Welcome, Guest. Please login or register.

Author Topic: NEC usb hack for mediator  (Read 34658 times)

Description:

0 Members and 1 Guest are viewing this topic.

Offline Hizoap

  • Newbie
  • *
  • Join Date: Mar 2005
  • Posts: 31
    • Show all replies
Re: NEC usb hack for mediator
« on: November 11, 2011, 02:26:05 AM »
@mechy
You might want to check your LDO too, depending on the cards you use.

Finally someone understood my signature.
0EE4-089E
 

Offline Hizoap

  • Newbie
  • *
  • Join Date: Mar 2005
  • Posts: 31
    • Show all replies
Re: NEC usb hack for mediator
« Reply #1 on: November 11, 2011, 04:10:39 PM »
Quote from: billt;667444
Ah, I see. I assume this makes the USB card not work on PCs anymore.


No, it will work in a pc too. I had no problems in pci 2.2

Readout from using finalwire, ebay usb on the left - elbox usb on the right.
0EE4-089E
 

Offline Hizoap

  • Newbie
  • *
  • Join Date: Mar 2005
  • Posts: 31
    • Show all replies
Re: NEC usb hack for mediator
« Reply #2 on: November 11, 2011, 04:13:37 PM »
Quote from: mechy;667386
I ran all these cards for a good while with the ports loaded(1hr+). the 3 port card has a ldo regulator and a jumper for 3.3/5v  i ran the card at 5v on the 3.3 setting(torture testing),it makes me think the chipsets are 5v tolerant,because i saw no i'll effects.The 5 port card has no regulator to speak of but it too ran flawless for over a hour loaded.My mediator does not have a 3.3v hack.

the 2- 5 port cards i have are going to friends for stress testing,and i won't have more till the beginning of the week. by then multiple people have tested them and if theres a problem to be found it should surface. but i am confident they work well.
-----------------------------------------
From wiki-take it for what its worth:

Card voltage and keying

 
 
 
 Typical PCI cards have either one or two key notches, depending on  their signaling voltage. Cards requiring 3.3 volts have a notch 56.21 mm  from the card backplate; those requiring 5 volts have a notch 104.47 mm  from the backplate. "Universal cards" accepting either voltage have  both key notches. This allows cards to be fitted only into slots with a  voltage they support.
-----------------------------------------------

the cards i'm using have both notches,so i believe them to be universal.

mech


The nec 720101 has 3.3 V power supply, PCI signal pins have 5 V tolerant circuit.
0EE4-089E