200.665 MB/s
Sequential Write : 86.281 MB/s
Random Read 512KB : 158.269 MB/s
Random Write 512KB : 51.688 MB/s
Random Read 4KB (QD=1) : 20.300 MB/s [ 4956.1 IOPS]
Random Write 4KB (QD=1) : 23.035 MB/s [ 5623.9 IOPS]
Random Read 4KB (QD=32) : 149.293 MB/s [ 36448.6 IOPS]
Random Write 4KB (QD=32) : 50.558 MB/s [ 12343.3 IOPS]

Test : 1000 MB [C: 55.6% (41.4/74.5 GB)] (x5)
Date : 2011/06/08 12:46:21
OS : Windows 7 SP1 [6.1 Build 7601] (x64)

 

Here in Italy the difference in price between 2920xm and 2820qm is 500 €. By the way I would be interested in CPU and GPU performance working on life science research field.
The lock of the overclocking function can be understood because of stability, but it is a heavy bottleneck. May be it could be solved in the next months by a bios update.

 

Dell purposely locked the overclocing function and they don't see it as a problem, so i don't think they will ever 'solve' it.

only a bios hack can solve this, but Dell uses own bios so it is very difficult to do that.

 

Here is my CrystalDiskMark result with i7-2820QM, 8GB Ram, Samsung PM810 128GB SSD :


-----------------------------------------------------------------------
CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
Crystal Dew World : Crystal Dew World
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 249.839 MB/s
Sequential Write : 243.572 MB/s
Random Read 512KB : 187.992 MB/s
Random Write 512KB : 233.365 MB/s
Random Read 4KB (QD=1) : 15.971 MB/s [ 3899.2 IOPS]
Random Write 4KB (QD=1) : 39.550 MB/s [ 9655.9 IOPS]
Random Read 4KB (QD=32) : 129.380 MB/s [ 31586.9 IOPS]
Random Write 4KB (QD=32) : 66.780 MB/s [ 16303.7 IOPS]

Test : 1000 MB [C: 31.7% (37.8/119.1 GB)] (x5)
Date : 2011/06/08 14:20:08
OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)

 

I just figure I've a small issue with my space bar : it makes little noise when I push it.
Other keys are absolutely silencious...only the space bar makes that annoying noise....
For the price I've paid, I think I should not experiment that sort of trouble...

Does someone has the same problem on his M4600 ???

 

my enter key started making a squeaky noise for a few days then it stopped.

 

I popped the back off to look around and have two questions:

1. Is the WWAN slot where an mSATA SSD could be installed (I have the main drive as SSD but want to add another)?

2. What is the slot labeled DMC for?

Thanks!!

 

Another issue I'm experimenting :

When I play game with AC adapter, there's no lag, but once I remove it and use the battery, the games are lagging a lot, I precise I've selected the ultra performance mode on the battery, but still the same...

Does someone have experimented the same problem ?
Is it because of the IPS panel wich need to much power ???

 

The M4600 is so powerful, , that it can't run at full power on the battery. The system will kick down the performance when the AC adapter is removed. This is true for all new workstations, they just consume more power than the battery is able to provide.