I bought two new Xeon 2800 GHz dual core, to install in a Dell Power Edge 2850 server that was equipped with two single core processors at 3.6 Ghz, but when I start the system bios sees only 01 dual-core processor installed, why do not you see the other?

The motherboard for the dc7600 has an Intel LGA775 processor socket. However, not all LGA775 processors are compatible with the motherboard. For the small form factor, the following CPUs are supported: Intel Celeron D Processors:
Intel Celeron D 331 Processor (2.66-GHz, 256K L2 cache, 533-MHz FSB) , Intel Celeron D 336 Processor (2.80-GHz, 256K L2 cache, 533-MHz FSB) , Intel Celeron D 346 Processor (3.06-GHz, 256K L2 cache, 533-MHz FSB)
Intel Pentium 4 Processors with HT Technology:
Intel Pentium 4 521 Processor (2.8-GHz, 1-MB L2 cache, 800-MHz FSB) , Intel Pentium 4 524 Processor (3.06-GHz, 1-MB L2 cache, 533-MHz FSB) , Intel Pentium 4 541 Processor (3.2-GHz, 1-MB L2 cache, 800-MHz FSB), Intel Pentium 4 620 Processor (2.8-GHz, 2-MB L2 cache, 800-MHz FSB), Intel Pentium 4 630 Processor (3.0-GHz, 2-MB L2 cache, 800-MHz FSB), Intel Pentium 4 631 Processor (3.0-GHz, 2-MB L2 cache, 800-MHz FSB), Intel Pentium 4 640 Processor (3.2-GHz, 2-MB L2 cache, 800-MHz FSB), Intel Pentium 4 641 Processor (3.2-GHz, 2-MB L2 cache, 800-MHz FSB), Intel Pentium 4 650 Processor (3.4-GHz, 2-MB L2 cache, 800-MHz FSB), Intel Pentium 4 651 Processor (3.4-GHz, 2-MB L2 cache, 800-MHz FSB), Intel Pentium 4 661 Processor (3.6-GHz, 2-MB L2 cache, 800-MHz FSB) or
Intel Pentium D Dual Core Processors:
Intel Pentium D 805 Dual Core Processor (2.66-GHz, 2x1MB L2 cache, 533-MHz FSB), Intel Pentium D 820 Dual Core Processor (2.8-GHz, 2x1MB L2 cache, 800-MHz FSB), Intel Pentium D 915 Dual Core Processor (2.8-GHz, 2x2MB L2 cache, 800-MHz FSB), Intel Pentium D 925 Dual Core Processor (3.0-GHz, 2x2MB L2 cache, 800-MHz FSB), Intel Pentium D 930 Dual Core Processor (3.0-GHz, 2x2MB L2 cache, 800-MHz FSB), Intel Pentium D 940 Dual Core Processor (3.2-GHz, 2x2MB L2 cache, 800-MHz FSB), Intel Pentium D 945 Dual Core Processor (3.4-GHz, 2x2MB L2 cache, 800-MHz FSB), Intel Pentium D 950 Dual Core Processor (3.4-GHz, 2x2MB L2 cache, 800 MHz FSB)

Unfortunately, these are old processors and I don't see any available new. Newegg.com lists a couple available as refurbished. You may be better off getting a new computer with either a Intel I3 or current AMD processor.

I wish that I had better news for you.

Cindy Wells
(do not attempt to use a CPU that your motherboard doesn't support. It probably won't boot.)

The socket type of ACER G45T/G43T - AM3 V1.1 motherboard is LGA 775. Here are the compatible processors you can use for this motherboard :
Intel Pentium 4 (2.60 - 3.80 GHz)
Intel Celeron D (2.53 - 3.60 GHz )
Intel Pentium 4 Extreme Edition
(3.20 - 3.73 GHz)
Intel Pentium D (2.66 - 3.60 GHz)
Pentium Extreme Edition
(3.20 - 3.73 GHz)
Pentium Dual-Core (1.40 - 3.33 GHz)
Intel Core 2 Duo (1.60 - 3.33 GHz)
Intel Core 2 Extreme (2.66 - 3.20 GHz)
Intel Core 2 Quad (2.33 - 3.00 GHz)
Intel Xeon (1.86-3.40 GHz)
Intel Celeron (1.60 - 2.40 GHz)

The Acer Aspire L320 can take 3 different processors

1. Intel Core 2 Duo

Dual Core chip with speeds from 1.8Ghz to 3.3 Ghz

2. Intel Celeron D

Dual Core chip with speeds from 1.6Ghz to 2.7Ghz

3. Intel Pentium 4

Single core chip with speeds from 1.3Ghz to 3.8Ghz

The Core 2 Duo 3.3 Ghz is the most expensive and Pentium 4 1.3 Ghz the cheapest.

Some more information is available on the Intel website, links are below:

http://www.intel.com/products/processor/core2duo/mobile/index.htm
http://www.intel.com/products/processor/pentium_dual-core/specs.htm


Hope this helps. Thanks for using Fixya.

I suggest this to you.
Intel Xeon Processor, 1.4 GHz/100.0K
Intel Xeon Processor, 1.5 GHz/100.0K
Intel Xeon Processor, 1.7 GHz/100.0K
Intel Xeon Processor, 2.0 GHz/100.0K, L3
Intel Xeon Processor, 2.2 GHz
Intel Xeon Processor, 2.6 GHz/400
Processor, 1.8 GHz, 603FCPGA
Processor, 2.0 GHz, 603FCPGA
Processor, 2.2 GHz, 603FCPGA
Processor, PRST, 2.4 GHz/400, INT 261668-004 284645-001 source: ftp://ftp.compaq.com/pub/supportinformation/technotes/evo_w6000_workstation_rev6_us.pdf

Depends on the socket type.. Socket 423 and 478 do not support core duo or quad core processor types. However, if you have LGA 775 (aka socket T) your motherboard will support the following:
Intel Pentium 4 (2.60 - 3.80 GHz)
Intel Celeron D (2.53 - 3.60 GHz )
Intel Pentium 4 Extreme Edition (3.20 - 3.73 GHz)
Intel Pentium D (2.66 - 3.60 GHz)
Pentium Extreme Edition (3.20 - 3.73 GHz)
Pentium Dual-Core (1.40 - 3.33 GHz)
Intel Core 2 Duo (1.60 - 3.33 GHz)
Intel Core 2 Extreme (2.66 - 3.20 GHz)
Intel Core 2 Quad (2.33 - 3.00 GHz)
Intel Xeon (1.86-3.40 GHz)
Intel Celeron (1.60 - 2.40 GHz)

I don't understand the beep code you describe, but the 2850 has many beep codes to help understand what is going on.

First ... Identify the beep. Does the beep start as soon as you power it on, or after several seconds? What is the pattern of the beep - is it a repeating set of beeps - 3 sets of beeps between 1 and 4 beeps ... like 1 beep-3 beeps-2 beeps, or 3 beeps, 3 beeps, 1 beep? Or is it a steady repeating beep - about once per second?

Second ... is the LCD panel on the server blue or orange? If orange, what is the error code(s) it is scrolling?

If it is a steady, once-per-second beep, it is probably your RAID controller. Does the system boot to Windows/OS ok? If so, use (or install) OpenManage Server Administrator (Managed Node from Dell's Support Site) to check the Hardware Logs and check the RAID array (under Storage/Virtual Disks). If it is not booting to the OS, then go into CTRL-M to see what the status of your array is.

You can also use any other intel 775 socket processor as well. The dual cores are at the top of the list for performance that are compatible with that board, but if you're looking for a cheaper solution, I have that board with a 3GHz pentium 4 and it runs great. Here's a list of all the processors you can use.
Intel Pentium 4 (2.66 - 3.80 GHz)
Intel Celeron D (2.53 - 3.60 GHz )
Intel Pentium 4 Extreme Edition
(3.20 - 3.73 GHz)
Intel Pentium D (2.66 - 3.60 GHz)
Intel Pentium Extreme Edition
(3.20 - 3.73 GHz)
Pentium Dual-Core (1.40 - 2.80 GHz)
Intel Core 2 Duo (1.60 - 3.33 GHz)
Intel Core 2 Extreme (2.66 - 3.20 GHz)
Intel Core 2 Quad (2.33 - 3.00 GHz)
Intel Xeon (1.86-3.40 GHz)
Intel 'Core' Celeron (1.60 - 2.40 GHz)

yes you can upgrade it to dual core.

It supports Intel Xeon processors.socket 940 i think.xeon cpu`s @ 1.8 Ghz or 2.40 Ghz with fsb 400 Mhz,and L2 cache 512 kb

Try using a different graphics card or make sure that you even have one installed in your computer. If no display is present on boot up, then your graphics card might be corrupt.