We would like to show you a description here but the site won’t allow us. Memory Options3 MT/DT/SFF- Four DIMM slots; Non-ECC dual-channel 1066MHz or 1333MHz DDR3 SDRAM, up to 16GB maximum system memory USFF- Two DIMM slots; Non-ECC dual-channel 1066MHz or 1333MHz 4 DDR3 SDRAM, up to 8GB maximum system memoryI have a refurbished Optiplex 755, Windows 7 pro 32 bit, 2GB RAM. Where to buy. Crucial. 3,160. 1. Set personal price drop alerts! If you have Windows, System Info in the Control Panel will tell you total use of the RAM. $999. Community Dell. 30,340. Crucial shows this as requiring 1. 4GB or Greater System Memory Capability: A 64-bit operating system is required to support 4GB or more of system memory. $64. Kisianik, you said a 750 ti would be appropriate for Dell Optiplex 755. Yes, crucial brand ram from genuine micron factories is about the only memory that will ever work in a dell computer. 8 Gig Dimms are a no go FOREVER request denied. From the Optiplex 755 Tech Guide, 800MHz is the max RAM speed for it. Beyond just RAID support, the system offers proactive security features from vPro, and advanced remote management capabilities. see it will turn off. Configuration ID: CT11944613. Below memory compatibility will be DDR3 unless stated otherwise. 8 Gb/s (DDR2 800 dual 6. If you are using a 32-bit operating system such as Microsoft® Windows® Vista®, your computer will support a maximum of 4 GB of memory. With 2 X 4 gig you get 7. 66GHz (2 CPUs), ~2. Tengo una Dell Optiplex 755 que de fabrica viene con 2 Gb. Crucial Memory and SSD upgrades - 100% Compatibility Guaranteed for Dell OptiPlex 745 Series (Desktop Mini-Tower and Small Form Factor) - FREE US Delivery. ram can upgrade to 4x2 gb ddr2. You Never get this ram back. Optiplex Desktops. - SkillBench (space shooter). Safely scan your system for max upgrade options. I have heard conflicting info that either 4gb or 8gb is the max it can handle. ItemTips. I really don't know that you'll notice a difference in RAM speed between 667MHz and 800MHz simply using the PC. Kingston high quality Dell OptiPlex 755 DT/MT/SFF Desktop upgrades. (example: DDR3L) DDR3 is not backward-compatible with DDR2. Maximum memory is 64GB on Tower/Small Form Factor, 32GB on Micro. Can someone confirm the RAM capacity of an Optiplex GX 280? I bought a used machine, it is fitted with 2 x 512 MB. make sure you use thermal paste for the installation. It has to do with the number of banks that the MCH can drive as well as power etc. Non-ECC dual-channel 2400MHz DDR4 SDRAM (2133MHz performance on. 25GB of memory, even with a 64-bit. 115. The actual. OptiPlex. Find compatible Memory (RAM) for your Dell device - Optiplex Desktops. Two more questions - What's the brand name of the RAM? Is your 755 an MT, DT, SFF or. Max Supported: Ultra Small Factor model: 4 GB / All other models: 8 GB. Optiplex Desktops. You never get the full amount of ram because the Video Frame Buffer and Bios shadow Steals 512 megs or more that you NEVER get back. 4: SEE FANS spin for 1 second , is very very common. Is it possible to upgrade my Q6600 cpu to a Q9550 / Q9650? I know that there is no Q9550/Q9650 on the Compatibility list, but i've seen somebody putting that CPU. 48 delivery Jan 9 - 12. . Dell. You'll get MUCH WORSE performance. The best solution is to buy refurbished mid-tower. My question is that the Motherboard PCIe slot can only provide 35W, not the normal 75W of other motherboards. Why does crucial recommend a higher maximum ram limit for my system than the system manufacturer? At Crucial®, we ensure that the higher amount of RAM is rigorously. Browse CommunityDell optiplex 755 maximum ram support Alright. . DDR3 and DDR3L are socket compatible, however, It is NOT compatible with computers using 4th Generation Intel (Haswell) processors, which exclusively support 1. speedstep. Crucial Scanner. Sep 20, 2011. According to the Dell manual, 8GB is maximum. 33GHz. A seagate 500GB HDD and (originally) 4GB of Samsung PC2-5300U DDR2 ram in a 4x1 configuration. Drives > SATA Operation. This is just a guess though I am not Dell engineering and I don't have a Cpu to test. Boost GPU Frequency. Jun 27, 2018. The maximum amount of memory you can install into the Dell Optiplex 7010 SFF is 32Gb. 8. Device Management. Dell Optiplex 755 Series GM819 Motherboard. The 745 appears to use either the Q963 or Q965 chipset, while 755 uses either the G31 or G33. Buy some contact cleaner and spray the RAM contacts as these desktops love to complain about RAM fault when RAM contacts go bad. Exact same specs as the shipped version, but the system will not accept it and will not boot. Memory slots Four UDIMM slots Memory type Dual-channel DDR4 Memory speed 3200 MHz Maximum memory configuration 128 GB. Ensure to install a single memory module in CHA_DIMM, the connector closest to the processor, before installing a module in the other connector. 2GB. $3163. Their seems to be some conflicting information with the dell manuals: check out the max memory from the dell optiples 380 setup and Features Information pdf. I also Googled and ran across this thread. 2: M. Tengo 4 memorias ram de 1gb en mi optiplex 755, quiero aumentarla a 8GB. NOTE: If you have the USFF, only 4GB are compatible. - RAM tests include: single/multi core bandwidth and latency. It's not really very upgradeable either. $1,275. As far as the the CPU goes, the C2Q Q6700 is compatible with your SFF. RAM - 6GB DDR2. 00 Used;OptiPlex 755 upgrade. Optiplex. Genuine CMS brand, CMS is one of the most trusted names in the Computer Memory industry and this product carries a Lifetime Warranty from CMS Compatible with: Dell OptiPlex 210L 320 330 740 745 755 Maximum Memory: 4 or 8GB Expansion: 4 or 2 Sockets. Maximum Memory; 4. ¿. Dell ships non-ECC 184 pin SDRAM memory only. Max Dimm size for this model is LOW Density INTEL compatible Ram 2 gig modules. 25-01-2019 18:00 PM. Dell Optiplex 755 SFF RAM upgrade problem. M. Model Name: XPS 630i: HD Bus Type: Standard Memory: Max Memory: Number of Sockets: Memory Comments: 800MHz, DDR2-800 PC2-6400, 240p DIMM, 1. compare. The My Computer properties show 3. 66Ghz, 95w and 1333mhz bus speed. Unlock faster load times, improved responsiveness, and seamless multitasking for a smoother computing experience. Check out this thread with practical test that 8GB RAM as maximum for Optiplex 760. 5. I will be getting myself another dell optiplex 7050. Maximum RAM Supported: 8 GB: Connector Type: 1 x Display Port 1 x Ethernet 1 x Mic, 1 x Audio 7 x USB 2. Each memory slot can hold DDR2 PC2-8500, DDR2 PC2-6400, DDR2 PC2-5300 with a maximum of 4GB kit (2GBx2) per slot. Maximum Memory Per Slot: 2GB: SSD Form Factor: 2. It hung on the "Starting Windows" section of the install. $4. Power Supply PSU PSA Dell Optiplex 780 745 760 755 Tower. Si va a mezclar tipos de memoria, ejemplo memorias de 667 MHz con Memorias de 800Mhz las memorias trabajaran a la velocidad del módulo más lento. 5-inch drive bay 4 USB 2. Q6600 - Cheaper than dirt. 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. Use more than 2 GB RAM in Dell OptiPlex 320. sp. Optiplex 5000 Micro. Kingston Value Brand (KVR) almost never works. Ao your looking at DDR2-6667 or DDR-800mhz, 4x2GB DDR2 ram NON. A very short, very. I have found a potential Hynix module (HMA81GS6DJR8N), but there are some differences between. 5 x the total memory. ) - it is much slower than when first purchased. DDR3 and DDR3L are socket compatible, however, It is NOT compatible with computers using 4th Generation Intel (Haswell) processors, which exclusively support 1. N650J 2. Three-Step Upgrade Selector. 74. 0. 5Ghz - RAM: 256GB (16x8GB + 8x16GB) @ 1333Mhz - Storage: 1x Intel 160GB SATA III SSD, 12x Seagate SAS Enterprise 1TB HDD in RAID Z2, 4x Sandisk. 83GHz Yorkfield Quad Core Q9550 12MB, 1333FSB, E0. Memory Recommendations for Optiplex 755 SFF. The only way I know to fix it if you want to pursue it is to return the RAM you just bought. I'm going to buy my first Dell computer, which is a Dell Optiplex 755 Small Form Factor. 2V • 1Rx8 • PC4-21300. or Best Offer. 21. 4 Gb/s) of bandwidth and 8 Gb memory addressability for faster system. gpu can safely upgrade to low profile TDP max 25W. Podrá encontrar mas información referente a la memoria RAM del equipo OptiPlex 755 en las páginas 81 y 105 del siguiente manual en línea: Guía del usuario de Dell OptiPlex 755. I also have an Optiplex 790 DT; Win 7 32-bit; i3-2100; 250 GB HDD; 4GB RAM. Monroville Dell Poweredge R715 server. 66GHz Yorkfield Quad Core Q9400, 6MB, 1333FSB, R0. Both the 755 and 760 run the same processors. That's when your PC will fly. I also specified 2 GB of PC2-6400 800Mhz of DDR2 memory as part of the original configuration that was supplied by Dell. Add to Cart. What can we help you to find. 99. Late in its life it did get VISTA WDDM 1. Dell OptiPlex DDR3 Memory Compatibility Guide Reference the DDR3 Memory Compatibility Guide for the Dell OptiPlex series. just replaced 2x512mb memory and purchased 4x1gb (max for four slots) ddr2, PC2-. Only one thing changes RAM speed. It has a E2160 1. I'm looking to upgrade the CPU on a Dell Optiplex 755 Desktop system. 01TKCC motherboard. Description Values. Works in ALL 755 models. PowerEdge Hardware General. I have a Nvidia Geforce GT220 video card, which is a low profile video card, it can consume the maximum of 58 W, and this video card requires at least 300 W works without problems. Posts / Dell Community /. If you are using a 64-bit operating system, your computer will support a maximum of 8 GB (2-GB DIMMs in each. So far I've salvaged the E521 and upgraded the Optiplex to 6 GB of RAM, slapped my. Mmansueto. Ad. 90 Reviews. OptiPlex 3280 All-in-One. 6 Based on Dell internal analysis using publicly available specs in August 2023 comparing maximum. model 0HX555 revision unknown serial. pretty simple way to make a fast computer even faster. My OptiPlex came with licenses for Windows XP and Vista, but I can't find the product key for XP. When I put Win10 on an SSD and maxed the RAM, that's when I really noticed a difference in speed. I wanted to add just a small SSD as a boot drive and keep the HDD for storage, but it is a SFF and that HDD in that big tray with a fan takes up a ton of room. More speed with little fuss: Installing and testing RAM modulesOptiPlex 780. Desktop/Workstation RAM upgrade » OptiPlex 780 by Dell. Memory. I used the specs as specified in the manual to purchase Crucial DDR5 CT2K16G48C40U5. A-Tech 8GB (4X 2GB) Max Memory RAM Kit for Dell OptiPlex 755, 745, 740, (MT, DT, SFF) - DDR2 667MHz PC2-5300 Non-ECC DIMM Upgrade. I contact you and hope that you can help me to resolve my problem about Optiplex 380 ram: My Optiplex 380 had 4GB of ram (4GB hynix 2rx8 pc3-10600u-9-10-b0 / hmt351u6bfr8c-h9 n0 aa) and worked correctly. Hi Deeprocks19, Please refer to your user manual. 29-08-2020 12:00 PM. $5999. 0. But the Dell optiplex 755 SFF comes with only a 275 Watt power supply. then ,a. 15,010. 667-MHz or 800-MHz DDR2 SDRAM. . 3 4. Find your system on our list of over 175,000 computers. All Mr Memory recommended upgrades are 100% compatible with your Dell. N652J 3. Crucial Memory and SSD upgrades - 100% Compatibility Guaranteed for Dell OptiPlex 755 Series (Desktop Mini-Tower and Small Form Factor) - FREE US Delivery. 89The specs say max ram is 8GB, but there's plenty of posts showing folks with 12GB or 16GB RAM. 2: M. normally on a OptiPlex 755 (and you need to confirm this by looking inside the case) the system has 4 slots for ram, ands 8GB is the highest in 99% of cases for 775 CPUs' thus DDR-800/667 being the two possible speeds used on the said motherboard. Hi everyone, I'm a new user here and have a question for you. Thank u for reply So what kind Of Ram Matches this computer ? i see some people using a 12gb ram In dell755KVR800D2N5K2/4G is HIGH Density Ram. ) - it is much slower than when first purchased. By Danlewis3 in forum Classified Adverts Replies: 0 Last Post: 25th March 2010, 11:07 AM. What is the max speed of ram this machine can handle? Typically I have seen machines with. Maximum Size SSD for XPS 8940. 2GB Kit 2 X 1GB DDR2 Memory for Dell Optiplex 330 740 745 745c 755 Desktop PC2-5300 240 pin 667MHz DIMM RAM. x Just about any cheap NVIDIA late-model PCIe video card. Your PC won't break if the wrong selection is made, it simply won't boot. It appears that you already have the maximum amount of RAM. Manufacturers. 35V operation for memory. 5" bay : Additional information : 9350 9360: 1: 1x M. 66 GHz Intel Dual Core CPU and having a front side bus of 1333 MHz. The specs scall for a maximum of 16GB total yet states that 16GB per slot is compatible. So if you have 2x 2GB now, you can add another 2x 2GB (total 8GB) or remove the existing 2x 2GB and install 4x 4GB or 2x 8GB (total 16 GB). Start a Conversation. Optiplex 7040 Spec Sheet I think you meant 7020 and not 7040? Up to you. OptiPlex 160L. DellThe 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. Enter model or choose from the list below. 28-06-2021 17:00 PM. Question Maximum number optical. I know the maximum is 8GB, but would this work? I would like 8GB but my budget isn’t in heights for this older system. 5783 05-02-2017 18:00 PM upgrading RAM on OptiPlex 755 with 0GM819 motherboard Good day Sirs, I have Mini Tower OptiPlex 755 with 0GM819 motherboard. cannot be used by computer memory; therefore, the amount of memory availab le to the operating system is less than 4GB. Six years later, my replacement Optiplex 755 Desktop has failed. have a Dell Optiplex 755 MT that was purchased as a barebones w/o a processor, memory or hd. DDR3 and DDR3L are socket compatible, however, It is NOT compatible with systems using 4th Generation Intel (Haswell) processors, which exclusively support 1. Optiplex 755 DDR 2 Ram question. Type. Windows finished installing. Dell 755 optiplex. Optiplex 7010 memory question. Memory Type: DDR2 PC2-8500, DDR2 PC2-6400, DDR2 PC2-5300, DDR2 (non-ECC) Maximum Memory: 8GB. I have an Optiplex 760 x-64 running Win10 Pro that's using up 71-85% of memory with minimal applications (email, Adobe Reader, Win Office, etc. I used the 16GB Corsair 8 GB DIMM 1600 MHz PC3-12800 DDR3 Memory (CMZ16GX3M2A1600C9). i use a cpu cooler from a dimension 9200,which is more effective than the original one and a second 120mm fan at exit of the duct to raise the air flow. Unless you bought it already, I suggest A-Tech RAM. M. 8V - HYMP151F72. I'm impressed you got an Optiplex 755 to take an SSD; though SSD's aren't listed in the manual. OS Name Microsoft Windows 7 Home Premium. Each memory slot can hold DDR2 PC2-8500, DDR2 PC2-6400, DDR2 PC2-5300 with a maximum of 4GB kit (2GBx2) per slot. For best Optiplex 755 Small Form Factor Computer performance use the maximum amount of 16GB, fill all the slots with the max allowed memory per slot for your Computer. version A08 date 02/19/2008 ROM size 4096 KB DMI System Information manufacturer Dell Inc. Dell sometimes does custom implementation of the Intel spec for a chipset. 5GB will be set aside for the OS. 99. This item: 8GB 4X2GB Dell OptiPlex 755 Series Desktop/PC DDR2 PC2-5300 RAM Memory. The specs for Optiplex 755 Desktop comes in these configurations with a retail price tag. 4. Saying not supported doesn't state if it wasn't tested so they can't say it will work, or if it was tested and failed. Maximum System Memory (uses 2GB DIMMS) 8GB1 8GB1 8GB1 4GB1 800MHz Memory configurations 8GB1 DDR2 Non-ECC SDRAM, 800MHz, (4 DIMM) X X XFull system specifications are as follows: Dell Optiplex 755 Desktop, Intel Core 2 Duo E4600, 8GB DDR2-667, Samsung SP2004C 200GB hard drive, XFX AMD Radeon R7 240 2GB (low profile), Generic NEC VGA 1280x1024 display, Samsung Q1 USB Keyboard because it's the only USB keyboard I have. 800MHz FSB, Intel Q35 Express Chipset. 4 4. I would like to upgrade to 8 GB by. 8GB de memória máxima. Mi pregunta es ¿Puedo colocar en una de las ranuras libres una memoria ram kingston kvr8002N6 de 2 GB a 1. RAM for the 755 (I like A-Tech with lifetime warranty) is quite reasonable. 89 $ 64 . FREE & FAST DELIVERYShop for Desktop Computers in Canada at Memory Express with a large selection of All-In-One Computer, Barebone Computer, Business Computer, Gaming Computer, Home. Memory: 1 GB, 2 GB, 3 GB, or 8 GB 800 MHz DDR2, 2 DIMM slots. 13GHz Core2 Duo Processor (1066MHz Front Side Bus), 3GB DDR2 250GB SATA Hard Drive, Crystal Clear , DVD/CDRW, Intregrated Lan/Audio, Onboard Video, Windows XP. Perhaps, a ssd and maximum memory is only 8 GB's. 2 slot supports 4X. version 1. Business. 100. The Mr Memory upgrades below are 100% Compatible for your Dell. Install modules in. It has a Core 2 Quad q6600 CPU in it, with 2 GB of ram and a PSU 275w. Hello, I have a Dell Optiplex 755 (DT) and I currently have 4GB of DDR2. My upgrade will be: CPU - AMD Athlon 3000G. The Optiplex 755 system has four variants: Ultra small form factor, Small form factor, Desktop, Mini-tower. J. Hi, I have Dell Optiplex 755 DT model. Are you sure I don't need a new power supply? I got the Ram and Hard drive covered now, so i don't need to worry about that, neither the CPU. Yet another working Optiplex 390 MiniTower setup with 16GB of RAM. The stylish new OptiPlex 960 delivers advanced technologies to tackle any challenge without missing a beat. 765 inches centimeters PCIe x16 Slot Dimensions: (HxL) Height 4. Lifetime Warranty. - RAM tests include: single/multi core bandwidth and latency. Minimum of a 400 Watt power supply. GX150 = Pentium 3 or Celeron with 512 megs max pc133 SDRAM. Dell Optiplex Desktops Support Forum. 50 $ 13 . 0. PC2-6400 would be preferable if you are using the IGP. 254 sold. Processor: Up to 4-core Intel Core 2 Quad Q9650, 3. Processor Intel (R) Core (TM)2 Duo CPU E4600 @ 2. model 0HX555 revision unknown serial . I would be worried about damaging the motherboard, or graphics card, or at very least crashing the computer regularly. Starting at CAD $599. Having more USB ports is always handy and beneficial, as it will allow you to connect more. So you can't have 2x 2GB + 2x 4GB (12 GB total). Dear Dell Users. 0 ports, whereas Dell Optiplex 780 features 8 USB 2. Your most impressive computer set-up. Data Security and Recovery with RAID 1 support ensures real time redundancy for data - helping to keep your business. good day! I have a DELL optiplex 755 SFF PC. – TJJ. if you really want to stick with the 755 tower case, you need to cut/mod. With appropriate handling of the. $37. •Intel vPro. Maximum Memory: 8GB: Maximum Memory Per Slot: 2GB: Number Of Memory Sockets: 4: Device Specifications; Make & Model: Dell OptiPlex 755 Small Form Factor [SFF] Device Type:Below memory compatibility will be DDR3 unless stated otherwise. 11. 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). 99. KingstonMemoryShop stocks memory upgrades for your Dell OptiPlex 755 DT/MT/SFF Desktop to boost performance and capacity. Dell OptiPlex desktops are engineered to respect our planethi i have a Dell OptiPlex 755/USFF, and i wanna upgrade the ram. Beyond just RAID support, the system offers proactive security features from vPro, and advanced remote management capabilities. I checked each stick, and individually they work, just not as a pair. Thanks for your help so far, I really appreciate it. All other brands will fail the memory check at boot. Desktop Computer (DT) View . 5 out of 5 stars 15. The technical guidebook to the 7010 says that each of the four DIMM slots can handle up to 8GB memory modules, but then says the system maximum is only 16GB. Copy current url to clipboardHowever, is says the minimum watt supply requirement for this GPU is 400 Watts. (PC2-5300U) 667mhz. Single slot cards with 1 fan can fit. Dell™ optiplex™ 755 technical guiDe systEM boarD connEctor MaxiMuM aLLowabLE DiMEnsions usff PCI Slot (s) Dimensions: (HxL) Height 4. I'll buy my first Dell computer, which is a Dell Optiplex 755 Small Form Factor. . Tengo una Dell Optiplex 755 que viene de fabrica con 4Gb de RAM de 667MHz, pero tengo entendido que esta solo soporta hasta 8Gb de RAM con una frecuencia de 667 MHz a 800MHz, entonces yo se la quiero mejorar a 8 Gb pero no se cual comprar ya que ya he probado con unas memorias ddr2 de 800MHz pero no arranca la. yes it is true, i still use my original dell optiplex gx280, 10+ years old. To get the max out of my 755 MT: CPU = C2Q Q9650; RAM = 8GB; OS is on a Crucial SSD. Hi, my PC came with a Samsung 8GB RAM (DDR5 UDIMM 4800MHZ). 30-07-2011 16:00 PM. 8v,Non-ECC. O. The 780 has socket type LGA775. From some discussion boards, I understand that I could. 5-inch 7mm (with 9. My background is that I have a Dell Optiplex E8400, 4GB Crucial Ram, 2- SATA CDRW/DVD's, 1. 50w RX 6400. My Optiplex 755 Gaming / HTPC setup is now complete. Dear Dell Users. I currently have them all "maxed" out at 8GB RAM apiece, which is the listed maximum for each. $64. What type of memory does the Dell Optiplex 755 Desktop Computer take? The Dell Optiplex 755 Desktop Computer takes the DDR2 PC2-5300 667MHz, PC2-6400 800MHz DIMM. com suggested ocz blades which are unavailable. #5. view all compatible upgrades. It might not be obvious to you yet, but it's pretty obvious the 755 can't take i7's, AMD Ryzen, and etc. optiplex 755 usff video card upgrade I have an Optiplex 755 usff that I got from my school and it was in a perfect condition and it came with 2 GB of RAM for max RAM and it came with the disc drive so that I could read and write DVDs and CDs. SO I've got an Optiplex 755 (if you cant tell already) that I'm working on upgrading to the most a dell possibly could be. I have an Optiplex 760 x-64 running Win10 Pro that's using up 71-85% of memory with minimal applications (email, Adobe Reader, Win Office, etc. 2GB RAM (1x2GB) INTEL GMA3100 ( :C ) 150GB HDD. Dell Optiplex 755: 32bit or 64bit. By tech_guy in forum Hardware. Base GPU Frequency. 5” Internal Solid State Drive, Upgrade PC or Laptop Memory and Storage for IT Pros, Creators, Everyday Users, MZ-77E1T0B/AM. The i5-2400 supports 32 GB max, according to Intel, so there's no 8GB total RAM limit with the CPU. 2V 1Rx8 288-Pin UDIMM Desktop RAM Memory Module other variants of Dell Optiplex 755 allow for 8GB maximum RAM, while Dell Optiplex 780 allows for up to 16GB RAM. Maximum memory: 8GB Standard memory: 1 or 2GB removable All compatible upgrades DRAM Internal SSD External SSD Internal SSD for: OptiPlex 755 Series (Desktop Mini-Tower and Small Form Factor) Crucial MX500 4TB 3D NAND SATA 2. $270. Alienware 15 R3 Geniune Dell battery. 8 Gb/s (DDR2 800. 1-16 of 131 results for "optiplex 755 memory" Results 8GB 4X2GB Dell OptiPlex 755 Series Desktop/PC DDR2 PC2-5300 RAM Memory DIMM 129 $3162 Save 6% with. FREE delivery Mon, Nov 13 . Shop Amazon for A-Tech 8GB (4X 2GB) Max Memory RAM Kit for Dell OptiPlex 755, 745, 740, (MT, DT, SFF) - DDR2 667MHz PC2-5300 Non-ECC DIMM. The upgraded system was a Dell 755 MT. There are 2 slots so you can put 4GB in each of the slots. 512 MB, 1 GB, or 2 GB non-ECC. make sure you use thermal paste for the installation. . 5-inch internal SSD • SATA 6. Maximum internal drives supported : Drive configurations supported (max) PCIe lanes : Parts needed to install a M. $19. May 18, 2016 at 9:17. 2 device into a M. Crucial Memory and SSD upgrades - 100% Compatibility Guaranteed for Dell OptiPlex 7020 (Mini-Tower) - FREE US Delivery. If you put 2 sticks 800MHz in your 745, then a stick with 667MHz, the system will operate all the RAM at 667MHz. the next Optiplex model using 1st and 2nd gen core i7 cpu is 980 or 790 which are both ATX. 3 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.