This is just quality fun. In windows you need to use putty and then telnet to

[zp src=”nyanyanyanya.jpg” album=”vivi” width=”600″]


E6420 SSD benchmark ATA vs AHCI – Samsung 128GB SSD Model: MZ-7PA1280/0D1

There’s not a lot of informationon these drives, but this is what Dell gave us, and charged us an extra $300~ for (rip off)…but at least it makes for some pretty benchmarks for you guys :).

It was a bit difficult to find specifications for this drive, but I did find an ebay listing with some specifics :

Manufacturer: Samsung
Model: MZ-7PA1280/0D1
Manufacturer P/N: MZ7PA128HMCD-010D1
Made in: Korea

Main Features
Connector Serial ATA 7-pin
Connector Type SATA 3.0 Gbps
* Capacity: 128 GB
* Form Factor: 2.5 inch
* Interface: SATA
* NAND Flash: Samsung 32 nano
* Shock: 1500G, duration 0.5ms, Half sine wave
* Vibration: 20G Peak, 10~ 2000Hz, (15mins/Axis) x3 Axis
* Performance:
Sequential Read Rate: 250 MB/s(max)
Sequential Write Rate: 200 MB/s(max)
Random Read Rate: 25K IOPS
Random Write Rate: 7K IOPS
* MTBF: 1,000,000 hours
* Power Supply: 5V ± 5%
* Dimensions: 69.85 x 100.2 x 9.50 mm
* Weight: 68g

So Dell gave us a Sata II drive for a Sandy bridge system with Sata III, nice and cheap of them. All I did to test ATA vs AHCI was test/install under ATA, and then run the fix for ATA -> AHCI which cab can be found here

Here’s a picture of the laptop (E6420) :

[zp src=”e6420.JPG” album=”blog/e6420/” width=”600″]

and the SSD itself :

[zp src=”samsung-ssd.JPG” album=”blog/samsungSSD/” width=”600″]

Here are the ATA benchmarks :

[zp src=”atto-ata-samsung.jpg” album=”blog/samsungSSD/” width=”600″]

[zp src=”crystal-ata-samsung.jpg” album=”blog/samsungSSD/” width=”600″]

And the AHCI benchmarks :

[zp src=”atto-ahci-samsung.jpg” album=”blog/samsungSSD/” width=”600″]

[zp src=”crystal-ahci-samsung.jpg” album=”blog/samsungSSD/” width=”600″]

I also did a test on new, from scratch build with this laptop/samsung SSD :

[zp src=”atto-ahcifresh-samsung.jpg” album=”blog/samsungSSD/” width=”600″]

[zp src=”crystal-ahcifresh-samsung.jpg” album=”blog/samsungSSD/” width=”600″]

I think there was a fluke during the 4k read with the crystal benchmarks, but the bump is impressive. There’s almost a loss when doing a fresh install (which is a dell factory image), interestingly enough. Good information, hopefully helps people move towards AHCI for the performance gains!


How to crack Windows XP local account passwords with a USB/Jump drive

I browsed the web, found a few failed attempts, and then found the one that worked great, and I liked. The only issue that i’ve seen is that it can only decrypt passwords less then 15 characters, but I have not tested that.

Find a jump drive, at least 1GB in size (data will be erased, so copy anything pertinent off).

Download ophcrack livecd XP 2.3.1 (note, if you want to do a Vista/Windows 7 recovery use ophcrack livecd VISTA/7 2.3.1)

Download tazusb.exe

Now that you have everything needed, we can go through setting up the jump drive as a bootable device, using the ISO’s you just downloaded. This step is very simple, you will not have to install anything, that tazusb.exe is a portable “run once” application.
So start/run tazusb.exe
hit next
browse out to the ISO you downloaded
Select the destination drive
Hit install

You should see things being copied over, and once completed, you should be safe to reboot, or plug it into the machine you do not know the password to. What I like about this ophcrack, is that once it is set up, it is 100% automated. All you need to do now is :

Boot to USB (typically pressing F12 before splash screens will get your boot device options)

Select your jump drive

Select automatic

[zp src=”ophcrack1.jpg” album=”blog/ophcrack/” width=”600″]

You’ll see some text go by

[zp src=”ophcrack2.jpg” album=”blog/ophcrack/” width=”600″]

Now you just wait, while it brute forces the passwords for you. What I like about this, is that you do not even need to select what you want, it will brute force all of the accounts on the computer.

[zp src=”ophcrack3.jpg” album=”blog/ophcrack/” width=”600″]



ophcrack project homepage


To the Minneapolis “The Hub” and back!

So I got my new bike, and had an issue with the new disc brakes, so we biked to The Hub and back. It was fun, even with the brakes holding me back a bit!

[fitmap id=”48332434″ type=”ride”]

Operating Systems Uncategorized

Error 1720 with Microsoft Windows Installer

I had noticed this error a few times when trying to remove programs. I specifically used this for Windows XP.

Install/Download this :

If that does not fix it, try and run a driver cleaner, like these :

All you need to do with the cleaners is remove the bad install, and you should be good. You can also try the latest installer here :

I haven’t had to deal with this in a few months, so it’s a little fuzzy, but if anyone needs specifics, ask…i’ll try to replicate the issue and get more details.

Computer Hardware Uncategorized

Dell D620/D630 PCMIA slot stops working

Have you ever run into this issue? We have MANY aircards and ran into this a handful of times. The first time around we went through drivers, different PCMIA cards, etc. So we called Dell, that had no idea, and sent us out a new PCMIA card. I decided to install it myself, instead of a tech this time. What I found out was that the ribbon cable (seen in the following picture), is actually coming loose. So if you push down on the left side of the palm rest (with the laptop off, the hard drive is right there as well, we do not want that spinning). That’s right the fix is :

Push down on the left side of the palm rest (with the laptop off), and it should make a connection. If you notice, the adapters naturally want to pull out of the little socket they plug into.

I later found out that this was a huge issue with D620’s, and with D630’s, they actually have a thicker pad between the palm rest and the ribbon…go figure!

[zp src=”d620_adapters.JPG” album=”blog/etc/” width=”600″]


First Minnesota snowfall!

This post is definitely not PC related … the first Minnesota snowfall! This was taken with my iphone4, nothing special, just wanted to snap a shot…HDR on.

[zenphoto src=”IMG_0540.JPG” album=”vivi/” width=”500″ /]

[zenphoto src=”IMG_0541.JPG” album=”vivi/” width=”500″ /]


Penny Arcade

Penny Arcade has started to film short 6-9 minutes clips of the authors/creators of Penny Arcade. If you’re a nerd, it’s great fun watching them go through their office, and watch them work.


1)They work few hours a week
2)play games
3) …
4) profit