E6520 Owner's Thread

Does anybody know if the E6520 supports the same modular bay drive caddy as previous models, like this one for instance?

 

E6520 does support ddr3-1600 with i7-2720qm.
The memory score with dual channel 1600 is 7.8! And high memory band width will increase the performance of the intel graphic card.

I didn't buy expensive 1600 ram. The only thing I did was to change the spd of my ddr3-1333 cl=9 memory to ddr3-1600 cl=11 with thaiphoon burner.

 

Can someone please tell me if the height of the DVD drive on the Latitude E6520 is 9.5mm or 12.7mm?

I´m thinking of buying a blu-ray burner.

Thanks!!

 

@helderlima: The height of the DVD drive is 9,5mm

@lhz: I am using the same drive caddy (of Lenovo) that I used in my DELL-E6500. With this drive caddy
in my E6520 I copied the build in 2,5" SSD to my new 2,5" SSD.

@jambon and pbdavey
Thank you for posting your WEI Benchmark results. My new results are
7.4 (2720qm)
7.6 (Kingston 8GB KHX1600C9S3K2/8G)
6.4 (NVS 4200M)
6.4 (NVS 4200M)
7.7 (SSDSA2CW600G)

@futchi: I am using 8GB (do you also use 8GB?)
Kingston HyperX SO-DIMM Kit 8GB PC3-12800S CL9 (DDR3-1600) (KHX1600C9S3K2/8G)
http://www.valueram.com/datasheets/KHX1600C9S3K2_8GX.pdf
It is running with 1333MHz-CL7 (one of two XMP profiles in the SPD).
But it is not using the 1600MHz-CL9 (the second XMP profile in the SPD)
Any idea why 1600MHz is not selected in my E6520?
The next link is showing my Screenshots from CPU-Z. Can you post a screenshot of CPU-Z to?

 

Thanks for the reply! So... if I want to buy a blu-ray burner to put inside the EXTERNAL E-MODULAR BAY II (not inside the notebook), I need to look for a 9.5mm burner? Or is there room for a 12.5mm burner on the external bay?

 

@heinz
I use Samsung pc3-10600S 4GBx2. It's default frequency is 1333 cl=9.
I found there exists Samsung pc-3-12800s cl=11 memory. All spd is JEDEC, no xmp in SPD.

http://www.samsung.com/global/syste...1/2/16/717143m471b5273dh0_cf8_ch9_ck0_cma.pdf





So I manually changed the spd with thaiphoon burner. 1333 memory became 1600. I think E6520 only supports JEDEC SPD. It does not support XMP.
By the way, I also did the similar thing a few years ago. I made ddr2 667 cl=5 to 800 cl=6 with thaiphoon burner.

My WEI score:
7.5 i7-2720qm
7.8 dual channel 1600 4Gx2
6.4 NVS 4200M
6.4 NVS 4200M
5.9 WD 500GB 7200rpm

 

Thank you for the details, futchi.
I think "Max bandwith PC3-10700 (667 MHz)", as indicated in the
CPU-Z-screenshots, is the reason why the 2720qm selects 1333MHz.
Can I change this with the two weeks free version of thaiphoon burner?
My E6520 actually is running under the timings of XMP-1334/667MHz/7/7/7/20, so the profile XMP should be supported by the E6520 (I guess).

 

@Heinz

If you are not familiar with the modification of SPD, don't try to flash a new SPD. It is very easy to make your memory unusable.

The free version of Thaiphoon burner doesn't allow you to flash a new spd. Only the full version can. I used a cracked version.

 

Sounds cool... would be good to know you used a cracked tool to mod your RAM and that this requires some expertise else you can brick it.

GK

 

Thank you for your friendly advice. I will try to take care of the equipment. But I also have got backup memory if I fail. I have collected some expierience in software modifications of RAM-SPDs some years ago. Thank you for sharing your results. Actually I am on easter hollidays, so I will try the modifications next weekend.

For a general information in this thread the results of different configurations can be collected.
(maybe to build up a wiki)

1. Cheapest upgrade modules for standard performance
2. Maximum RAM configuration (8GB or even more?)
3. Maximum frequency of RAM per CPU (2720qm=1600MHz)
4. Minimal latency per module & MHz
5. Maximum performance configuration
6. Maximum speedup against standard RAM

I think speedup of CL7 instead of CL9 is between 0% and 2%
(2% at bandwidth applications [e.g. WINRAR}
close to 0% at GPU-load [e.g. games], at calculations, office and most applications.
I think your 1600MHz tweak (CL=11) also will have a speedup between 2% and 0% (depending on the application)
I think 1600MHz with CL=9 will have a speedup between 4% and 0% (depending on the application)
So for most users the time and cost of our memory tweaks are not worth the effect - and this will be a useful information.
A faster CPU would be a better deal with lower risk.
I myself will be testing the 1600/CL9 configuration mostly to learn about the details and to go "where no man has gone before"