Optiplex GX270 New CPU, won't boot

Hi Laura,

Dell has tested Optiplex GX270 with Intel P4 & Celeron Processors (Northwood & Prescott). Optiplex GX 270 was shipped with Intel 865G Chipset. For more information on this, you may refer to link: http://intel.ly/13RbQLR  

Click on compatible products and you would find the list of the compatible processors. Dell does not recommend or offer processor upgrade but it is as your discretion in case you really wish to go  ahead with it. Warranty per say, issues arising due to the upgrade will not be covered under warranty , however we will continue providing support for other issues and parts.  

There is a difference of Lithography, Core temperature, Voltage and Max TDP (P4 2.40 GHz processor and P4 3.0 GHz processor). You may try installing the processor shipped with computer and see if you face any issues with it. You may refer to service manual for detailed information on reseating processor: 

ftp://ftp.dell.com/Manuals/all-products/esuprt_desktop/esuprt_optiplex_desktop/optiplex-gx270_service%20manual_en-us.pdf

Copy and paste the link in address bar and hit Enter. Please ensure to follow safety instructions mentioned in manual. 

There are diagnostic LED's on the back of system tower, you may also check the status of that. They are helpful in isolating the cause of failure. You may check an image below:

I bought it off E-bay, here's the link

www.ebay.com/.../380572202216

I have a dell optiplex gx270 SMT with a socket 478 P4 2.40 GHz processor. I decided to upgrade it and bought a P4 3.0 CPU installed it now the tower won't boot. I have a steady amber light with no beeps. It should be compatible with the motherboard. and my BIOS is up to date, version A07.

You should always update BIOS BEFORE Changing CPU.The

Socket 478, 3.06/533/512k Northwood is the fastest processor you can use for the Optiplex 270.

A search for "Intel 865G chipset" "supported processors"
on Intel's site produces a board with a similar description:
 Support for an Intel® Pentium® 4 processor in an mPGA478
socket with a 400/533 MHz system bus

SL7PM is a Hyper threaded Prescott CPU.

Type CPU / Microprocessor

Family Intel Pentium 4

Part number RK80546PG0801M

BX80546PG3000E

Processor markings 3.00GHZ/1M/800

Frequency (GHz) 3

Bus speed (MHz)  ? 800

Clock multiplier  ? 15

Package type 478-pin FC-mPGA4

Socket type Socket 478 (mPGA478B)

Architecture / Microarchitecture / Other

CPUID 0F41h

Core stepping E0

Processor core Prescott

Manufacturing technology (micron) 0.09

L2 cache size (KB)  ? 1024

Features Hyper-Threading technology

Core voltage (V)  ? 1.287 - 1.4

Case temperature (°C)  ? 69.1

Name     Intel Pentium 4 3.06GHz
Technical Specifications
CPU Socket Type     Socket 478
Core     Northwood
Operating Frequency     3.06GHz
FSB     533MHz
L2 Cache     512KB
Manufacturing Process     0.13µm
Thermal Design Power     81.8.4W
Thermal Specification     69°C
Hyper Threading     Yes
Instruction set     MMX, SSE, SSE2
Voltage     1.55V

Model  Processor Type     Desktop Series     Pentium 4
sSpec Number(s)     

SL6K7
SL6PG
SL6QC
SL6S5
SL6SM
SL6JJ
SL6NN
Product Order Code(s)     

RK80532PE083512
BX80532PE3066D

I don't  know how to find the spec number for the P4 3.0 ghz

Yes. The computer boots after reinstalling the 2.40 GHz CPU

NORTHWOOD's that work.

SL6K7
SL6PG
SL6QC
SL6S5
SL6SM
SL6JJ
SL6NN
Product Order Code(s)     

RK80532PE083512
BX80532PE3066D

Here's one of the CPUs Speedstep listed for $13 including shipping.

Bev makes an excellent point: if the machine boots with the original CPU and not the new one, the new one is either defective or incompatible.

Thanks for your help.  I reinstalled my working cpu, and sent the other one back .  It fit but wasnt compatible

I replaced a P4 2.6 GHz processor in a Dell Optiplex GX270 with a P4 3.2 GHz processor that I removed from a Dell Optiplex GX 270 with blown capicators.  The BIOS was Version A6.

After installing the P4 3.2 the computer would not boot.  I then re-installed the original processor and the computer still will not boot.  The diagnostic lights on the back of the Optiplex 270 are all off.

Any suggestions would be greatly appreciated.

EGibbs

If the power button light is lite, what is the colour and is it blinking, or solid?

Bev.

FYI, I just upgraded to a P-4 2.8 ghz Northwood SL6WJ in a desktop GX270 and it works great. I was given the processor and took a chance on it working. It also has Hyper-threading which I enabled :emotion-2: