Question about Evga nForce 680i SLI 775 TR (122-CK-NF68-TR) Motherboard

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System not powering up. Orange light coming on on evga 680i

I had a toasted power supply, which I have replaces. All connectors are now getting juice. When I connect the power cable, my evga 680i mobo blue light turns on, as is expected. When I press the POWER button on the case, I hear a VERY brief little squeak or peep... like a VERY short (less than one second) whining beep and an orange/amber light on the mobo comes on (near the blue light).

I pulled all but one DIMM of memory in the first black slot (as the mobo guide suggests), no change.

Any thoughts?


I am unsure of the proper voltage for the Memory, so I have been hesitant to change voltages from AUTO in my BIOS. I am willing to sdo it and take the risk is someone knowledgable tells me the proper value.


In the end, maybe a snip from Belarc advisor will help.

Operating System
Windows Vista Ultimate (x64) Service Pack 1 (build 6001)

System Model
EVGA 122-CK-NF68 2
System Serial Number: 1
Enclosure Type: Desktop

Processor a
2.67 gigahertz Intel Core2 Quad 64 kilobyte primary memory cache 4096 kilobyte secondary memory cache

Main Circuit Board b
Board: EVGA 122-CK-NF68 2
Serial Number: 1
Bus Clock: 267 megahertz
BIOS: Phoenix Technologies, LTD 6.00 PG 09/04/2008


600.13 Gigabytes Usable Hard Drive Capacity
460.05 Gigabytes Hard Drive Free Space

Memorex DVD16+/-DL4RWlD2 ATA Device [CD-ROM drive]

Posted by on

  • Scott Adams
    Scott Adams Jan 28, 2009

    Riaz -- You basically said: Check everything. I appreciate the thought, but I need more guidance than that.

  • Scott Adams
    Scott Adams Feb 03, 2009

    For anyone who ever looks, it was a faulty power supply. The chip wasn't getting any juice, but everything else was.


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Check your hardsik or memory or other wise out your motherborad and download in check card your problem will be ko
im riaz ahmed brohi or email

Posted on Jan 27, 2009

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The Nvidia GeForce 8800GTX graphics card, requires using TWO 6-pin PCI Express power cables,

MINIMUM power requirement for using TWO 8800GTX's is;

1) Using one 8800GTX requires a 450 Watt power supply.
Must have a 12 Volt power rail capable of 30 Amp's.
(If more than one 12 Volt power rail, add the amperage of all, to arrive at the total Amp's)

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Let me ask a couple of questions;

1) Does your Power Supply have the minimum required Wattage, and Amperage on the 12 Volt power rail? (Or rails)

2) Are you using a Power Supply, that has FOUR 6-pin PCI Express power cables?

3) Looking at the adapter power cable, shown on the right side of the above link;

IF, your Power Supply does Not, have the recommended amount of 6-pin PCI Express power cables; did you use -> TWO 4-pin Peripheral power cables, for -> EACH adapter cable?

(Mistakenly referred to as a 'Molex' power cable. Molex was the first to design the connector. Name kind of stuck, like calling a adjustable open-end wrench, a Crescent wrench)

Why the line of questioning?

Computer unplugged from power, Anti-Static Precautions FOLLOWED, remove the power cables from the cards.

A) Is the connection end of either power cable burnt? (There should be FOUR cables) Look close.

B) Remove the cards from the PCI Express x16 slots.
Look down into the PCI Express x16 slots at the contact pins. (With a light)
How about the gold plated contact pins on the cards?

There HAS to be TWO 6-pin PCI Express power cables, for EACH card.
There HAS to be TWO 4-pin Peripheral power cables used for EACH 6-pin PCI Express adapter power cable.

A 6-pin PCI Express power cable requires TWO 12 Volt wires. (Yellow)
Using just one 4-pin Peripheral power cable will cause burning.
Not right away. Takes time.

Everything chilly? I'm 'barking up the wrong tree'?

Okay, now look at the capacitors on the motherboard.
To the left of the Processor socket are 6 solid Polymer capacitors.
If one of these babies is bad, YOU will know it. They explode.

More of a concern is to look at the other capacitors.
The Electrolytic Capacitors.
More specifically, they are Radial Aluminum Electrolytic Capacitors,

Visual signs of failure for bad Electrolytic Capacitors,

LOOK CLOSE. Use a light. A slightly bulged top, or a capacitor on a hard lean, may be hard to see if this is your first time.

Everything 5by?

Then your Power Supply cr@pped out.

Each PCI Express x16 slot is capable of providing 150 Watts.
Each 6-pin PCI Express power cable is capable of providing 75 Watts.

[ PCI Express;

Scroll down, read under the bold subheading - Power

A LOT of power is required for the two cards alone, and I do not even know what mobo, processor, ram memory, fans, optical drive/s, and harddrive/s, you are running.

Appreciate it if you would post back with your findings.
Post in a Comment.


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hi im josh in cebu phils.may i help you? friend try my solution ; Problem: Your Monitor Works, but Displays an Error Message Before Windows Loads If you see an error message, you at least know that video signals are getting to your monitor. Look for these common messages:
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