Cyrozap's Tech Projects

Computers. Circuits. Code.

Possible Downtime

The server may be down for a week due to Hurricane Irene. Just letting you know in advance. If only I had my own fusion reactor...

Random Thought

I wonder how much faster my server would be if I ran it off of a 64 GB SSD... It would only be a $115 upgrade. Though, site speed would still be limited by the 3 Mbps upload rate. I long for 25/25 FiOS...

Wordpress Admin Errors

I was having EXACTLY the same errors as this guy—basically, none of the javascript elements in Wordpress were working, ex. Check All Checkboxes, multi-file uploader, text in the post editor was "invisible," etc.

How I fixed it:

  1. Delete all the files & folders in your "wp-includes" folder.
  2. Re-upload all the files & folders in the "wp-includes" folder.
  3. If any of the files failed to transfer, put them back in the transfer queue and send them again.

SUCCESS!

Server Upgrade Finally Complete!

I finally did it! The new server has all the parts that used to be in my old gaming machine, but it has the same HDDs as before (because I'm too lazy and cheap to get it a 1 TB SATA drive and image it from the old drives). For some reason, one of the NICs on the motherboard is present in the OS and activated in the BIOS but doesn't light up when a network cable is inserted. Oh, well; it has two, so it's no big deal. It also decided not to keep its network settings after a reboot, so I put the dhclient command in the /etc/init.d/rc.local file. Everything works now. There's a possibility that this will also be a TF2 server in the near future.

New-old server specs:

  • AMD Athlon 64 X2 4200+
  • ROG Crosshair II Formula Motherboard
  • 2 GB DDR2 667 RAM
  • 10 GB 5400rpm OS drive
  • 80 GB 7200rpm Data Drive
  • 430W Antec Earthwatts 80 Plus PSU

I'll definitely be posting to the blog a lot more now that the server won't hang every time I publish a post!

Speed Increase?

Well, I've recently had my Internet connection upgraded to 24 Mbps downstream and 3 Mbps upstream from 3 Mbps downstream and 1 Mbps upstream. I love it. Can you see a 3X speed increase in the blog's loading time? No? It's the stupid slow server's fault. That will soon be remedied, however, because I almost have sufficient funds to upgrade the server. We so excited. ;D

P.S. Follow me on Twitter—I post there when what I'm posting is too short to justify a blog post. If you already are following me, you know about my fancy new old 60 Hz analog oscilloscope.

What I've Been Doing Since Christmas

If you've noticed that I haven't been posting much recently, it's because of all the cool stuff I got for Christmas. First, I got an Apple TV (2010). This, as you may or may not already know, runs iOS 4 and is most electrically smilar to the iPad. For a $99 device, it sure packs quite a punch. It has a 1GHz Apple A4 processor, 8GB of flash storage, and 1080p hardware decoding and output, not to mention that it's running iOS 4 (yes, I already said that, but it's important). I'm still waiting for an untethered 4.2.1 AppleTV jailbreak, but once that's available, I want to see what I can do with it. Hey, since it's an iPad on the inside, maybe it can use USB keyboards... Hmm...

Among other things, of note were the ASUS Sabertooth X58 motherboard and the Corsair 6 GB 1600MHz DDR3 Triple Channel Memory Kit. The RAM is great (and fast!) and the motherboard is really easy to use to overclock. The Intel Core i7 950 I bought is great and I got it at a great price, too. Normally, it sells for over $300. Online, it usually sells under that. At Micro Center, it was listed at $229.99, but on Boxing Day in the store, it was $199.99. Of course, it was a long drive in the snow to get there, but for the price it was more than worth it.

I already posted about my heatsink problem (emphasis on "my" and "problem").

Team Fortress 2 runs quite nicely on my upgraded computer (which I'm using with a 380W "80 Plus" PSU, further proof that no one needs more than a 500W PSU unless they're using two CPUs) even with all the settings turned on max. I even have "Wait for Vertical Sync" turned on, which means I get a max of 60 fps, but because of my awesome setup, I get 60 fps consistently and there's no "tearing" of the image.

As usual, my server is slow. I still have the parts that I took out of my computer from when I upgraded it, but they won't fit in the highy-proprietary Dell case that my current server resides in. I would love to buy the Thermaltake A60 Computer Case for my i7 parts and hand down my current case to my server, but I have other purchasing priorities at the moment. If anyone wants to buy that case for me, let me know ;D

Hopefully, once I start using the new server parts, I'll be able to simultaneously run a Team Fortress 2 server and the webserver.

Early Christmas Gifts Are Awesome

The MK5 parts kit!

My dad got me a MK5 kit for Christmas after my MK4 broke for the 3rd time in a few months (PTFE insulators are annoying—I think my thermistor table was wrong). I have since put it together and am currently printing out the Holiday Prusa Mendel on Thingiverse with it. Talk about the gift that keeps on giving! :)

However, there were some problems I noticed:
- Thermistor read wrong temps—ABS now likes to melt at 200C
- Solder joints on power resistors melt partially when running at 200C
- The online instructions for putting it together didn't account for certain changes in the kit; for instance, it comes with two crimp connectors that are never explained.

I did make some improvements, however:
- Added thermal paste between power resistors and aluminum block
- Epoxy used to glue together base-plates to the legs of the extruder holder

My current grievances:
- I don't like that the solder joints are melting and cooling—I don't want to have the risk of breathing in those bad fumes.
- Teflon on nozzle is coming off tip

Final thoughts:
- If it doesn't work flawlessly, at least it works a lot more reliably than the MK4!

Interesting things I noticed today while writing this:
- The server is running quite quickly...
- The 5.1MP Sony Cyber-shot DSC-P93 I used to take the picture in this post (I got it for free from a friend of my dad) has hardly any image sensor noise. This is amazing compared to the amount of sensor noise in my 5.0MP Canon PowerShot S2 IS (consumer-grade DSLR).

I fixed the blog!

Yay me! I downloaded the entire database as a .sql file, opened it up in gedit, did a Find/Replace for cyrozap.blogdns.com to cyrozap.com, restored the database with that file, and I was done! I'm sure I could have done a similar thing from the command line, but I don't know MySQL very well.

Mission accomplished! ;D

Domain name change!

Woohoo! I successfully switched the domain name from cyrozap.blogdns.com (DynDNS) to cyrozap.com! I got a really good deal with 1and1.com ($8.99/year or something like that with the first year free—that's $.25 per month), and if you click on an individual post, you'll see that below the "Submit" button for comments, I switched the ad from Amazon to 1and1.com's affiliate program ad.

Well, now I can have subdomains, like store.cyrozap.com!

I also got the DynDNS name to redirect to the new domain name, so all the old links work.

My Apologies and Cellular Internet

Sorry about the downtime! That storm we just had (in the northeast US) knocked out our power for a few days, but it's back now and the server is fine.

During that time without internet at home, I went to the library to figure out how to tether my phone (use my phone's cellular modem to connect to the internet) to my computer.