Question about Intel D845GVSR Motherboard

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No Power in motherboard My VRM Section is OK but no power is obtain, small green light is on, but i am confuse to analysis to bios and sio (lpc47m172-nr) bad or is ok, please help me , i wait for your valueable reply

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Cpu fan is running but display is black & no bip sound

Posted on Apr 22, 2011

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Posted on Jan 02, 2017

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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

Fan move but, no display, every mosfet of vrm section are ok,input coil give 12vlt but output coil does'nt give any volt


Not sure what you mean exactly, but try changing the PSU if there is not voltage from the power rails

Dec 29, 2010 | MSI K9MM-V Motherboard

1 Answer

Compaq Deskpro EN 1GHz. power supply is ok. But not start with power on button. Green LED on mother board is on. How can I start this with start button (I think motherboard board problem.


Unplug it from the wall. Remove the side panel. Look for a small circular battery (similar to watch battery). Remove the battery for 30 seconds. Replace the battery, plug it back in. This should reset the bios. Green light on the board does not necessarily say good power supply as well. Very likely motherboard or power supply.

Dec 11, 2010 | Intel Compaq Deskpro EN Pentium 3 1Ghz /...

1 Answer

Thanks, this is an old and used computer with Intel P4 processor and intel motherboard D915GAV. It became dead silent and no component is powring up. Only the mother-boards light is ON when powered. I...


Thanks for the question its often problem in motherboard the power section in ur motherboard has the problem please consult a chiplevel engineer or if you know elctonics i can help you check the FETs the vrm section and the electrolytic capcitor for leakage

Sep 25, 2010 | Intel D915GAV Motherboard

1 Answer

Turns on and off and no display


there is short circuit in motherboard if your adater have small led and if LED off when you inseting power jack that means short circuit in dc to dc controller or VRM section on your motherboard

Feb 01, 2010 | HP Compaq nx6310 Notebook

3 Answers

Motherboard not powering up


hi this is parveen

solutiom for d845gvsr not poweringup only led flashing--

short pin 92 and 93 of smsc LPC47M172 with fine tip soldering iron .
pin 92 is nrsmrst signal that is 3.3v at time of working m/b when this signal is low than motherboard not powering up so we short pin 93 that is standby (3.3v) and motherboard powering up again and working properly this problem doesn,t come again in future. this solution is 98% working 2% chances to change the chip.

Aug 07, 2008 | Intel Motherboard

5 Answers

No Display


you should check vrm section &cmos jumper & ram & cmos battery&bios

Apr 15, 2008 | Gigabyte GA-8IPE1000-G (MBGA81PE1000G)...

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

1 Answer

Ga-7N400E powerup problem


VRM Circuit problem found there
disconnect only core voltage connetor and power on motherboard
if motherboard on so confirm that your vrm circuit is sort

replace vrm circuit mosfet

Feb 23, 2008 | Gigabyte GA-7N400E-L Motherboard

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