Question about Dell Precision Workstation 670 PC Desktop

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Dell Precision 670 Workstation possible VRM 0 issue

The computer stays powered, but drops the operating system and all the peripherals at will. The bays don't work, the monitor goes into "no DVI" signal, and the power button and HD LED remain illuminated. By simply leaving the computer alone, it will come back to life and show the Windows Login screen. If I press ctrl,alt,del and try to log in it may let me, but ultimately it just takes a dive at will. This all started last Thursday after some freaky storms here and I had no UPS. Please Help - Shaun Beauchamp (sbeauchamp@xactfluid.com)

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Hello,

I can figure out what happen to your PC. However since that your pc keep slow ..If you can do open your pc and try to refix all the connection. the memory, hard drive, VGA card and other and test.. if this not solve then try to restore your original by reinstalling your windows operating system.

may this help,

melnavz

Posted on Jun 25, 2008

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Dell precision 670 diagnostic lights y g y


http://www.dell.com/support/Manuals/us/en/19/Product/precision-470

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.

http://www.ebay.com/itm/DELL-H2703-PRECISION-470-670-VRM-VOLTAGE-REGULATOR-MODULE-TH-0H2703-WS470-WS670-/380369885440

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.
Regards,
joecoolvette

Mar 22, 2013 | Dell Precision Workstation 670 PC Desktop

1 Answer

Dell workstation 670 reads bootmgr is missing


Your operating system software is corrupted or your hard drive is defective.

Oct 07, 2012 | Dell Precision Workstation 670 PC Desktop

1 Answer

Dell precision 470 work station processor fans over speed


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

http://support.dell.com/support/edocs/systems/ws470/en/ug_en/index.htm

Tools to Help Solve Problems > Diagnostic Lights,

http://support.dell.com/support/edocs/systems/ws470/en/ug_en/advtrbl.htm#wp1057482

"A possible VRM 0 has occurred"

VRM = Voltage Regulator Module

Here is what the motherboard looks like,

http://www.ebay.com/itm/DELL-PRECISION-Workstation-470-XC838-Motherboard-with-2GB-/140795014004?pt=Motherboards&hash=item20c8096b74

[Note* Posted for photo reference only. Not for advertising.
Besides, I do not see any VRM's plugged in. Means you get the motherboard only, and no VRM's. You need a VRM ]

What the Voltage Regulator Module looks like,

http://www.thebestpartinc.com/kg229.html

(Again, not for advertising. Click on the photo of the VRM to enlarge)

Notice that your motherboard has two VRM's. This is because there are two Processors.
Apparently the VRM for one of your Xeon processors is bad. (Z-on)

Since it states VRM -> 0, it is for the Processor 0, or in the number 1 processor socket.

What does a Voltage Regulator Module do for a Processor?
Regulates voltage.

A Processor MUST have a steady, 'clean' supply of voltage, AND it must be within the voltage range for the processor.

Since the motherboard uses an Intel E7525 motherboard chipset, it can support Intel Xeon processors, with up to an 800MegaHertz Front Side Bus. (800MHz FSB)

Looking at a typical Intel Xeon single-core processor, with an 800MHz FSB, let me show you it's voltage requirements,

1.287 to 1.400 (DC)

May be just a bad VRM.

However, I would also like you to look at the Electrolytic Capacitors on the motherboard. From what I have seen, those motherboards are notorious about having capacitors go bad.

Visual identification of bad Electrolytic Capacitors,

http://www.capacitorlab.com/visible-failures/index.htm

For additional questions please post in a Comment.

Regards,
joecoolvette

Jul 09, 2012 | Dell PC Desktops

1 Answer

I have had problems when starting from cold - the workstation dell Precission 670 starts to boot then it gets to the window screen for only a few seconds and the screen goes dark and the "B" & "C"...


B and C usually indicate a drive failure. if issue only occurs on COLD boot and successive boot attempts gain access to the OS, then the most likely issue is that the HDD is slow to come to operating speed, (Drive has to be at Approx 97% of rated rotation speed before is can successfully read) on drives where the spindle is slow to come to speed, a cold boot then successive warm reboot will often gain access to the HDD/OS
http://www.fixya.com/support/r4282412-find_no_post_diagnostic_information_dell
One problematic issue on diagnosing this is that you only have 1 opportunity to run diags (The cold boot) and get a reading on if the drive is failing to read (also because diags are generally slower to load, the drive may come up to speed before the diag actually runs)
If issue is problematic and getting worse, I'd replace the HDD

Oct 22, 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

1 Answer

Is there a way to make sure both for my processes are working in my 670 Dell. I checked device manager it only registers one CPU. Two are installed with the extra VRM. No error messages are shown.


I would suggest going to the dell website and ensuring that all drivers are updates to their most current version. Also, flash the BIOS to the most current version if it is not showing the same version offered on the site.

Good Luck,

Jesse

Jan 11, 2010 | Dell Precision Workstation 670 PC Desktop

1 Answer

Noisy piece of "Dell" lol


That's a confusing description of the events charles.

Have you identified the cause of the original problem - the dead caps? Is Over Voltage a possibility - have you verified the stability of the PSU?

Apologies if I've misunderstood.


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May 19, 2009 | Dell Precision Workstation 670 PC Desktop

5 Answers

Possible VRM 0 failure


69bf9f3.jpghi dear
Short for voltage regulator module, a small module that installs on a motherboard to regulate the voltage fed to the microprocessor. Nearly all motherboards have either a built-in voltage regulator or a VRM, the only difference being that the VRM is replaceable.
the cost is about $80 USD

oke


cropp

Mar 23, 2008 | Dell Precision Workstation 670 PC Desktop

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