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post #11 of 44

I just want to point out that it's not ghosting that's the issue, but key roll over.  If a mechanical keyboard features NKRO (N-Key Roll Over) then a PS/2 connection must be used in order to have NKRO.  This is because USB spec has a limitation of 6 simultaneous keypresses:  4 alphanumeric keys plus 2 modifiers.  Although, this doesn't always mean that blocked keypresses won't happen if the most you ever press at the same time is about 2 or 3.

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It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
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Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
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Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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post #12 of 44
Quote:
Originally Posted by TwoCables View Post

I just want to point out that it's not ghosting that's the issue, but key roll over.  If a mechanical keyboard features NKRO (N-Key Roll Over) then a PS/2 connection must be used in order to have NKRO.  This is because USB spec has a limitation of 6 simultaneous keypresses:  4 alphanumeric keys plus 2 modifiers.  Although, this doesn't always mean that blocked keypresses won't happen if the most you ever press at the same time is about 2 or 3.

Nkro is not really about the keyboard being ps2, but rater about how many diodes are soldered on the pcb. I dont know the theory behind this, but afaik, the more the better.

Then the usb limit happens.

I know for a fact that the filco is true nkro over ps2, and that you wont experience any ghosting over usb.
post #13 of 44

Like I said, if a mechanical keyboard features NKRO...

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CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
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Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #14 of 44
Quote:
Originally Posted by TwoCables View Post

Like I said, if a mechanical keyboard features NKRO...

«Most music keyboards and some high-end computer keyboards use an isolation diode with each keyswitch in their keyboard matrix.»
Source : http://en.wikipedia.org/wiki/Rollover_(key)


Most manufacturer cheap out on the isolation diodes, and decide to put them only in specific areas (this is what razer call «optimized gaming matrix».) The result is that some area will have as little as 2kro in some areas, even if it is on a PS/2 interface. My blackwidow, for instance, have a very limited rollover in the middle area of the keyboard, while the WASD cluster allow much more simultaneous keypresses.


That's what I wanted to share, actually. I do not think that you mentioned it in your post, that's why I am leaving this here.
post #15 of 44
Thread Starter 
what do you guys think of Leopold keyboards?
post #16 of 44
Quote:
Originally Posted by twitch772 View Post

what do you guys think of Leopold keyboards?

They have a good build quality, but they use cherry style stabilizer, which you may or may not prefer to costar stabilizers.
post #17 of 44
Thread Starter 
I think because buying steelseries equipment is just against my religion at this point im going with a white filco from amazon but i've also been looking at this crosair k60. looks great
http://www.amazon.com/Corsair-Vengeance-Performance-Mechanical-CH-9000004-NA/dp/B005QUQP80/ref=sr_1_1?s=electronics&ie=UTF8&qid=1354119392&sr=1-1&keywords=korsair+k60
post #18 of 44
Ah thats too bad - steelseries just had a Black Friday -> Cyber Monday deal on everything - i believe the 6gv2 red was $69 incl free shipping. I wanted an backlit one so i didnt grab it. Did pick up a cheap sensei and 9HD pad though
post #19 of 44
Quote:
Originally Posted by twitch772 View Post

I think because buying steelseries equipment is just against my religion at this point im going with a white filco from amazon but i've also been looking at this crosair k60. looks great
http://www.amazon.com/Corsair-Vengeance-Performance-Mechanical-CH-9000004-NA/dp/B005QUQP80/ref=sr_1_1?s=electronics&ie=UTF8&qid=1354119392&sr=1-1&keywords=korsair+k60

Keep in mind that the corsair is not fully mechanical.

Also, i'd advise that you buy a «real» mechanical keyboard (such as a ducky, deck, filco, leopold, etc) instead of a «gaming» mechanical keyboard, mostly because non gaming board often have a much better build quality, and also often feature nicer keycaps.
post #20 of 44
Quote:
Originally Posted by splinterize View Post


«Most music keyboards and some high-end computer keyboards use an isolation diode with each keyswitch in their keyboard matrix.»
Source : http://en.wikipedia.org/wiki/Rollover_(key)
Most manufacturer cheap out on the isolation diodes, and decide to put them only in specific areas (this is what razer call «optimized gaming matrix».) The result is that some area will have as little as 2kro in some areas, even if it is on a PS/2 interface. My blackwidow, for instance, have a very limited rollover in the middle area of the keyboard, while the WASD cluster allow much more simultaneous keypresses.
That's what I wanted to share, actually. I do not think that you mentioned it in your post, that's why I am leaving this here.

 

My point is, if one of the features listed for the mechanical keyboard is full NKRO, then using the PS/2 connection will get you full NKRO.  If I remember correctly, the BlackWidow does not feature full NKRO.

 

So, all I'm saying is that I don't want anyone thinking that they're going to have full NKRO if they just use a PS/2 connection since it doesn't work like that.  The only way full NKRO can be had over PS/2 is if the keyboard is designed for it and that it is specifically listed as one of its features.  If a mechanical keyboard's list of features does not specify full NKRO, then don't expect full NKRO over a PS/2 connection.  That's really all I'm saying.

It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
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