Question about Dell Precision Workstation 670 PC Desktop

1 Answer

My dell precision 670 will not start. very little action, something is spinning, video does not even come up. on left 2 yellow lights, on right 2 greenlights. Is it fried?

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 85 Answers

Here ya go :)
Diagnostic Lights

Posted on Feb 01, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Diagnostic lights a green, b & c orange

Rear Lights Dell Computer Error Codes

Rear LEDS are labled A through D and can change from green to yellow. Some typical LED reading might be:
A - yellow, B - yellow, C - green, D - green <-- Indicates a problem with the RAM.
A - yellow, B - green, C - yellow, D - green <-- Indicates a problem with the video card.
Refer to the Dell website for your specific model, as these lights can vary from model to model.

see more from this site
Dell Computer Error Codes

Jan 16, 2014 | Dell Precision Workstation 670 PC Desktop

1 Answer

Dell precision 670 diagnostic lights y g y

Click on -
Dell Precision Workstation 470 and 670 Computer User's Guide

In the list on the right side, click on - Tools to Help Solve Problems

In the list on the left side, click on - Diagnostic Lights

Yellow (A) Green (B) Yellow (C)

"A possible VRM 1 failure has occurred"

VRM stands for Voltage Regulator Module.

It regulates Voltage for the Processor.

The Processor MUST have a steady, 'clean', supply of Voltage; and it MUST be kept within the tight voltage range, for the Processor.

Too little, or too much; and the Processor turns off. (BIOS turns it off)

Your motherboard supports two Processors.

1) Processor (CPU_0) Zero which is in the middle of the motherboard, next to the PCI Express x16 slot;

2) and Processor (CPU_1) One, which is next to it.

The VRM 1 has failed. Needs to be replaced.

VRM's used are interchangeable.

IMHO you can remove Processor 1 (CPU_1), and it's VRM, and still use the computer; albiet slower though.

For additional questions please post in a Comment.

Mar 22, 2013 | Dell Precision Workstation 670 PC Desktop

1 Answer

Precision 670 power supply clicks but doesnt start pc

Have you looked in the power supply for puffed up caps?

left one is good and right one bad.


arrows point to really bad ones

May 29, 2012 | Computers & Internet

1 Answer

I have a Dell precision 670 dual ZEON CPU ws and it has stopped working (Note after a move) diag lights ( on the front panel) A,B,C are lit and yellow, the power button is yellow instead of green and the...

Reseated? How Rick?

Did you;
1) Have the computer unplugged from power, and follow Anti-Static Precautions?
2) Did you clean the top of the processors, and bottom of the Heatsink's - Thoroughly, and properly apply new, fresh thermal paste?

[ If they had thermal pads on the Processors, remove them, throw them as far as you can.
One, they are JUNK. Two, you cannot reuse them.

The imprint has been made, and you cannot imprint over.

{The Heatsink, and Processor make an imprint on a thermal pad. The pad is squeezed down. You cannot re-squeeze again, and make a successful complete contact. A thermal pad also dries out a lot faster than thermal paste. Poor design ]

3) The LED lights you refer to are Diagnostic LED lights.

A, B, and C are Yellow.
The Power On LED light is Yellow,

Dell Support > Precision 470 and 670 Workstation Desktop PC Users Guide,

Solving Problems

Power Problems:

If The Power Light is Amber and Green or Steady Amber;
A device might be malfunctioning or incorrectly installed.
  • Remove and then reinstall the memory modules.
  • Remove and then reinstall any cards.
  • Remove and then reinstall the graphics card, if applicable.
Diagnostic Lights before P.O.S.T. (Power On Self Test)

A, B, C, are Yellow, D is blank or Off.
BIOS is not executing - Ensure that the Processor is seated correctly, and restart the computer.

Almost sounds like a problem with the motherboard voltage regulator circuit, if the Processors were handled with Anti-Static Precautions being observed, and new thermal paste being used, after proper cleaning.
{A Processor is the MOST susceptible computer hardware component to Static shock}

Motherboard Voltage Regulator Circuit
A series of Electrolytic Capacitors on the motherboard, (Yes, in a Series circuit, also), that among other duties, regulate voltage for the Processor/s.

Computer unplugged from power, Anti-Static Precautions observed, remove the motherboard, and visually inspect all 'caps' on the motherboard,

Post back as to your findings, in a Comment. (Believe upper right of your page, blue Comment)


Sep 16, 2011 | Dell Precision Workstation 670 PC Desktop

1 Answer

I have a Precision 670 that I put two 512MB DDR CL3 ECC REG ram sticks in and it will start up but when it reboots, it beeps two slow, two fast, two slow and stops. lights on front turn: AC are...

The issue seems to be that your PC can not handle the supported memory. After review of your system specs on dell's website, I see that you're computer would require DDR2 Memory. This seems to be what is causing the beeping. Please check to ensure you are using the correct memory stick. I hope this has helped

Jul 05, 2011 | Dell Precision Workstation 670 PC Desktop

1 Answer

DELL Precision Workstation 670 second processor not working

Did you change BIOS settings or does your BIOS supports dual processors?

Jul 19, 2010 | Dell 3.8 GHz Second Processor for...

1 Answer

My Dell 670 had a blue screen when the c drive

try to remove or detach any newly hardware.and check the Ram

Feb 03, 2010 | Dell Precision Workstation 670 PC Desktop

2 Answers

Take a 2-CPU Precision 670 down to 1-CPU

You probably removed the "primary" CPU,
and the computer cannot operate only with the "secondary" CPU installed.

Move the CPU from the "secondary" slot to the "primary" slot.

Jan 13, 2010 | Dell Precision Workstation 670 PC Desktop

4 Answers


Have you tried a differnt video card?  Also disconnect everything including the hard drive to see if the system will POST.  If it does, them start connecting 1 item at a time.

Oct 25, 2007 | Dell Precision Workstation 670 PC Desktop

Not finding what you are looking for?
Dell Precision Workstation 670 PC Desktop Logo

603 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dell Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18394 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

mukhtar21 shaikh
mukhtar21 shaikh

Level 3 Expert

2017 Answers

Are you a Dell Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides