Results 81 to 88 of 88
-
02-02-2012 12:54 PM #81
- Join Date
- Jan 2012
- Reputation
- 17
- Posts
- 76
-
02-02-2012 01:14 PM #82
http://hackipedia.org/Hardware/video...rd%20v1.1a.pdf
Page 196
See footnotes
Notes:
1) Pins 13 and 14 must be connected to ground through a pull-down device. External devices and cable
assemblies must be designed to not rely on a low impedance ground path from these pins.
2) Pin 20, PWR Out, must provide +3.3 volts ± 10% with a maximum current of 500 mA and a
minimum power capability of 1.5 watts.
Figure 4-14 shows the wiring of an external cable connector assembly. The standard external cable connector assembly must not have a wire on pin 20, DP_PWR.
-
02-03-2012 12:16 AM #83
- Join Date
- Jan 2012
- Reputation
- 17
- Posts
- 76
Pin 20 sounds like a viable possibility. I bought all three cables at the same time so if there is a design flaw it would be repeated.
I will try and test the current cables for continuity this weekend. I also ordered a second set.
Thanks for the investigation and the link! I will let everyone know how it goes.Last edited by roadczar; 02-03-2012 at 02:13 AM.
-
02-03-2012 01:47 AM #84
- Join Date
- Jan 2012
- Reputation
- 17
- Posts
- 76
Quick update, RMAd CPU did not correct anything - no surprise here...
Cables are next.Last edited by roadczar; 02-03-2012 at 01:51 AM.
-
02-03-2012 03:30 AM #85
- Join Date
- Jul 2011
- Reputation
- 94
- Posts
- 725
we have managed to replicate the issue
It is indeed crappy cables:
During standby:
1 cable leaks 1.50v to mb/psu +3.3v
2 cables leak 1.72v to mb/psu +3.3v
3 cables leaks 1.89v to mb/psu +3.3v
Worse is your VGA, 3 cables leak 2.7v to VGA - during standby!
the above are leaked thru pin 20. compliant cables (for eg Apple's branded DP cables) will not have pin 20 connected)
So lesson is get the proper cables, even if we can solve the problems you dont want this leakage!
-
02-03-2012 03:49 AM #86
- Join Date
- Jan 2012
- Reputation
- 17
- Posts
- 76
Wow Shamino good job man!
It was a tough one since I have used the same setup for some time now without any symptoms. Kind of a crazy cable specification when think about it… Just asking for issues. …
I definitely appreciate the efforts. For me it meant 3 motherboards, 4 PSUs, 2 CPUs, and 4 GPU water block re-seatings.
Thanks so much!
-
03-15-2012 10:57 AM #87
- Join Date
- Mar 2012
- Reputation
- 10
- Posts
- 1
the same problem
Hi all
I have the same problem with my mobo, but unfortunately my mobo was not able to start, all time post CODE 00,
and today I was leave all pc outside, where temperature is -2 celcius
and mobo was start on the morning, but what i was found the bios reset button was press many times and also the battery was removed, and when I was start pc today morning mobo was still member the OC setings but i was go in to the bios and F5, to reset bios to default,
this problably means on the mobo is some capacitor, which still keep some wrong parameters and when mobo was outside, this capacitor lost all current an was able too start, or is some "cold contact" and when mobo was frozen all connection is strengthened,
I have also request can someone send to me the new bios which can help with post code error 00,
and I'll still try to find what might be causing this error
and I was try too fund solution
-
03-15-2012 11:48 AM #88
- Join Date
- Jan 2012
- Reputation
- 17
- Posts
- 76
Sounds like a different issue from mine, but I sent you a PM.