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Monitor Displays "No Signal" even CPU/M.Board is Running


Dear Forum,

My Monitor is AOC LED monitor, it works fine till date but from few days my monitor shows "No Signal" after 15-20min of working. RAM/Hard Disk and Monitor working fine but after sometimes CPU is neither restart or shut down nor showing processor blinking light, it require to power off from source. Few days before I installed 2GM DDR2 RAM in addition to 1GB DDR2 RAM, I tried replacing each other and removing one by one. I also tried to clean CPU by blowing air to make dust free. Also I replaced new VGA cable by old one. Monitor works fine but he problem persist after so many efforts.

Is it due to CMOS battery or Motherboard problem..??

Please suggest the way forward to solve this problem.



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3 Replies

Hello Ashok, thanks a lot for posting your inquire at Intel communities.

Would you please provide me your system information?

  • Motherboard model number:
  • Processor:
  • Memory information:
  • BIOS version:

Dear Sylvia,

Please refer below info;


Manufacturer Intel Corporation

Model D945GCPE (LGA 775)

Chipset Vendor Intel

Chipset Model i945G

Chipset Revision A2

Southbridge Vendor Intel

Southbridge Model 82801GB (ICH7/R)

Southbridge Revision A1

System Temperature 42 °C


Brand Intel Corp.

Version PE94510M.86A.0050.2007.0710.1559

Date 10-07-2007



PCI Data

Slot PCI

Slot Type PCI

Slot Usage Available

Bus Width 32 bit

Slot Designation PCI SLOT 1

Characteristics 3.3V, PME, SMBus

Slot Number 0

Slot PCI

Slot Type PCI

Slot Usage Available

Bus Width 32 bit

Slot Designation PCI SLOT 2

Characteristics 3.3V, PME, SMBus

Slot Number 1


Intel Pentium E2160

Cores 2

Threads 2

Name Intel Pentium E2160

Code Name Conroe

Package Socket 775 LGA

Technology 65nm

Specification Intel Pentium Dual CPU E2160 @ 1.80GHz

Family 6

Extended Family 6

Model F

Extended Model F

Stepping D

Revision M0

Instructions MMX, SSE, SSE2, SSE3, SSSE3, Intel 64, NX

Virtualization Not supported

Hyperthreading Not supported

Fan Speed 1159 RPM

Bus Speed 199.5 MHz

Rated Bus Speed 798.0 MHz

Stock Core Speed 1800 MHz

Stock Bus Speed 200 MHz

Average Temperature 50 °C


L1 Data Cache Size 2 x 32 KBytes

L1 Instructions Cache Size 2 x 32 KBytes

L2 Unified Cache Size 1024 KBytes


Memory slots

Total memory slots 2

Used memory slots 1

Free memory slots 1


Type DDR2

Size 2048 MBytes

Channels # Single

DRAM Frequency 332.5 MHz

CAS# Latency (CL) 5 clocks

RAS# to CAS# Delay (tRCD) 5 clocks

RAS# Precharge (tRP) 5 clocks

Cycle Time (tRAS) 15 clocks

Bank Cycle Time (tRC) 21 clocks

Physical Memory

Memory Usage 65 %

Total Physical 1.99 GB

Available Physical 695 MB

Total Virtual 3.98 GB

Available Virtual 2.47 GB


Number Of SPD Modules 1

Slot # 1

Type DDR2

Size 2048 MBytes

Manufacturer Kingston

Max Bandwidth PC2-6400 (400 MHz)

Part Number 2G-UDIMM

Serial Number 7E24FAC2

Week/year 15 / 14

BIOS Version:

As provided in Motherboard info..

AGAIN, I'm PROVIDING "DxDiag Report"


System Information


Time of this report: 9/7/2014, 13:01:44

Machine name: ASHOK-PC

Operating System: Windows 7 Home Basic 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.140303-2144)

Language: English (Regional Setting: English)

System Manufacturer: INTEL_

System Model: D945GCR_

BIOS: Default System BIOS

Processor: Intel(R) Pentium(R) Dual CPU E2160 @ 1.80GHz (2 CPUs), ~1.8GHz

Memory: 2048MB RAM

Available OS Memory: 2038MB RAM

Page File: 1317MB used, 2757MB available

Windows Dir: C:\Windows

DirectX Version: DirectX 11

DX Setup Parameters: Not found

User DPI Setting: Using System DPI

System DPI Setting: 96 DPI (100 percent)

DWM DPI Scaling: Disabled

DxDiag Version: 6.01.7601.17514 64bit Unicode


DxDiag Notes


Display Tab 1: No problems found.

Sound Tab 1: No problems found.

Input Tab: No problems found.


DirectX Debug Levels


Direct3D: 0/4 (retail)

DirectDraw: 0/4 (retail)

DirectInput: 0/5 (retail)

DirectMusic: 0/5 (retail)

DirectPlay: 0/9 (retail)

DirectSound: 0/5 (retail)

DirectShow: 0/6 (retail)


Display Devices


Card name: Intel(R) 82945G Express Chipset Family

Manufacturer: Intel Corporation

Chip type: Intel(R) 82945G Express Chipset Family

DAC type: Internal

Device Key: Enum\PCI\VEN_8086&DEV_2772&SUBSYS_D6078086&REV_02

Display Memory: 256 MB

Dedicated Memory: 0 MB

Shared Memory: 256 MB

Current Mode: 1024 x 768 (32 bit) (60Hz)

Monitor Name: Generic Non-PnP Monitor

Monitor Model: unknown

Monitor Id:

Native Mode: unknown

Output Type: HD15

Driver Name: igdumd64.dll

Driver File Version: 8.14.0010.1930 (English)

Driver Version:

DDI Version: 9Ex

Driver Model: WDDM 1.0

Driver Attributes: Final Retail

Driver Date/Size: 9/23/2009 19:22:58, 5472256 bytes

WHQL Logo'd: Yes

WHQL Date Stamp:

Device Identifier: {D7B78E66-6432-11CF-BCE4-0DF6A3C2C535}



Ashok, thanks for the information.

The current BIOS version of your board is 0050. There are 7 newer versions that we can try to install in order to find out if this could solve the issue.


It is important to tell you that going straight to the latest version shouldn't be a problem, technically speaking. However based on experience, there is always chance.


I would recommend you to install the at least 3 BIOS version and then check if the behavior persisted.


You can also check the BIOS Update Release Notes at this URL. You will be able to see the fixes and features included on each version.

These are some important versions you could flash on your system.

We provide an application that is called Intel® Processor Diagnostics Tool. You can run this application and it will diagnose the processor components and will generate a result. I suggest you running this in to discard any possible issues with the processor (hardware).

Please use minimum configuration while running this test

You can get this from the following link:

If operating system is 32 bit based: Intel® Download Center

If operating system is 64 bit based: Intel® Download Center