CPU. Buy system specific Dell OptiPlex 755 DT/MT/SFF Desktop Memory/RAM and SSD upgrades from KingstonMemoryShop. Mini Tower Computer Specifications Microprocessor Microprocessor type The following are supported: ® • Intel Core™2 • Intel vPro™ ® • Intel Celeron Internal cache L1. Specifications of OptiPlex 5000 Small Form Factor. Are you looking for the user's guide of your OptiPlex 755 desktop computer? Download this PDF file to learn how to set up, use, troubleshoot, and maintain your device. . Hold. flexibility, including a diskless option to support flexible computing. As the Optiplex 755 MT has an open back panel, a power supply with or without the on/off switch can be installed. 25-inch drive bay 3 3. The posted ASUS card has been verified working in all models except USFF. Dell OptiPlex 7000 7010 Desktop Computer - Intel Core i5 13th Gen i5-13500 Tetradeca-core (14 Core) 2. Hello I am looking to get a gpu for my Dell optiplexx 755(MT) with: core 2 duo 2. Optiplex's 755, 790, 7010. 00 GHz, 1 MB L2 Cache or Up. Works in ALL 755 models. Supported Operating Systems. jcastyo. $1,199. User Guide - DellThe OptiPlex 755 costs about the same as the HP dc7800, which has a faster processor but only 1GB of RAM and a smaller, single 80GB hard drive. Featuring best-in-class triple SSD storage. 22-04-2013 09:00 AM. Reviews. LXun Upgraded New L305P-03 305W Power Supply Replacement PSU Compatible with Dell Optiplex 740 745 755 760 780 960 980 MT Mini-Tower M177R H305P-02 PS-6311-5DF-LF. It has a Core 2 Quad q6600 CPU in it, with 2 gigs of ram, and a 275w psu. OptiPlex 3040; OptiPlex 3046; OptiPlex 3050; OptiPlex 3050 All-in-One; OptiPlex 3060; OptiPlex 3070The Q9650 has 4 cores versus the E8600's 2-- as well, it has twice the cache (12MB vs 6MB), both fit the LGA775 socket, and the Q9560 can be overclocked. Description. The Optiplex 755 Mini Tower does not use a Dell proprietary power supply, you can install most standard ATX power supplies with a 24-pin or 20+4-pin main motherboard power connector. collections, displays, models, styles, scales, specifications, reviews. NOTICE: When replacing the processor, do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket. At the technical guide (thank's for link to SpeedStep) I didn't find any information about supported max bus clock (MHz) of RAM. I'm running one in my Optiplex 380 . It has a 275W power supply, 8GB of RAM at 800mhz, BIOS updated to A22, 500GB of SATA Hard Drive and has a Core 2 Quad Q8400 processor at 2. If you are going used, don't buy ancient then upgrade. And this is my System Information. good day! I have a DELL optiplex 755 SFF PC. 40GHz,2X4M 1066FSB. View PDF. The configuration Dell provides comes with a 1. Intel Core2 Duo. 23, 2007 at 1:00 p. PSU: Corsair CX750M (750 watt power supply) CPU: Intel Core 2 Duo E6750 @ 2. Optiplex 755 specs: Old system specs: C2D 6850 P4 HT 3GHz (actually 2. These indicators can be audible beeps, power buttons that display different states and colors, specific diagnostic LEDs, or a combination of these. (example: DDR3L) DDR3 is not backward-compatible with DDR2. Questions: 1) In 2014, am I still limited to WD or Samsung?OPTIPLEX-755 Computer from DELL 2-Year Warranty, Radwell Repairs - COMPUTER DESKTOP W/INTEL PROCESSOR. So I'm wondering if I need a new power supply or additional data and/or power cables. 40GHz, 2400 Mhz, 2 Core (s), 2 Logical Processor (s) BIOS Version/Date Dell Inc. 42 in. 0 GB or 120. 0. Height 324. 5 inches) Width 39. robust MainstrEaM DEsktop DEsignED to MEEt your nEEDs , now anD in thE futurE The new Dell OptiPlex 755 offers a compelling, versatile solution that can help you meet evolving business needs with the right technologies and services. Laptops, desktops, gaming pcs, monitors, workstations & servers. Thanks to Dell’s innovative approach to scalable remote client management, the OptiPlex 755 offers you a choice between several systems-management options. Advanced Search; Global Parts Search;. The Dell OptiPlex 755 gives you advanced security options to help keep your data secure real-time. In trying to do a clean reinstall of Win 7 Pro on an old Dell Optiplex 755, now equipped with a brand new 1 TB Western Digital SATA HD following the original SATA HD's failure, using the same media that was used for the original installation, the installation stalls and calls for a signed HD driver. EFFECTIVE DATE: July 1, 2009 . And because we know data security is a vital concern, the OptiPlex 755 offers optional RAID 1 support for real-time data-mirroring protection. BIOS. 8GHz Intel Celeron 430 n/a Serial ATA. To. 02-04-2008 12:00 PM. G. Thanks to Dells innovative approach to scalable remote client management, the. No aftermarket coolers, or cases are made for it. 60 GHz, 4 MB L2 Cache or 1-core intel Pentium 4 531, 3. 5 inches) Width 39. The MT case can take full height cards, The DT and SFF require low profile. Based on the specs sheet for the Dell Optiplex 755 and the Brochure for the Dell Optiplex 760, neither lists any Xeon processor as. Submit Search. Dell Optiplex 745. In reference to processor upgrade, Dell has only tested Optiplex 755 with the Intel Core2 Quad, Core2 Duo, Intel Pentium dual-core, Intel Celeron processors based on Intel's 775-pin (LGA775) socket. Top LTT Forum reaction giver/recipient 2022Specs. For 4GB, the best option is a 2x2GB matched pair, but the Mobo may not except 2GB RAM sticks. 0. 3, Build 9600) (9600. Documentation. Shop Online . Running XP but switching over Linux, mostly Fedora 18. 2 DDR3 and 2 DDR2, and im looking to upgrade to 8gb of ram. 5 Sustainable. Kingston high quality Dell OptiPlex 755 DT/MT/SFF Desktop upgrades. 0 GHz, 12 MB Cache. dell. 25-inch drive bay 2 5. 66Ghz, 95w and 1333mhz bus speed. intel core 2 duo E7300 2. alainsaintpierr. Processor: Up to 4-core Intel Core 2 Quad Q9650, 3. Intel Q35 Express Chipset. $34. this blocks the PCIe and ADD2 options. Get a 4x2GB DDR2-800 RAM kit. OPTIPLEX Spec Sheet 7000 Sustainability on OptiPlex OptiPlex is a leading platform for sustainable innovation and utilizes the most recycled content of all Dell PCs with up to 60% recycled plastic and closed-loop materials in its design. The upgraded system was a Dell 755 MT. the Intel LGA775 cooler is only good for motherboard with sqaure 72 x 72 mm clear mounting holes so the pin can be pushed through those holes and be retained by reexpansion of plastic peg. newegg. It's on the list here. Beyond just RAID support, the system offers proactive security features from vPro, and advanced remote management capabilities. #7 by Tesla1856 I believe is referring to: There is no 256 GB SSD limit listed for the Optiplex 755, as the manual doesn't refer to any SSD's or capacities. 00GB Dual-Channel DDR2 @ 398MHz (6-6-6-18) Motherboard Dell Inc. 11798. 7040 OptiPlex Motherboard Specs. Please call or email us with your request. There are NO DRIVERS for the onboard INTEL Graphics and WIN98 SE DOES NOT UNDERSTAND AHCI. Design 1st OptiPlex was the first Dell product made with recycled materials in 2007. Dell Optiplex 755 Tower Computer, 2. The configuration Dell provides comes with a 1. 3 . )Hi, I have an Optiplex 755, Desktop model (2nd largest) and it's struggling to play YouTube and BBC iPlayer video, especially in HD. Hi cutlassvillager1, The differences are fairly minor. another way to find out is to type in your 755 service tag on Dell support site and view product spec. 8GHz Intel Celeron 430 n/a Serial ATA RAID, Ultra ATA/100 PCI/PCI Express 1x / 16x 80. Publish date: 20 APR 2008. If a 256 GB SSD limit seems strange as it's not "250 GB," that's straight from the spec. DELL™ OPTIPLEX™ 755 Specifications. Replaced a L305P-01 (305W) PS and upgraded the memory to 4Gb. 0. OptiPlex Desktops & All-in-Ones. Those issues are well discussed and verified for over 14. This also assumes a 64-bit operating system. RAM 16. Appuyez sur <Ctrl -3!SRXUDFFpGHUjODFRQILJXUDWLRQGHO LQWHUIDFH0(%[HWSRXUHQWUHUYRWUHPRWGHSDVVH 2. if you really want to stick with the 755 tower case, you need to cut/mod. Optiplex manualsbrain manualslib Dell optiplex 755 user manual Dell optiplex Dell optiplex 7010 dt vs. The 5770 usually has a dual-slot cooler and dual-slot backplate, meaning that the card will not fit into the case. 1/10/Linux The ASUS GT740-2GD3-CSM 2GB is a 75W card so it does not need an AUX power connection and works fine with 305W Tower power supply. Power your success: See what you can accomplish with the latest AMD® Ryzen PRO™ CPUs. If a 256 GB SSD limit seems strange as it's not "250 GB," that's straight from the spec. 5. OptiPlex 790 OptiPlex 790 Technical Specifications Processors1 Intel® 2nd Generation Core™ i7, i5, i3 Processors. Posted: Mar 13, 2019. OptiPlex 760. Top Solutions. To get the max out of my 755 MT: CPU = C2Q Q9650; RAM = 8GB; OS is on a Crucial SSD. Dell OptiPlex 755, like many other OptiPlex in this era, uses BTX standard (Inverted ATX), so no ATX and ITX family motherboards (even Micro ATX or Mini ITX) will FIT! Max RAM is 8GB (4x2GB). 4. View PDF. these are inexpensive low level discrete video card that is a bit better than GMA3100 of Q35 chipset (c2D E4600 does not have integrated graphics). 8GHz) Memory Warranty. Where to buy. Dell OptiPlex computers have a long history of integrated diagnostic indicators that provide important insight when a computer fails the Power On Self-Test ( POST). ÷ Dell Client Manager (DCM) ò $ Dell Client Manager (DCM) ò $ Dell Client Manager (DCM) '. User Guide - Dell Dell Optiplex 755 Specs Graphics Card: Intel GMA 3100: Operating System: Microsoft Windows Vista Business: Optical Drive: DVD+/-RW (Plus Minus) Processor: Intel Core 2 Duo E4500: Processor Speed: 2. Optiplex xe3. Was: $19. Specs: DDR2 PC2-8500 • CL=7 • Unbuffered • NON-ECC • DDR2-1066 • 1. Dell Part Number: 0GM819 GM819 JR271. Yes the machine is a good Deal IMHO. Lifetime Warranty. Model Specifications 257,850 Dell Upgrades Supplied. Buy Memory RAM Upgrades for your Dell Optiplex 755 [Mini-Tower] - 100% Compatibility Guaranteed. windows 7 64-bit. com . Radeon HD 7730 -- an even more cut-down version of the same chip that powers the Radeon HD 7770 and 7750. Thanks to Dell’s innovative approach to scalable remote client management, the OptiPlex 755 offers you a choice between several systems-management options. I have an Optiplex 755 sff with the q6600 in it and Im thinking about buying a mini tower 755 with the q6600 also. I'm going to buy my first Dell computer, which is a Dell Optiplex 755 Small Form Factor. dell. 128MB ATI Radeon X1300* with DVI and TV Out. 7 inches) Depth 35. Original Equipment Manufacturers and Retailers alike can confidently rely on Dell’s OptiPlex XE desktop quality to embed into their brand of business. Notes, Notices, and Cautions. GPU - NVIDIA GT 240. DEtaiLED EnginEEring spEcifications System Dimensions (Physical) 26 System Level Environmental and Operating Conditions 27 Power 28 Audio 29 Hard Drives 30 Optical. version 1. Datum vydání: 20 DUB 2008. 00GHz Conroe 65nm Technology RAM 4. 00 mm (14. cmariategui. My desktop is an Optiplex 755 and it has 4 gigs of memory and running on Windows XP. Search Product. On the laptop range screens are typically smaller and XPS Q S GV represents a 1S " screen. I use Ubuntu 10. Other Features: Hyper-Threading Technology Support. Apr 22, 2009 43,160 4091. Below memory compatibility will be DDR3 unless stated otherwise. The motherboard specs says there is a second fan power exit (pdf specs at page 7, component 9) but on my mb i. The table below lists Dell OptiPlex computers that have been tested with Windows 10 Anniversary Update. i am looking to do an upgrade on my dads 755 and my specs are : CPU - Intel Core2 Duo E6550 @ 2. Dell Part# PU052 0PU052 JR269 0JR269 - Featuring Intel LGA775. Vedeți fișierul PDF. 0 connectors (2) 5 LAN indicator light 6 diagnostic lights 7 power button 8 power light 9 hard drive activity light 10 headphone connector 11 microphone connector Mini towEr coMputEr (Mt) viEw back view 1 card. check out Dell recommended gpu in 755 technical guide. nvidia geforce 8400gs. Get drivers and downloads for your Dell OptiPlex 755. The line includes four unique designs: a large “Desktop” computer, a slightly thinner “Mini-Tower” style, a “Small Form Factor” (SFF) size, and a tiny “Ultra Small Form Factor” (USFF) design. Optical drives, Ethernet, and front and back USB ports/audio jacks come standard as well, all of which makes the Dell Optiplex 755 a powerful, affordable space-saver. Thanks to Dells innovative approach to scalable remote client management, the. Responses(2) fireberd. Starting its run in 1996, the OptiPlex models have been a staple for many over the years. Add to Cart. Lifetime Warranty. Available in mini-tower, small form factor, and ultra-small form factor, this particular desktop features plenty of space-conscious options. Processor: Up to 2-core Intel Celeron 3300, 2. View PDF. 00. SAVE 10% WITH CODE. Photos for illustrative purposes only - actual items may differ from photo. Data Security and Recovery with RAID 1 support ensures real time redundancy for data - helping to keep your business. Configuration ID: CT12826412. mcquigar. 10 A22. Core2 Duo E8400 Intel $22 Bench 40%, 68,540 samples. Submit Search. Height: Front height 290. Beyond just RAID support, the system offers proactive security features from vPro, and advanced remote management capabilities. Processor Intel (R) Core (TM)2 Duo CPU E4600 @ 2. It's desktop computing -- without compromise. 77. EDIT: Doublecheck the CPU. Drivers & Downloads. <ADMIN NOTE: Broken link has been removed from this post by Dell> It's not fancy, but it's a desktop intended for corporate users, so sound usually doesn't need to have super high standards/requirements. To the Internet media Store Visit Store. I picked up a dell optiplex 755 for very cheap and plan to upgrade the cpu to a Q9650 and also upgrade to 8 gb ram. . 35 V operation for memory. Specs. 04 and it worked really nice RAM upgraded to 2Gb,then 4Gb as a test Video upgraded by using an AGP video card 256Mb,3D (Unity,Cube3D works fine) HD 1 TbDell OpenManage Client Instrumentation . OptiPlex XE features a purpose-built design that solves the unique challenges of hot, dusty, small and enclosed spaces. dell. Search OptiPlex 755 Support Information. 5" SATA Hard Drive Western Digital WD1600AAJS) to have more space available since I think the stock 75GB isn't enough for me. Dell Optiplex 755 I am considering getting an Optiplex 755. Also I should add that my motherboard has 2 slot's where the graphics card should go. Publish date: 20. Tower (T) Small Form Factor (SFF) Micro Form Factor (MFF) Dimension. DDR2 PC2-5300 667MHz / PC2-6400 800MHz Non-ECC DIMM. This will up your preformance. Dell OptiPlex 5060 SFF. unfortunately not possible if you want to use the 755 MT case which is BTX and only accommodates BTX motherboard. 1/10/Linux Chipset. OptiPlex 755 desktop pdf manual download. but the graphic card need at least 300w. The CPUID# and wattage are in spec. The specs for Optiplex 755 Desktop comes in these configurations with a retail price tag. Hi, I am new here. KingstonMemoryShop stocks memory upgrades for your Dell OptiPlex 755 DT/MT/SFF Desktop to boost performance and capacity. Fits model(s): Dell Optiplex 755 760 SFF (small form factor only) Compatible part number(s): pu052 0pu052 wf810 jr269 Note: Please look at the picture(s) and check part number to make sure its compatible with your. Specifications: • Chipset: Radeon HD 3450. This page is specifically about the “small form factor” (SFF) version of the OptiPlex 760, which is the second to smallest size of the computer, only beaten in. 2GHz to 3. Officially, (according to the Dell Technical Guide Book for the Optiplex GX 755) the max CPU and RAM are: Intel Core 2 Quad Q6700 Processor (2. dzi Dell OpenManage Client Instrumentation mo *na znale (ü w przewodniku Dell OpenManage Client Instrumentation User's Guide (Przewodnik u*ytkownika narz dzi Dell OpenManage Client Instrumentation) dost pnym w witrynie pomocy technicznej firmy Dell pod adresem support. Dell OptiPlex 755 User's Guide Publish date: 20 APR 2008. Search OptiPlex 755 Support Information Find articles, manuals and more to help support your product. Dell The Dell OptiPlex 755 offers enhanced management and control with Intel ® vPro™ processor technology, allowing IT staff excellent flexibility, high efficiency and reduced desk-side troubleshooting. and I want to upgrade my RAM in case of use optimally FSB (MHz). 2: pull power cord from wall. BTW, some will tell you the page file will wear your drive faster, technically correct, practically irrelevant. Open the processor cover by sliding the release lever from under the center cover latch on the socket. Here are My PC Specs. 3ghz 8gb 250gb hdd windows 10Dell optiplex 7010 spec sheet User manual dell optiplex 7010 (englishDell optiplex power light manual desktop driver amber factor. )Newer versions do not run at max speed in old systems. 240GB 2. Dell cannot be responsible for errors in typography or photography. comDell Optiplex 755 Motherboard Specifications. hd radeon 6670 . 1 . I OWN A DELL OPTIPLEX 755 SFF AND MINI-TOWER AND BOTH ARE FULLY USING 16GB OF RAM. Un ordenador que tiene configurado el software Dell OpenManage Client Instrumentation en una red que utiliza IT Assistant es un ordenador gestionado. Was: $21. Intel® Core™ Processors. Dimensions and weight. 0. For example, on my previous 755, I had to update to A11, then A19 (if I remember right), before getting to A22 BIOS. What can we help you to find. 0Gb/s • 540 MB/s Read, 500 MB/s Write. it is energy-efficient with strong hardware that is meant to last for years. Be sure to update BIOS before you update your other stuff. Physical. Display Adapter: Intel (R) Q35 Express Chipset Family. Add the PCI RISER and install one or two Full height PCI Vid cards. It is currently running 64- bit Windows Professional OS, Service Pack 1. Top Solutions. Total Savings $1,149. 4 GHz CPU Socket Type - LGA 775/Socket T Multi-Core Technology - Dual-Core TDP - 95 W Cache Memory Installed Size - 4 MB Type - Advanced Transfer Cache. Dimensions and weight . My Optiplex 755 Specs: Dell Optiplex 755 WD 160GB SATA HD 6GB RAM Radeon 6450 (NVIDIA 9300 G98 based card definitely WILL NOT WORK!) ML Boot disk is Sandisk Cruzer 16GB BIOS settings AHCI Multi core on and vituralization technology on. To get the max out of my 755 MT: CPU = C2Q Q9650; RAM = 8GB; OS is on a Crucial SSD. Graphics: Intel HD Graphics 2000, or. I would be worried about damaging the motherboard, or graphics card, or at very least crashing the computer regularly. 0 Firmware update utility. )Let the OptiPlex 755 Do the Grunt Work The Dell Client Manager is a powerful console that enables you to take advantage of the advanced remote management capabilities for the OptiPlex 755. Table 1: Technical specifications of Dell OptiPlex 5000 Desktops. 9 inches) DESKTOP Hard Drive uses a BLUE Tray. Example:Solución a la "Falla Luz Naranja" optiplex 755. 5-inch internal SSD • SATA 6. Show More. 1. ARLBA L305P-01 NH493 305W Power Supply PSU Replacement for Dell Optiplex 360 380 580 745 755 760 780 960 MT Mini Tower N305P-06 PS-6311-5DF-LF MH595 XK215 P192M JH994 C248C PW114 MK9GY X8129 F305P-00. OptiPlex Desktop Computers - OptiPlex business desktop computers offer space-saving features, advanced security, manageability and are a choice for everyday commercial. OptiPlex 780 OptiPlex 780 Technical Specifications Processor Options1 Intel® Core™2 Quad (not available on USFF); Intel® Core™2 Duo; Intel® Pentium® Dual Core; Intel® Celeron® Dual Core; Intel® Celeron® Chipset Intel® Q45 Express Chipset w/ICH10DO Operating System Options Microsoft® Windows 7® Basic; Microsoft® Windows 7®. The computer slows down often and I assume it is because of memory issues and I. 5: wait 15minutes, this further discharges huge capacitors inside. 2GB ddr2 RAM (will be upgraded to 4GB) Gigabyte Radeon HD 5450. If the 755's PSU is genuine, it should be at end of service. 20 GHz, 512 KB Cache, or up to 2-core Intel Core 2 Duo E8600, 3. Deals. Replace your faulty motherboard with a GENUINE ORIGINAL OEM motherboard. 4: SEE FANS spin for 1 second , is very very common. 04 but I can not see any network to be discovered in the Network Manager panel, while my netbook (using Ubuntu too) discovers our home ADSL network. 7040 comparison. or Best Offer. 99images10. when I click on a camera view to make it the enlarged view, it slowly does so freezing until it is the enlarged view. speedstep. The My Computer properties show 3. Description Values. 9 Legend. The computer is a BTX form factor so aftermarket parts aren't actually made to fit. Memory Type & Info. DellLearn how to set up your Dell OptiPlex 755 desktop computer with this comprehensive guide. cmariategui. I'd prefer. 3 ghz . If you can find an ATX motherboard which will fit the Dell case, your problems are over. Specifications of OptiPlex 5000 Tower. 6pOHFWLRQQH] Intel ME Configuration o Intel ME Features Control o Manageability *pUDELOLWp Feature Selection 6pOHFWLRQGHVIRQFWLRQVThe Dell OptiPlex 5090 Tower is a reasonably priced business desktop PC with a vPro-equipped Core i5 and lots of room to add or replace internal components, at time of purchase or later on. I was able to find a new one on eBay for $15. 23-08-2017 12:00 PM. Order toll. DELL Dual Full Height PCI Riser for Dell OptiPlex 755 Energy Smart. Lay the heat sink down on its top, with the thermal grease facing upward. Advanced Search; Global Parts Search;. Product Specifications Upgrade your computer with DDR2 667MHz memory - the quickest, easiest way to boost performance and speed! Adding extra memory is one of the most cost-effective ways to. 93 GHz), 3GB DDR3 RAM, 320GB SATA II HDD, GMA4500, DVD-RW, Windows 7 Professional, compare, review,. Hello, I'm planning to upgrade my OptiPlex 755. Smart solutions. Dell OptiPlex 755 User's Guide Publish date: 20 APR. India. a crude mounting method but works for idle cpu op. 5 to 3. 6 Posts. • Memory Interface: 64-bit. Puede ver la información que le comento en la página 81 y 105 de la Guía del usuario de Dell OptiPlex 755 . My current specifications are as follows: CPU - Intel Core2 Duo E6550 @ 2. OS Name Microsoft Windows 7 Home Premium. 66GHz, either 2GB or 4GB of DDR2 RAM, and 250GB storage capacity. Regulatory . Saludos . 4 cm (4. Design 1st OptiPlex was the first Dell product made with recycled materials in 2007. core 2 dup 2. The Dell OptiPlex TM 745 is designed to meet the needs of a wide variety of business users. Backed by a lifetime warranty Kingston memory. 0. The Dell OptiPlex 755 is a desktop computer that was released in the mid-2000s. 745/755/760 USFF use proprietary 8 pin external AC adapter. 07-12-2021 10:00 AM. OptiPlex 990 OptiPlex 990 Technical Specifications Processors1 Intel® 2nd Generation Core™ i7, i5, i3 Processors. ) Depth 292. Order toll. The Small Form Factor (SFF) is an in. downloaded for various Dell's. Ultimate commercial All-in-One with no compromise. #7 by Tesla1856 I believe is referring to: There is no 256 GB SSD limit listed for the Optiplex 755, as the manual doesn't refer to any SSD's or capacities. 250 gb. FURTHER UPDATE: The tech spec for your model here says that the top processor you can put in would be the Core 2 Quad Q6700. Open case, remove battery for at least 5 minutes. 99. com. Note regarding operating systems not listed above: Dell may not support an operating system for various reasons, including discontinued support from the software vendor, lack of availability with certain products. Re: Dell Optiplex 755; picky with memory Mixing RAM brands/specs commonly results in problems. Memory: Ultra Small Factor model: Up to 4 GB 1066 MHz Non-ECC SDRAM DDR2, 2 DIMM Slots; All other models: Up to 8 GB 1066 MHz. Crucial Memory and SSD upgrades - 100% Compatibility Guaranteed for Dell OptiPlex 755 Series (Desktop Mini-Tower and Small Form Factor) - FREE US Delivery. 99. | support. Over 100 total manuals, tech guides, spec sheets, & etc. Specifications: Manufacturer: Intel ( OEM for Dell Optiplex 755 ) Dell Part #: PU052 0PU052 JR269 0JR269 Socket: LGA775 Expansion Slots: 1 PCI Express x16 / 1 PCI Other Features: Hyper-Threading Technology Support Connectors:. ATI HD3450. Memory: Up to 4 GB Non-ECC dual-channel 1066MHz DDR3 SDRAM, 2 DIMM slots. This post is more than 5 years old. I also found this list of CPUs and RAM that was posted by Kisianik on Tom's Hardware forum. Program Dell Client Manager (DCM) Ultra-configurable, Dell Optiplex 755 specs include an Intel Core Duo processor running from 2GHZ to 2.