0 5 FRONT VIEW 1 Optical Drive 7 Network Connectivity Light 2 Optical Drive Eject Button 8 Microphone Connector. The only way I know to fix it if you want to pursue it is to return the RAM you just bought. Disconnect the power cable from the PSU, and wait for 15 seconds. The 745 appears to use either the Q963 or Q965 chipset, while 755 uses either the G31 or G33. 81. 376 / 11. I've read in a few places that if any of the versions of Windows are on 32-bit, they only use a max of 4GB. My current specifications are as follows: CPU - Intel Core2 Duo E6550 @ 2. Add to Cart. To get the best performance and speed from your Optiplex, upgrade to the maximum memory. The computer slows down often and I assume it is because of memory issues and I. Both the 755 and 760 run the same processors. 8GB maximum = Four 2GB DDR2 800MHz memory modules. PowerEdge Hardware General. - RAM tests include: single/multi core bandwidth and latency. vendor Dell Inc. It's an Optiplex 755 SFF with windows 10 64bit, so I'm going with 8GB ram (2 x 4), an SSD in place of the old HDD. Products;. 19-05-2010 15:00 PM. 35 V operation for memory. the modern intel motherboards are almost all ATX (or proprietary). 100. version 1. 6Ghz cpu and 2Gb ram DELL 0DR845 OptiPlex 755 MB with Dual Core E2140 skt 775 1. The system turning on when you connect the power is a BIOS setting (power restore). Dell Optiplex 755 specs, deals, and users reviews. Guaranteed-compatible with the Dell OptiPlex 755 Series (Desktop Mini-Tower and Small Form Factor)According to the Dell manual, 8GB is maximum. By tech_guy in forum Hardware. 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. 0 started showing up on 3020 7020 9020. CPU; Core2 Quad Q6600 Intel $100 Bench 42%, 59,658 samples: 75x: Core2 Duo E8400 Intel $22 Bench 40%, 68,540 samples: 63x:. 99. Dell equipped high end CPU Optiplex 755 models with 800 MHz memory, low end models with 667 MHz memory (Dell Optiplex 755 Technical Guide Book,. Windows Vista, 32-bit. 5 x the total memory. I would recommend minimum 1,5Gb RAM, minimum Windows 7 (that still supports latest browsers versions) and Pentium 4 with hyperthreading support (P4 650 for example). OptiPlex 160L. Where to buy. Optiplex 755 Manual. Please note: If you are upgrading your Dell Desktop/Workstation to more than 4 GB, you will need a 64-bit operating system to take. Going one step further Crucial RAM states that 64GB of RAM total is compatible as per their site here. $50. the next Optiplex model using 1st and 2nd gen core i7 cpu is 980 or 790 which are both ATX. It has to do with the number of banks that the MCH can drive as well as power etc. Maximum internal drives supported : Drive configurations supported (max) PCIe lanes : Parts needed to install a M. 275w PSU. 6Ghz cpu and 2Gb ram. Example:11-10-2014 06:00 AM. ¿. 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 667 MHz 240-Pin 4. I checked on Dell Precision's 3500 & 5500 due to their large capacities, including multiple HDD's. OS Name Microsoft Windows 7 Home Premium. Dell Part Number: 0GM819 GM819 JR271. The only way we got it to install was by turning "OS Install" option on. Or fastest delivery Jan 6 - 11. 0. 1 with 8GB. ? o tendré complicaciones, como le aumento la memoria Ram. I went from an E8400 to a Q9650 in my 755 MT a ways back. From the Optiplex 755 Tech Guide, 800MHz is the max RAM speed for it. 1x 4270E - Screw M2X3 : 9365 : 1: 1x M. CN698617CL07F0. 30,340. Re: Dell Optiplex 755; picky with memory Mixing RAM brands/specs commonly results in problems. 2: M. Small Business. 81 $ 50. 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. Unless you bought it already, I suggest A-Tech RAM. 89 inches centimeters Length 6. GTX 750Ti and Q9650 will work great together. Can someone confirm the RAM capacity of an Optiplex GX 280? I bought a used machine, it is fitted with 2 x 512 MB. Best choice memory for Dell Optiplex 755. +. 4. I have got a Dell Optiplex 755 SFF, and i'd like to change all of my hardwares, to the best components what i can use. Your most impressive computer set-up. 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. The CPU upgrade is the area I'd appreciate some advice. GPU - NVIDIA GTX 970. Something like 0. It varies. 8 Gb/s (DDR2 800 dual 6. DDR2 PC2-3200/4200 is NOT Supported in ANY configuration. Boost GPU Frequency. 6. $64. Something like 0. Buy Kingston Dell Optiplex 755 USFF/Ultra Small Form Factor Desktop Memory RAM & SSD upgrades. It needn’t be a high paid position (The CEO could give up 1% of his yearly pay/bonuses to fund the department and give some deserving people an 8$/hr job. Each memory slot can hold DDR2 PC2-8500, DDR2 PC2-6400, DDR2 PC2-5300 with a maximum of 4GB kit (2GBx2) per slot. It has 4 Ram slots (2 Banks of 2) and each can take 8Gb of Ram. It has a E2160 1. An SSD hard drive should work and Crucial sells some they claim compatible with the 755. If the system and OS is 64 bits, it isn't a architectural reason to have a limit of memory to 4 or 8 GB. responsiveness and support of 64-bit computing" DELL™ OPTIPLEX™ 755 The new Dell OptiPlex 755 offers a compelling, versatile solution that can help you meet evolving business needs with the right technologies and services. 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. 90 Reviews. Dell Optiplex 755 SFF - How to: Maximum Performance? Dear Dell Users. It could be bios is malfunctioning. Memory Type: DDR2 PC2-5300, DDR2 PC2-8500, DDR2 PC2-6400, DDR2 (non-ECC) Maximum Memory: 8GB Slots: 4 Each memory slot can hold DDR2 PC2-5300, DDR2 PC2-8500, DDR2 PC2-6400 with a maximum of 2GB per slot. The Dell OptiPlex 755 gives you advanced security options to help keep your data secure real-time. 89. If the BIST LED does not turn on or the PSU fan does not spin correctly, the. 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. What is the max speed of ram this machine can handle? Typically I have seen machines with. That's when your PC will fly. I would like to get input from other people that use the Optiplex 755 and get some input on what they recommend upgrading on the system to make it more of a personal. Thanks for your help so far, I really appreciate it. I purchased a Dell Optiplex Micro 5000 computer which came with a SK Hynix SODIMM 8GB (HMAA1GS6CJR6N) memory module. Crucial's site has you enter the PC model. INSIDE THE OPTIPLEX XE . I checked on Dell Precision's 3500 & 5500 due to their large capacities, including multiple HDD's. Unsolved. Even if the BIOS update is from 2007 like mine. 89The specs say max ram is 8GB, but there's plenty of posts showing folks with 12GB or 16GB RAM. Effective Memory Clock: 1200MHz; Model #: EAH6450 Silent/DI/1G; Item #:. Memory speed issue after Optiplex 755 Memory Upgrade. Memory modules supported. 667-MHz or 800-MHz DDR2 SDRAM. 4GB or Greater System Memory Capability: A 64-bit operating system is required to support 4GB or more of system memory. $28. EUR 23. Difference from the Quad's in 780 to the E6850 is minimal for your real life performance. 48 delivery Jan 9 - 12. This means modules with chips on both sides. Crucial 8GB 4x2GB For Dell OptiPlex 740 745 755 760 PC2-6400 DDR2 800Mhz Memory. Jun 27, 2018. Dell 755 optiplex. exe. Alienware Desktops. )Newer versions do not run at max speed in. Memory Type & Info. We recommend Crucial for non-Dell memory as it is guaranteed to work in Dell's. The technical guidebook states that 16Gb is the maximum, but this is incorrect. Hi, I have Dell Optiplex 755 DT model. Something I've mentioned before, if my PC really was 64% faster, I really didn't notice much difference. The standard-sized hard drive and optical drive bays can accept any type of SATA drive, so you can repair and upgrade these components easily. Max Supported: Ultra Small Factor model: 4 GB / All other models: 8 GB. I would like to upgrade to 8 GB by. Graphics. The memory speeds supported include 667 and 800 MHz DDR2 memory. 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. I have two Optiplex 755 SFF running VMware ESX 4. OptiPlex 3090 Ultra Form Factor. com suggested ocz blades which are unavailable. pretty simple way to make a fast computer even faster. 765* 6. OPTIPLEX Spec Sheet 5000 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 memory was twice replaced using new Dell. Dell OptiPlex desktops are engineered to respect our planethi i have a Dell OptiPlex 755/USFF, and i wanna upgrade the ram. Find compatible Memory (RAM) for your Dell device - Optiplex Desktops. Enter model or choose from the list below. 1x 4HP13. I'll buy my first Dell computer, which is a Dell Optiplex 755 Small Form Factor. The latest, the Dell OptiPlex 7760 All-in-One (starts at $1,289; $1,983 as tested), continues Dell's dominant run of AIO business desktops. 6 Professor. Beyond just RAID support, the system offers proactive security features from vPro, and advanced remote management capabilities. I currently have them all "maxed" out at 8GB RAM apiece, which is the listed maximum for each. Maximum Memory: 8GB Slots: 4. 99. 731 / 6. RAM - 6GB DDR2. As far as the the CPU goes, the C2Q Q6700 is compatible with your SFF. 4GB de memória máxima. I have got a Dell Optiplex 755 SFF, and i'd like to change all of my hardwares, to the best components what i can use. Thread starter h2l; Start date Feb 16, 2012; Tags. If you are using a 64-bit operating system, your computer will support a maximum of 8 GB (2-GB DIMMs in each. I'll buy my first Dell computer, which is a Dell Optiplex 755 Small Form Factor. Dell ships non-ECC 184 pin SDRAM memory only. Currently installed with 4 GB (2 x 2GB modules). 2: M. 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. GPU - NVIDIA GT 240. 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 4. ItemTips. Windows finished installing. N652J 3. i own an optiplex 755 and just did install a q9550 after updating bios to a20 and the thing is a rocket now,video card is a gt220(hdmi out to 32"lcd sony bravia) and 4gb of ddr2 800mhz ram. if your looking at one of these i would reccomend them because they blend into everyday use and tasks. Max memory for Optiplex 780. . 0. 17-03-2021 20:00 PM. Memory connectors. 8v: Image Description Manufacturer Size. I want to expand my RAM to the max 8GB in my Optiplex 755 MT. Hi, I recently purchased a new Dell Optiplex 755 with an E6750 2. 2 slot supports 4X. model 0HX555 revision unknown serial . 8GB de memória máxima. . 5: wait 15minutes, this further discharges huge capacitors inside. Get the lowest price deals on Amazon, and eBay. My question is that the Motherboard PCIe slot can only provide 35W, not the normal 75W of other motherboards. Plus, an all-new display. The list spans from 1996 to 2023 and includes CPU compatibility, chipset type, number of memory slots, maximum ram and the ram speed. When setting up, Dell recommends that you: Connect to a network for Windows updates. 89 $ 64. 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. #3. 35 V operation for memory. #5. (example: DDR3L) DDR3 is not backward-compatible with DDR2. This system supports 8GB (2 Dimms) of DDR3. The stylish new OptiPlex 960 delivers advanced technologies to tackle any challenge without missing a beat. 0Gb/s • 540 MB/s Read, 500 MB/s Write. Dell. Replacing the. +. Create & edit digital content. 1GB Memory Upgrade for Dell OptiPlex 755 DDR2 PC2-5300 667MHz Desktop Non-ECC DIMM RAM (PARTS-QUICK Brand) $699. DDR3 and DDR3L are socket compatible, however, It is NOT compatible with computers using 4th Generation Intel (Haswell) processors, which exclusively support 1. Dell sometimes does custom implementation of the Intel spec for a chipset. 3. Dell. It needn’t be a high paid position (The CEO could give up 1% of his yearly pay/bonuses to fund the department and give some deserving people an 8$/hr job. It has a Core 2 Quad q6600 CPU in it, with 2 GB of ram and a PSU 275w. 5 volt memory. The cost of the ram that works is more than buying a better unit. 5” Internal Solid State Drive, Upgrade PC or Laptop Memory and Storage for IT Pros, Creators, Everyday Users, MZ-77E1T0B/AM. I would be worried about damaging the motherboard, or graphics card, or at very least crashing the computer regularly. 5GB will be set aside for the OS. Thank You for your support! Community Dell. A 780 can take a Q9650 Intel Core 2 Quad 3. 0. 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. Memory Compatibility. I'm thinking of upgrading my GPU to GTX 1050 Ti Low Profile, upgrading the memory up to 16gb or 32gb and upgrade the HHD to 1TB and replace the optical drive. I would like to get input from other people that use the Optiplex 755 and get some input on what they recommend upgrading on the system to make it more of a personal computer than a business. Six years later, my replacement Optiplex 755 Desktop has failed. Or fastest delivery Thu, Jul 6. Discover more about the. 115 2. Drives > SATA Operation. Make optimal use of your installed memory. #1. 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. The manuals all direct me to a label on the chassis, and there is one for Vista, but not XP. Aurora R4, computer won’t boot with Intel Xeon E5 2697 v2 in LGA2011 socket. 89 $ 64. Start a Conversation. By Danlewis3 in forum Classified Adverts Replies: 0 Last Post: 25th March 2010, 11:07 AM. This Dell Computer can take up. GX150 = Pentium 3 or Celeron with 512 megs max pc133 SDRAM. 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. 2V • 1Rx8 • PC4-21300. Publish date: 20 APR 2008. 2GB. 28-06-2021 17:00 PM. Tengo 4 memorias ram de 1gb en mi optiplex 755, quiero aumentarla a 8GB. I have just bought a very similar, used Optiplex 755 DT on eBay with a similar CPU. Enter model or choose from the list below. Description Values. Whether you are looking to configure your OptiPlex 780 yourself or upgrade it, equipping a device with sufficient RAM is. Three-Step Upgrade Selector. 5Ghz - RAM: 256GB (16x8GB + 8x16GB) @ 1333Mhz - Storage: 1x Intel 160GB SATA III SSD, 12x Seagate SAS Enterprise 1TB HDD in RAID Z2, 4x Sandisk. Top Solutions. Sep 15, 2016. If I insert one 2 GB and one 1 GB, then the BIOS detects. 0. Maximum Memory; 16GB: Memory Expansion Slots / Banks; 4 Slots: Memory Type & Info; DDR2 PC2-5300 667MHz / PC2-6400 800MHz Non-ECC DIMM Intel Q35 Express. This is from the 760 manual in Dell support. According to Dell's Optiplex site. 8 Specifications of OptiPlex 5000 Small Form Factor Better yet, the memory manufacturers could supply free memory to Dell and one to four people could sit in a room filled with current Dell machines and test the modules for compatibility. 4. OptiPlex 755 User's Guide - iAMT. Learn how to run a hardware diagnostic test, download, and install drivers and more. My Dell recognized the new memory configuration when I turned it on. 66GHz Kentsfield Quad Core Q6700, 8MB, 1066FSB, G0. 4. 376 / 11. Motherboard: Dell OptiPlex 7010. Late in its life it did get VISTA WDDM 1. Starting at CAD $599. Buy Now Payment Secure transaction Ships from A-Tech Components Sold by A-Tech Components Returns Eligible for Return, Refund or Replacement within 30. 25 (2 new offers) 8GB (4GBx2) Team High Performance Memory RAM Upgrade For Dell OptiPlex 210Ln 745 Series (Desktop Mini-Tower and Small Form Factor). Ad. 23 gigs of RAM. Report. With 1GB GPU= 4GB RAM. Dell Desktops. So I guess this should be high density. This system rating = 2134, 2D=482, 3D=1872- quite. 07-01-2013 05:00 AM. Hello, I'm planning to upgrade my OptiPlex 755. Shop the latest Dell computers & technology solutions. I previously owned a Dell Dimension E521 that consisted of a AMD Athlon 64 5000+, 4 GB of RAM, and a HD 6670. PCI-E does not limit the graphics memory so users may see maximum graphics memory up to 1536MB used in some situations. 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. View and Download Dell Optiplex 755 technical manualbook online. This computer supports maximum memory speed of 800MHz DDR2 SDRAM. This fault usually occurs about once per week. Crucial. Maximum memory is 64GB on Tower/Small Form Factor, 32GB on Micro. Crucial Scanner. Browse CommunityDell optiplex 755 maximum ram support Alright. Intel Celeron 430 (1. I know this is post is 6 months old but I did a lot of looking and due to height and width limits of 755 DT the maximum capacity card that I could find (and they're getting scarce) if you want to be able to close the cover is the AMD Radeon HD 6450 LOW PROFILE, SINGLE WIDTH with DVI and Display Port interface ONLY. MP627 2. Upgrading it is somewhat difficult for a DT. I checked each stick, and individually they work, just not as a pair. Forget it, running a HD7750 card on a Dell 280w PSU is going to cause nothing but trouble and possibly damage the PC. -. I also tried other brand (Kingston with. You can identify the OptiPlex 755 by looking for the Dell logo on the front or side of the device. 25 Gig of ram with the rest stolen by Video Frame Buffer and the memory map for Bios. To get the max out of my 755 MT: CPU = C2Q Q9650; RAM = 8GB; OS is on a Crucial SSD. Memory Recommendations for Optiplex 755 SFF. The max memory this has is 8192 mb. I have found a potential Hynix module (HMA81GS6DJR8N), but there are some differences between. Monroville Dell Poweredge R715 server. Good day Sirs, I have Mini Tower OptiPlex 755 with 0GM819 motherboard . Tengo una Dell Optiplex 755 que de fabrica viene con 2 Gb. 66Ghz, 95w and 1333mhz bus speed. More Buying Choices. 66 GHz Intel Dual Core CPU and having a front side bus of 1333 MHz. It would be nice if the GTX1050 would run because it could move to your next machine. At the technical guide (thank's for link to SpeedStep) I didn't find any information about supported max. My Optiplex 755 (desktop) came with 2 1Gb 800MHz sticks and I'd like to add another 1Gb, i. Most dell computers have code in the bios firmware that checks on the memory brand, and sets a flag, if non crucial memory is detected. 6. 1660. Even the LP HD6670 is too high a card, the system requirements are stated as. Power figures for DELL Optiplex 755 Mini Tower. Help Me Choose. 29. . At the technical guide (thank's for link to SpeedStep) I didn't find any information about supported max bus clock (MHz) of RAM. Above Optiplex's are a little less old. Enter model or choose from the list below. OptiPlex 170Ln. Kingston Value Brand (KVR) almost never works. 4: SEE FANS spin for 1 second , is very very common. Helps you switch between applications, open documents, and complete daily tasks faster. Yes, that's an i7-2600 SR00B in there! All appears to be going well, but it's only the first day with 16GB. When I start it up I get the Dell screen and able to select F2 setup and get into the bios setting. 0. I really don't know that you'll notice a difference in RAM speed between 667MHz and 800MHz simply using the PC. Find compatible Memory (RAM) for your Dell device - Optiplex Desktops. With appropriate handling of the. 350 MHz / 450 MHz / 525 MHz / 650 MHz. 8 Gig Dimms are a no go FOREVER request denied. Maximum Memory: 4GB: Maximum Memory Per Slot: 2GB: SSD Form Factor: 2. The 780 takes either 1,066MHz or 1,333MHz RAM. OptiPlex. GX620= Pentium D or Pentium4 with 4 GIGS max DDR2 RAM = $100 or less in many places. 4. $1,275. GT 710 yes. Memory connectors. 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. Where to buy. Dell Optiplex 755 Full-Tower Desktop Specs and Details. N650J 2. 0 GB Windows XP Home, Intel Graphics Media Accelerator 3100 32 MB DDR 256 MB (shared). All Dell XPS 630i Memory Upgrades are backed by a lifetime warranty. Civiled. de memoria Ram. Community Dell. Optiplex's 755, 790, 7010. 10 A21 Processor: Intel(R) Core(TM)2 Duo CPU E8200 @ 2. 1,510. ) cpu for 755 is core 2 duo and may upgrade to core 2 quad depending on motherboard Dell DP/N. 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. Example:Crucial Memory and SSD upgrades - 100% Compatibility Guaranteed for Dell OptiPlex 755 Series (Desktop Mini-Tower and Small Form Factor) - FREE US Delivery. Small Business. 95. 1600MHz (DDR3 Non ECC) and: Note: DDR3 and DDR3L. I would like to get input from other people that use the Optiplex 755 and get some input on what they recommend upgrading on the system to make it more of a personal. Buy some contact cleaner and spray the RAM contacts as these desktops love to complain about RAM fault when RAM contacts go bad. 2V - Single Desktop Upgrade Module (Replacement for SNPY7N41C/8G) Visit the A-Tech Store. Your computer supports a maximum of 8GB of memory when you use four 2GB DIMMs; however, 32 -bit operating systems,Anyhow, I have another computer besides the Optiplex 755 with no onboard video card at all. Will have a i7 7700. Maximum memory: 8GB Standard memory: 1 or 2GB removable All compatible upgrades DRAM Internal SSD External SSD Filter Internal SSD for: OptiPlex 755 Series (Desktop. $3163. Guaranteed Compatible with Dell Optiplex 755 Small Form Factor Computer. 1 with 8GB. 0. Alienware. 4 Gb/s) of bandwidth and 8 Gb memory addressability for faster system. Q6600 - Cheaper than dirt. and I want to upgrade my RAM in case of use optimally FSB (MHz). Maximum Size SSD for XPS 8940. Dell Optiplex 755 SFF RAM upgrade problem. 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. 1. 83GHz Yorkfield Quad Core Q9550 12MB, 1333FSB, E0. The i5-2400 supports 32 GB max, according to Intel, so there's no 8GB total RAM limit with the CPU. Also, some Mobo's particularly OEM and other lower quality ones, often do not like having all the RAM slots filled. Power enterprise. Then we started Windows, only 256MBs of Ram out of the 8GBs was available (the OS told us). :emotion-4:Dell Optiplex 755 + Maximum RAM? By Dos_Box in forum Hardware Replies: 4 Last Post: 30th April 2010, 12:05 PM [For Sale] Dell Optiplex 745 - 3GB Ram - nvidia Card. 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 4. 2 device into a 2. 35V operation for memory. Select the department you want to search in. Often I've found those "maximum" specs to be based on the largest dimm available at the time of publish, and not necessarily a system limitation. Free delivery and free returns with a 100% money back guarantee. $19.