Need RAM .Please Help

Greetings. I need RAM and I am not sure how much I can put in and what type is optimal.I would like as much as possible.

Here is my Sandra

Computer

Model : HP Z800 Workstation 103C_53335X

Serial Number : 2UA03*****

Chassis : HP Mini Tower

Mainboard : HP 0AECh

Serial Number : 2UA03*****

BIOS : HP 786G5 v03.10 07/09/2010

Total Memory : 3.36GB ECC DIMM DDR3



Processors

Processor : Intel(R) Xeon(R) CPU X5570 @ 2.93GHz (4C 3GHz/3.33GHz, 2.66GHz IMC, 4x 256kB L2, 8MB L3)

Socket/Slot : FC LGA1366



Chipset

Memory Controller : HP 5520 (Tylersburg-36D) I/O Hub 2x 3.19GHz (6.38GHz)

Memory Controller : HP Xeon (Nehalem) UnCore 2x 3.19GHz (6.38GHz), 3x 1GB ECC DIMM DDR3 1.33GHz 192-bit

Memory Controller : HP Xeon (Nehalem) UnCore 2x 3.19GHz (6.38GHz), 3x 1GB ECC DIMM DDR3 1.33GHz 192-bit



Memory Module(s)

Memory Module : Freescale (Motorola) M391B2873FH0-CH9 1GB DIMM DDR3 PC3-10700U DDR3-1332

Memory Module : Freescale (Motorola) M391B2873FH0-CH9 1GB DIMM DDR3 PC3-10700U DDR3-1332

Memory Module : Freescale (Motorola) M391B2873FH0-CH9 1GB DIMM DDR3 PC3-10700U DDR3-1332

Memory Module : Freescale (Motorola) M391B2873FH0-CH9 1GB DIMM DDR3 PC3-10700U DDR3-1332

Memory Module : Freescale (Motorola) M391B2873FH0-CH9 1GB DIMM DDR3 PC3-10700U DDR3-1332

Memory Module : Freescale (Motorola) M391B2873FH0-CH9 1GB DIMM DDR3 PC3-10700U DDR3-1332



Video System

Monitor/Panel : Panasonic-TV

(1920x540, 37.9")

Video Adapter : NVIDIA Quadro FX 1800 (8CU 64SP SM4.0 1.4GHz, 768MB DDR3 1.6GHz 192-bit, PCIe 2.00 x16)



Graphics Processor

OpenCL GP Processor : NVIDIA Quadro FX 1800 (64SP 8C 1.4GHz, 768MB DDR3 1.6GHz 192-bit)

Compute Shader Processor : NVIDIA Quadro FX 1800 (64SP 8C 1.4GHz, 768MB DDR3 1.6GHz 192-bit)

CUDA GP Processor : NVIDIA Quadro FX 1800 (64SP 8C 1.4GHz, 768MB DDR3 1.6GHz 192-bit)



Storage Devices

WDC WD3200AAJS-60Z0A0 (320.1GB, SATA300, 3.5", 7200rpm, 8MB Cache) : 298GB (C:)

Seagate ST3120026AS (120GB, SATA150, 3.5", 8MB Cache) : 112GB (D:)

Seagate ST3120026AS (120GB, SATA150, 3.5", 8MB Cache) : 112GB (E:)

Hitachi HDS722020ALA330 (2TB, SATA300, 3.5", 7200rpm, 29MB Cache) : 2TB (G:)

Seagate FreeAgent Pro (1TB, USB2) : 932GB (I:)

hp DVD A DH16AAL (SATA150, DVD+-RW, CD-RW, 2MB Cache) : N/A (F:)



Logical Storage Devices

Hard Disk (C:) : 298GB (NTFS) @ WDC WD3200AAJS-60Z0A0 (320.1GB, SATA300, 3.5", 7200rpm, 8MB Cache)

Hard Disk (D:) : 112GB (NTFS) @ Seagate ST3120026AS (120GB, SATA150, 3.5", 8MB Cache)

120gb (E:) : 112GB (NTFS) @ Seagate ST3120026AS (120GB, SATA150, 3.5", 8MB Cache)

PT2012 (G:) : 2TB (NTFS) @ Hitachi HDS722020ALA330 (2TB, SATA300, 3.5", 7200rpm, 29MB Cache)

FreeAgent (I:) : 932GB (NTFS) @ Seagate FreeAgent Pro (1TB, USB2)

Optical Drive (F:) : N/A @ hp DVD A DH16AAL (SATA150, DVD+-RW, CD-RW, 2MB Cache)



Peripherals

LPC Hub Controller 1 : HP LPC Interface Controller

LPC Legacy Controller 1 : SMSC SCH5317-B

Audio Device : HP HD Audio Controller

Audio Device : AVID Tech Avid HDX

Serial Port(s) : 1

Disk Controller : HP ICH8R (ICH8) SATA RAID Controller

Disk Controller : HP SAS 3000 series, 8-port with 1068E -StorPort

USB Controller 1 : HP USB UHCI Controller #4

USB Controller 2 : HP USB UHCI Controller #5

USB Controller 3 : HP USB UHCI Controller #6

USB Controller 4 : HP USB EHCI Controller #2

USB Controller 5 : HP USB UHCI Controller #1

USB Controller 6 : HP USB UHCI Controller #2

USB Controller 7 : HP USB UHCI Controller #3

USB Controller 8 : HP USB EHCI Controller #1

FireWire/1394 Controller 1 : ADS Technologies XIO2213A PCI Express to 1394b OHCI with 3-Port PHY

FireWire/1394 Controller 2 : HP FW322/323 IEEE1394 OHCI FireWire Controller

SMBus/i2c Controller 1 : Intel ICH SMBus



Printers and Faxes

Printer : Microsoft XPS Document Writer (600x600, Colour)

Printer : HP Photosmart 7520 series (600x600, Colour)

Printer : HP Officejet 5600 series fax (200x200, USB, Colour)

Printer : HP Officejet 5600 series (1200x1200, USB, Colour)

Fax : Microsoft Shared Fax Driver (200x200)



Scanners and Cameras

Scanner : Microsoft HPBDDAE0 (HP Photosmart 7520 series) (Scanner, USB)



Network Services

Network Adapter : Broadcom NetXtreme Gigabit Ethernet (Ethernet, 100Mbps)

Network Adapter : Broadcom NetXtreme Gigabit Ethernet #2 (Ethernet, 100Mbps)



Operating System

Windows System : Microsoft Windows 7 Home 6.01.7601 (Service Pack 1)

Platform Compliance : x86



Windows Experience Index

Current System : 5.9