Dell optiplex 755 max ram. Backed by a lifetime warranty Kingston memory. Dell optiplex 755 max ram

 
 Backed by a lifetime warranty Kingston memoryDell optiplex 755 max ram  I'm wondering which ddr 2 companies' RAM work well with my computer, if someone has the same computer it would be great to hear

Please choose your Dell Optiplex Computer model: OptiPlex 160. The memory speeds supported include 667 and 800 MHz DDR2 memory. 66 GHz Intel Dual Core CPU and having a front side bus of 1333 MHz. upgrading RAM on OptiPlex 755 with 0GM819 motherboard. 2. So I guess this should be high density. Dell Optiplex 960. 30-07-2011 16:00 PM. 5” Internal Solid State Drive, Upgrade PC or Laptop Memory and Storage for IT Pros, Creators, Everyday Users, MZ-77E1T0B/AM. 5" bay : Additional information : 9350 9360: 1: 1x M. Memory for Dell Optiplex 755 Ultra Small Form Factor Computer, Upgrade Optiplex 755 Ultra Small Form Factor Memory with 100% compatible 755 Ultra Small Form Factor Dell RAM modules from memorystock. If the BIST LED does not turn on or the PSU fan does not spin correctly, the. luiscarlos. I also Googled and ran across this thread. 66Ghz, 95w and 1333mhz bus speed. To get the max out of my 755 MT: CPU = C2Q Q9650; RAM = 8GB; OS is on a Crucial SSD. OptiPlex 160L. Hi,. This is just a guess though I am not Dell engineering and I don't have a Cpu to test. 0 to 2. Dell only lists what was available and tested with that system when new. Optiplex 755 Manual. I have two Optiplex 755 SFF running VMware ESX 4. With 1GB GPU= 4GB RAM. Thanks! I have this problem too (0) Reply. It hung on the "Starting Windows" section of the install. 667 MHz 240-Pin. A 780 can take a Q9650 Intel Core 2 Quad 3. 6: POWER cord back now. By tech_guy in forum Hardware. According to the Dell manual, 8GB is maximum. O. Produce video, photography and music. I've taken a humble Optiplex 755 Desktop chassis, upgraded the RAM to 4gb, upgraded the HD to a 60gb OCZ Vertex 2E Solid State Drive, added a PCI-E full-height riser, and upgraded the graphics card to the maximum possible that would fit into the case. 8 Gb/s (DDR2 800. Solution dextermat Nov 22, 2016 Should be 16 gb max source :more info here You have to choose between 2 x 8 gb ddr2 OR ddr3 because you cannot mix them. de memoria Ram. 23 gigs of RAM. It has a Core 2 Quad q6600 CPU in it, with 2 GB of ram and a PSU 275w. Design 1st OptiPlex was the first Dell product made with recycled materials in 2007. Connect the power cable. 1. We have a Dell OptiPlex 755 where the diagnostic lights will often show a 3 4 pattern. Memory Type & Info. GTX 750Ti and Q9650 will work great together. Crucial. The OptiPlex 9020 is designed to seamlessly integrate into the office environment. If you put 2 sticks 800MHz in your 745, then a stick with 667MHz, the system will operate all the RAM at 667MHz. I went from an E8400 to a Q9650 in my 755 MT a ways back. 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. product OptiPlex 755 version unknown serial 8TQGJ3J UUID {4C4C4544-0054-5110-8047-B8C04F4A334A} SKU unknown family unknown DMI Baseboard vendor Dell Inc. yes it is true, i still use my original dell optiplex gx280, 10+ years old. Copy current url to clipboardHowever, is says the minimum watt supply requirement for this GPU is 400 Watts. I've got a Nvidia Geforce GT220 Video card, which is a low profile video card, it can consume maximum of 58 W, and this video card requires minimum of 300 W to work properly w/o. It appears that you already have the maximum amount of RAM. 115 2. $28. The entire 8GB memory range is available to 64 -bit operating systems. It needn’t be a high paid position (The CEO could give up 1% of his yearly pay/bonuses to fund the department and give some deserving people an 8$/hr job. Eligible for Return, Refund or Replacement within 30 days of receipt . That's why higher than 8GB is unsupported and companies, like Crucial, that make RAM, will tell you the highest is 8GB. Dear Dell Users. com. Small Business. INSIDE THE OPTIPLEX XE . (I think this is due to newer cards being out of spec. 5" (SATA) SSD Interface: SATA 3. Power figures for DELL Optiplex 755 Mini Tower. KingstonMemoryShop stocks memory upgrades for your Dell OptiPlex 755 DT/MT/SFF Desktop to boost performance and capacity. 07-01-2013 05:00 AM. gpu can safely upgrade to low profile TDP max 25W. 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. Optiplex 5000 Tower. $1,275. sp. View PDF. From the Optiplex 755 Tech Guide, 800MHz is the max RAM speed for it. 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. 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. OptiPlex Desktops & All-in-Ones; Inspiron Desktops & All-in-Ones. Storage: Up to. Q9500 - Almost as cheap as dirt. GPU - NVIDIA GT 240. Nov 13, 2023. Replaced a L305P-01 (305W) PS and upgraded the memory to 4Gb. 25-01-2019 18:00 PM. That's why higher than 8GB is. Dear Dell Users. OptiPlex. I obviously want to max it out, but dirrerant site such as Kinston and Crucial give differing amounts as to the maximum you can install. 5" bay : Additional information : 9350 9360: 1: 1x M. DELL ™ optipLEx ™ 755 tEchnicaL guiDE book insiDE thE optipLEx 755. Crucial is guaranteed to work in Dell's. 0. The biggest issue with Dell memory is the need for low density memory. unconfavated memory (Max 8GB on 64-bit operating systems) Expansion slot 2 x8GB 4X2GB Dell OptiPlex 745 DDR2 PC2-5300 Memory. Dell Optiplex 755 SFF RAM upgrade problem. 99. 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. We would like to show you a description here but the site won’t allow us. 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. 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). The Dell OptiPlex 755 gives you advanced security options to help keep your data secure real-time. sub zero. 2. I will be getting myself another dell optiplex 7050. cannot be used by computer memory; therefore, the amount of memory availab le to the operating system is less than 4GB. Type. Solved. Going one step further Crucial RAM states that 64GB of RAM total is compatible as per their site here. Crucial. 5 out of 5 stars 15 Yes, crucial brand ram from genuine micron factories is about the only memory that will ever work in a dell computer. 8GB ram ddr2 @ 800Mhz will work, as I’ve upgraded from 4gb in my 755 DT. 4GB Stick for Dell Optiplex Series 990 (Mini Tower) 990 (Small Form Factor) 990 (Ultra Small Form Factor). 4. 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. Minimum memory. My current specifications are as follows: CPU - Intel Core2 Duo E6550 @ 2. Find replacement parts and upgrades for Your Dell system by selecting a brand or product model. I want to upgrade the RAM, but I started building computers in the DDR3 era and don't really know how DDR2 compatibility works. OptiPlex 170L. 4: SEE FANS spin for 1 second , is very very common. Search; Shop; Support; Community. 0Ghz. They both came with 2 x 1GB Hynix PC2-5300U. Is it possible to upgrade my Q6600 cpu to a Q9550 / Q96. 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. What is the fastest CPU this will support? Can I get a PS greater than the 280W that is in it now?. Download the PDF file and follow the instructions for installing hardware, software, and drivers. I have recently acquired a Optiplex 755 DT. Or fastest delivery Thu, Jul 6. If your Front Side Bus is 800mhz then you need PC2-6400. Moon Township Gaming Desktop PC. A-Tech 8GB Memory RAM for Dell OptiPlex 7060 SFF - DDR4 2666MHz PC4-21300 Non ECC DIMM 1Rx8 1. pretty simple way to make a fast computer even faster. Kingston Value Brand (KVR) almost never works. A while ago I purchased 2 × 2 GB Sticks of RAM for my Dell OptiPlex 320. 6. Description Values. Desktop/Workstation RAM upgrade » OptiPlex 780 by Dell. Pre-Installed with Windows 7 Professional, Upgraded to Windows 10 Pro, & upgraded to Windows 11. 89 $ 64. Intel pentium dual core. I too made the high density mistake with my. OptiPlex 3090 Micro. 3. 1 GB; single-channel: 512 MB Maximum memory 64-bit operating system: 8 GB 32-bit operating system: 4 GB BIOS address F0000h Computer Information Chipset Intel Q35 Express Chipset w/ICH9DO Data bus width 64 bits Address bus width 32 bits DMA. 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. 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. Something I've mentioned before, if my PC really was 64% faster, I really didn't notice much difference. NOTE: If you have the USFF, only 4GB are compatible. Hi, I've got an Optiplex 755, 0pu052 motherboard, currently running 2 1 gb ddr2 667 mhz ram sticks, windows xp pro 32 bit, and would like to increase to 4GB the limit of 32 bit. Artemis08. Manufacturers. 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. Total RAM can go up to 16GB (4GB per stick). Manufacturers. I used the 16GB Corsair 8 GB DIMM 1600 MHz PC3-12800 DDR3 Memory (CMZ16GX3M2A1600C9). 99 New; $55. Only one thing changes RAM speed. 4. 275w PSU. You cannot have 16 gig in USFF models or any model with only 2 Ram Slots. I have a Dell optiplex 380 SFF and want to max the ram. Something like 0. Maximum Memory Per Slot: 2GB: SSD Form Factor: 2. Ad. Hello everyone, I would like to give a last upgrade to my old Optiplex 755 buying 8. Top Solutions. N652J 3. My desktop is an Optiplex 755 and it has 4 gigs of memory and running on Windows XP. This system supports 8GB (2 Dimms) of DDR3. Experts in Dell Optiplex compatible upgrades. Exact same specs as the shipped version, but the system will not accept it and will not boot. Over 2 years experience on this forum. 15,010. 2. Can someone confirm the RAM capacity of an Optiplex GX 280? I bought a used machine, it is fitted with 2 x 512 MB. I primary use my computer for Adobe Photoshop and photography items. Motherboard: Dell OptiPlex 7010. Maximum RAM Supported: 8 GB: Connector Type: 1 x Display Port 1 x Ethernet 1 x Mic, 1 x Audio 7 x USB 2. DELL™ OPTIPLEX™ 760 TECHNICAL GUIDEBOOK V1. 9GHz Processor, 4GB Memory, 160GB Hard Drive, DVD, Windows 10, WiFi (Renewed)'] Dell Optiplex 780 SFF Desktop PC - Intel Core 2 Duo 3. 95. 30w-47w Quadro's P400, 600, & 1000. My upgrade will be: CPU - AMD Athlon 3000G. GPU - NVIDIA GTX 970. 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. Lifetime warranty on all Memory / RAM. 0 (6Gb/s) Show full device specification. com suggested ocz blades which are unavailable. Dell ships non-ECC 184 pin SDRAM memory only. Safely scan your system for max upgrade options. Boost GPU Frequency. 3 4. 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. 40GHz, 2400 Mhz, 2 Core (s), 2 Logical Processor (s) BIOS Version/Date Dell Inc. 5 out of 5 stars 15. I currently have them all "maxed" out at 8GB RAM apiece, which is the listed maximum for each. 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. Read more. 2GB. My Dell recognized the new memory configuration when I turned it on. 5-inch internal SSD • SATA 6. The processor is a Core2Quad, which can be upgraded. 0. WIN10 New 28 Aug 2022 #1. 5GB will be set aside for the OS. Aug 28, 2018. Here's. $999. The latest BIOS for your 755 is A22. If the BIST LED turns on, the power supply is delivering power to the computer. Dell Optiplex 745. Maximum internal drives supported : Drive configurations supported (max) PCIe lanes : Parts needed to install a M. Hello, I currently have a Dell Optiflex 7010 SFF, but I'm hoping to upgrade the hardware and need of your help. Report. Maximum internal drives supported : Drive configurations supported (max) PCIe lanes : Parts needed to install a M. . 0. 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. 81 $ 50. I just bought a couple cheap dell optiplex 755s off craigslist to use as servers (the 6550 Intel Core2 dual core ones). if your looking at one of these i would reccomend them because they blend into everyday use and tasks. Intel Core 2 duo E7500 2. 99. Optiplex 7010 memory question. . 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. Apr 5, 2013. 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. Where to buy. A 500-GB SSD is ~$400 which is pretty pricey for an upgrade to an old system, on top of costs for added RAM, 64-bit OS, and possibly upgraded CPU and video card. It's not in specs, but some people have exceeded RAM in 7020 up. 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. Hi, my PC came with a Samsung 8GB RAM (DDR5 UDIMM 4800MHZ). I'm looking to upgrade my computer so i can max out its ram and was wondering if this ram will fit. C. 33 GHz, 6 MB Cache. 1660. I used a Q9650 in my previous 755, maxed the RAM to 8GB, used an SSD, and the thing flew. It could be bios is malfunctioning. 18. 8 Ghz Dual Core Pentium (LGA775), 2x1 GB of 667Mhz DDR2, Integrated. 765* 6. 6. Personally I would go with ddr3 because the 8 gb sticks are. 21. Difference from the Quad's in 780 to the E6850 is minimal for your real life performance. These are the Quads we validated -. Safely scan your system for max upgrade options. 2GB Kit 2 X 1GB DDR2 Memory for Dell Optiplex 330 740 745 745c 755 Desktop PC2-5300 240 pin 667MHz DIMM RAM. Marvin572 Discussion starter. The CPU-Z program would tell you how fast it is or isn't running. Model M323R1GB4BB0-CQK-0L. Thats why server boards that have more memory use regsitered buffered ram and support 128 256 512 gigs etc. Here's the Intel specs on an Intel motherboard with a H61 Express Chipset (same as OptiPlex 390) - Max Memory 16 GB using 2 DIMMs (in other words, 2x8GB). 19-05-2010 15:00 PM. speedstep. RAM - 6GB DDR2. 8GHz Intel Celeron 430 n/a Serial ATA RAID, Ultra ATA/100 PCI/PCI Express 16x 80. 89. All Mr Memory recommended upgrades are 100% compatible with your Dell. T. McCandless Twp, Pittsburgh Google Pixel Watch 2. downloaded for various Dell's. (hdd can upgrade to ssd. 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. F886J 2. DMI System Enclosure. make sure you use thermal paste for the installation. 19-11-2012 09:00 AM. N650J 2. 8V • 256Meg x 64 •. - no new coolers are needed. 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. Dell Optiplex Desktops Support Forum. 2 slot supports 4X. 74. 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. Memory RAM | 2GB Kit 2x1GB Dell OptiPlex 755 - 800MHz, Unbuffered, 1,8V CRK2048D2/DLD800-S002764 max 8GB Large stock fast delivery. Publish date: 20 APR 2008. Free delivery and free returns with a 100% money back guarantee. Helps you switch between applications, open documents, and complete daily tasks faster. It has a E2160 1. I'll buy my first Dell computer, which is a Dell Optiplex 755 Small Form Factor. 4GB de memória máxima. Depending on how much RAM you need, if you have any RAM heavy apps, 7020 has max listed RAM @ 16GB and 9020 @ 32GB. Yet another working Optiplex 390 MiniTower setup with 16GB of RAM. Speed was pretty good though. Aims to increase memory bandwidth while keeping power consumption low in comparison with its predecessor,. It might not be obvious to you yet, but it's pretty obvious the 755 can't take i7's, AMD Ryzen, and etc. Buy Kingston Dell Optiplex 755 USFF/Ultra Small Form Factor Desktop Memory RAM & SSD upgrades. 2V - Single Desktop Upgrade Module (Replacement for SNPY7N41C/8G) Visit the A-Tech Store. Best choice memory for Dell Optiplex 755. 1 with 8GB. the maximum RAM it supports is only 8GB. 1GB Memory Upgrade for Dell OptiPlex 755 DDR2 PC2-5300 667MHz Desktop Non-ECC DIMM RAM (PARTS-QUICK Brand) $699. Disconnect the power cable from the PSU, and wait for 15 seconds. 8V - HYMP151F72. just replaced 2x512mb memory and purchased 4x1gb (max for four slots) ddr2, PC2-. 4GB Kit 2 X 2GB DDR2 Memory for Dell Optiplex 755 760 GX280 Ultra Small Form Factor Desktop PC2-6400 240 pin 800MHz Non-ECC DIMM. 22-04-2013 09:00 AM. Remember, chances are mixed RAM won't work in a 780. Tangerang Selatan ICA JAYA MANDIRI. #5. Dell Latitude 3570 Win 11 i5 8GB 200GB SSD 15. In addition, Dell Optiplex 755 only comes with 7 USB 2. 8 V. Dell Optiplex 755/760 in the form factor of your choosing 4 GB DDR2 PC2-6400 RAM (2 will work, 8 is great)(there are 4 slots)(max per stick is 2GB) 40 GB or larger SATA HDD USB Mouse and Keyboard, Monitor and other accessories as necessary. Even the LP HD6670 is too high a card, the system requirements are stated as. More speed with little fuss: Installing and testing RAM modulesOptiPlex 780. (PC2-5300U) 667mhz. 2 slot supports 4X. Above Optiplex's are a little less old. I'm looking to upgrade the CPU on a Dell Optiplex 755 Desktop system. 83GHz Yorkfield Quad Core Q9550 12MB, 1333FSB, E0. Dell Latitude 9430 Maximum. Optiplex SFF Plus 7010, RAM upgrade. Maximum Memory; 4. So if anyone wants to replace the innards of an OptiPlex 745 with an OptiPlex 755, you will also need to buy a new I/O panel for it, P/N XT029 (cable), CN312 (board), and TP004 (metal bracket). 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. Os módulos de memória suportados 256 MB, 512 MB, 1 GB, 2 GB ou 4 GB não-ECC4GB. •Intel vPro. PC Dell optiplex 755 Slim Core 2 Duo HDD 250gb ram 4gb. It's good to know that installing CompuRAM memory as accessories or spare parts for your Dell OptiPlex 755 has no influence on the manufacturer's warranty . The Dual slot card requires some slight changes - remove the bracket as it is not required to hold in the card once it is in the PCI-e slot. 89 inches centimeters Length 6. 0. 13. Or fastest delivery Nov 7 - 8 . 4 Gb/s) of bandwidth and 8 Gb memory addressability for faster system. 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). Maximum Size SSD for XPS 8940. I'm impressed you got an Optiplex 755 to take an SSD; though SSD's aren't listed in the manual. If you are using a 64-bit operating system, your computer will support a maximum of 8 GB (2-GB DIMMs in each of the four slots. Search. com says 16GB for the SFF and they guarantee their kits to work. I want to extend the memory to maximum Can anybody clearify this Statement from the product brief: "Delivers up to 12. 48 delivery Jan 9 - 12. Install modules in. A 3rd party application (SIW) informs me that the maximum RAM capacity is 1024MB. The actual. Optiplex 755. 4. 00GHz Yorkfield Quad Core Q9650, 12MB. Pregunta sobre memoria ram en Dell Optiplex 755. 30,340. Drive Type: SATA 7200 RPM HDD. Find Replacement Memory (RAM) for your Dell computer by selecting the product brand and/or model to find parts compatible with your Dell device. $6489. When I inserted them, I was greeted with a series of beeps, and a system that would not boot. Optiplex Desktops. I purchased a Dell Optiplex Micro 5000 computer which came with a SK Hynix SODIMM 8GB (HMAA1GS6CJR6N) memory module. . Thread starter cookie_monster_17; Start date Sep 25, 2018;. I previously owned a Dell Dimension E521 that consisted of a AMD Athlon 64 5000+, 4 GB of RAM, and a HD 6670. Hi cutlassvillager1, The differences are fairly minor. Posts : 862. O. The computer is a Mini tower dell optiplex 755item 3 DELL 0DR845 OptiPlex 755 MB with Dual Core E2140 skt 775 1. x Just about any cheap NVIDIA late-model PCIe video card. com Search El equipo OptiPlex 755 soporta memorias DDR2 SDRAM de 667 o 800 MHz, para que el ordenador reconozca los 8 GB de memoria, es necesario que el equipo tenga instalado un sistema operativo que trabaje a 64 bits. $50. OptiPlex 210L OptiPlex 210Ln OptiPlex 3000 Micro OptiPlex 3000 SFF OptiPlex 3000 Tower OptiPlex 3010 Desktop OptiPlex 3010 Mini Tower OptiPlex 3010 Small Form Factor OptiPlex 3011 All-in-One. 2 device into a M. I added 250 gb hard drive 2gb memory and a E8400 Dual Core processor. Starting at CAD $949. Maximum memory is 64GB on Tower/Small Form Factor, 32GB on Micro. Helpful. $19. So you can't have 2x 2GB + 2x 4GB (12 GB total). It has 4 Ram slots (2 Banks of 2) and each can take 8Gb of Ram. I also specified 2 GB of PC2-6400 800Mhz of DDR2 memory as part of the original configuration that was supplied by Dell. Max memory for Optiplex 780. 4x4GB DDR3-1600MHz 1. 4. Find your system on our list of over 175,000 computers. Dec 27, 2016. You need to sort out the RAM problem first before tackling anything else.