Hay dear plz tell me witch ram supprot

Most of the time you'll need to change a setting in the BIOS to force the computer to recognize the PCI slot first. Try going through your BIOS settings until you find it. It should be something like "Display First" or Primary, and it should be set to onboard graphics. Try changing that to PCI and see if that fixes your problem.

http://www.intel.com/p/en_US/support/highlights/server/se7501br2/

This motherboard can support up to 2Gb of DDR266 RAM modules.

Attached is part of the memory detail from the manual.

If you need a copy of the manual. please click on this link to download :-

ftp://serwery.optimus.pl/Servers/Motherboards/SE7501BR2/Dokumenty/se7501br2tps.pdf

3.1.2.2 Memory Configuration

Memory interface between the MCH and DIMMs is 144 bits wide. This requires that two DIMMs

be populated per bank in order for the system to operate. At least one bank has to be populated

in order for the system to boot. If additional banks have less than two DIMMs, the memory for

that bank(s) will not be available to the system.

There are two banks of DIMMs, labeled Bank1 and Bank2. Bank1 contains DIMM locations

DIMM1A and DIMM1B and Bank2 contains DIMM2A and DIMM2B. DIMM socket identifiers are

marked with silk screen next to each DIMM socket on the baseboard. The sockets associated

with any given bank are located next to each other.

The baseboard's signal integrity is optimized when memory banks are populated in order.

Therefore, DIMM Bank1 must be populated before Bank2.

DIMM and memory configurations must adhere to the following:

• DDR266 DDR registered DIMM modules

• DIMM organization: x72 ECC

• Pin count: 184

• DIMM capacity: 128 MB, 256 MB, 512 MB, 1 GB, 2 GB

• Serial PD: JEDEC Rev 2.0

• Voltage options: 2.5 V (VDD/VDDQ)

• Interface: SSTL2

• Two DIMMs must be populated in a bank for a 144-bit wide memory data path

• One or two memory banks may be populated

Table 2. Memory Bank Labels

Memory DIMM Bank Row

J8D22 (DIMM 1A), J8D15 (DIMM 1B) 1 0, 1

J8D7 (DIMM 2A), J8D1 (DIMM 2B) 2 2, 3

Note: Memory must be installed in pairs; DIMM Bank1 must be populated before DIMM Bank2.

Memory within a DIMM bank must be identical; between banks only the DIMM size may be

different.

Functional Architecture Intel® Server Board SE7501BR2 Technical Product Specification

26 Revision 1.2

Intel Order Number C13977-003

Figure 3. Memory Bank Label Definition

The power-supply is producing several different voltages.
However, one of the voltages that it is producing is *NOT* within the "normal" range of voltages, and so you get the error-message.

Replace the power-supply.

did you connect the internal speaker to listen to the bootup beep code?

have memory and hard drive with an op sys

PDF available here

http://www.intel.com/support/motherboards/server/se7501br2/sb/cs-007202.htm

TRY ANOTHER RAM CARD OR TRY OTHER SOCKET

Nope, just goto bios menu and look for line First Boot Device then select CDROM, or scroll to have CDROm in the selected first boot device.

no RAM is getting detected.

change the RAm and try