com SearchEl 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. 15,010. Tengo 4 memorias ram de 1gb en mi optiplex 755, quiero aumentarla a 8GB. I want to know if I’ll be able to install a 1x2gb and 1x1gb in one slot, and a 1x2gb and 1x1gb in the other to reach 6GB. Architecture: 64-bit operating system, x64-based processor. Below memory compatibility will be DDR3 unless stated otherwise. 275w PSU. exe. 4GB de memória máxima. Design 1st OptiPlex was the first Dell product made with recycled materials in 2007. Exact same specs as the shipped version, but the system will not accept it and will not boot. Check out this thread with practical test that 8GB RAM as maximum for Optiplex 760. upgrading RAM on OptiPlex 755 with 0GM819 motherboard. 5" (SATA) SSD Interface: SATA 3. Upgrading it is somewhat difficult for a DT. 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. 2. Guided selection of your system. Memory Compatibility. This computer supports maximum memory speed of 800MHz DDR2 SDRAM. 0 ports. Something like 0. The memory speeds supported include 667 and 800 MHz DDR2 memory. Power figures for DELL Optiplex 755 Mini Tower. There may be different Versions of this Model (e. Here's. I want to know if I’ll be able to install a 1x2gb and 1x1gb in one slot, and a 1x2gb and 1x1gb in the other to reach 6GB. Buy some contact cleaner and spray the RAM contacts as these desktops love to complain about RAM fault when RAM contacts go bad. 35 V operation for memory. Free delivery and free returns with a 100% money back guarantee. I want to install 64 bit Linux so I got 2 new 2GB memory sticks and replaced the 2 1GB ones, into the same slots. Memory modules supported. Single slot cards with 1 fan can fit. 5GB will be set aside for the OS. 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. 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. 5" bay : Additional information : 9350 9360: 1: 1x M. 21. Memory: 1 GB, 2 GB, 3 GB, or 8 GB 800 MHz DDR2, 2 DIMM slots. 23 gigs of RAM. :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. 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. The manuals all direct me to a label on the chassis, and there is one for Vista, but not XP. version A08 date 02/19/2008 ROM size 4096 KB DMI System Information manufacturer Dell Inc. If you're running Win 7 Home Premium, 64 -bit, then the limit should be 8 GB of RAM in this system. The Mr Memory upgrades below are 100% Compatible for your Dell. g. 89 $ 64. Data Security and Recovery with RAID 1 support ensures real time redundancy for data - helping to keep your business. I previously owned a Dell Dimension E521 that consisted of a AMD Athlon 64 5000+, 4 GB of RAM, and a HD 6670. To get the max out of my 755 MT: CPU = C2Q Q9650; RAM = 8GB; OS is on a Crucial SSD. * Recommended Upgrade You might need to rollback your SSD to a 256 GB model. I use it for some backup and to run older 32-bt software that 64-bit Win10 (Pro) doesn't run. DDR3 and DDR3L are socket compatible, however, It is NOT compatible with systems using 4th Generation Intel (Haswell) processors, which exclusively support 1. Can someone confirm the RAM capacity of an Optiplex GX 280? I bought a used machine, it is fitted with 2 x 512 MB. 4. Above Optiplex's are a little less old. +. #3. 66GHz, 8MB L2 cache, 1066MHz FSB, VT) 8GB of DDR2-800 (PC6400) non-ECC memory. Sep 20, 2011. 4 out of 5 stars 14 ratings. try this called a hard power reset. M. 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. Typical of Dell business machines, they try to keep things as consistent as possible so that moving to a new desktop line doesn't make. Mr Memory recommends you install modules in pairs for Dual-channel performance - View Dual-channel Memory Video. ) - it is much slower than when first purchased. According to the Dell manual, 8GB is maximum. Hi, my PC came with a Samsung 8GB RAM (DDR5 UDIMM 4800MHZ). Dell Latitude 9430 Maximum. 8 Ghz Dual Core Pentium (LGA775), 2x1 GB of 667Mhz DDR2, Integrated. Rp325. The following table lists the memory specifications of your OptiPlex 5000 Small Form Factor. I have multiples of the Optiplex 755 and XPS 420's- They're great little machines for virtualization. 2. Optiplex 755 Manual. It could be bios is malfunctioning. I do have a PCI-E slot in that computer and AGP. 8GHz) Memory Warranty. Dell Optiplex Desktops Support Forum. (hdd can upgrade to ssd. I recently purchased a new Dell Optiplex 755 with an E6750 2. When I start it up I get the Dell screen and able to select F2 setup and get into the bios setting. Free postage. Dear Dell Users. vendor Dell Inc. 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. 512 MB, 1 GB, or 2 GB non-ECC. 8. 2. , whats the max i can go and what are the specs ? i have Hynix 4GB DDR2 667 MHz PC2-5300F ECC 2Rx4 CL5 1. Follow the on-screen instructions to complete the setup. 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. 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). McCandless Twp, Pittsburgh Google Pixel Watch 2. Optiplex. The MT case can take full height cards, The DT and SFF require low profile. $4. 66GHz Yorkfield Quad Core Q9400, 6MB, 1333FSB, R0. Free delivery and free returns with a 100% money back guarantee. DDR2 PC2-5300 667MHz / PC2-6400 800MHz Non-ECC DIMM. 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. 254 sold. Dell Optiplex 755 Full-Tower Desktop Specs and Details. Difference from the Quad's in 780 to the E6850 is minimal for your real life performance. 8V - HYMP151F72. 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. NOTE: If you have the USFF, only 4GB are compatible. Crucial. $250. APM. 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. Even if the BIOS update is from 2007 like mine. 5mm adapter) Internal SSD CT4000MX500SSD1 Configuration ID: CT20740120 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 Chipset. The memory was twice replaced using new Dell. Install modules in. 5" bay : Additional information : 9350 9360: 1: 1x M. $3163. 89 I have two Optiplex 755 SFF running VMware ESX 4. 3. Was: EUR 24. Example: Crucial Memory and SSD upgrades - 100% Compatibility Guaranteed for Dell OptiPlex 755 Series (Desktop Mini-Tower and Small Form Factor) - FREE US Delivery. Dell Poweredge T430 Motherboard in a T420 box? 17. If the BIST LED turns on, the power supply is delivering power to the computer. 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 went from an E8400 to a Q9650 in my 755 MT a ways back. 6" Laptop-#B24. Purchase options and add-ons . Posts / Dell Community /. I am looking to add another 8GB of RAM, but the same memory module is difficult to obtain in my location. Download Dell Optiplex 755 Broadcom LAN Driver - Network Card. Re: Optiplex 755 sff 280PSU low profile graphics card. 35 V operation for memory. 30,340. Dell Optiplex 755 SFF RAM upgrade problem. DDR5 stands for double data rate 5, a type of RAM memory. DELL™ OPTIPLEX XE . Find your system on our list of over 175,000 computers. Memory Type: DDR2 PC2-8500, DDR2 PC2-6400, DDR2 PC2-5300, DDR2 (non-ECC) Maximum Memory: 8GB. System CPU Type. You cannot have 16 gig in USFF models or any model with only 2 Ram Slots. Purchased copy of OS/X 10. The technical guidebook states that 16Gb is the maximum, but this is incorrect. The BIOS update I'm not sure about. GPU - NVIDIA GT 240. 1x 4270E - Screw M2X3 : 9365 : 1: 1x M. 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. Slots: 4. We would like to show you a description here but the site won’t allow us. Kingston high quality Dell OptiPlex 755 DT/MT/SFF Desktop upgrades. gpu can safely upgrade to low profile TDP max 25W. For 4GB, the best option is a 2x2GB matched pair, but the Mobo may not except 2GB RAM sticks. In addition, Dell Optiplex 755 only comes with 7 USB 2. So you can't have 2x 2GB + 2x 4GB (12 GB total). Submit Search. Thank You for your support! Community Dell. Dell OptiPlex 755 User's Guide Publish date: 20 APR 2008. ? o tendré complicaciones, como le aumento la memoria Ram. #5. Example:Crucial Memory and SSD upgrades - 100% Compatibility Guaranteed for Dell OptiPlex 755 Series (Desktop Mini-Tower and Small Form Factor) - FREE US Delivery. DELL ™ optipLEx ™ 755 tEchnicaL guiDE book insiDE thE optipLEx 755. The PSU is a quality part, and the 305W was used in computers with 130W. Tengo una Dell Optiplex 755 que de fabrica viene con 2 Gb. 10 A22 T tonschkDell Optiplex Memory RAM Upgrade install is the easiest and economical way to make this Dell Optiplex 780 Mini-tower computer super fast. It's not in specs, but some people have exceeded RAM in 7020 up. EUR 23. DDR2 PC2-3200/4200 is NOT Supported in ANY configuration. MoBo for Dell Precision 360. 2 device into a 2. 2 slot supports 4X. and I want to upgrade my RAM in case of use optimally FSB (MHz). M. It has a Core 2 Quad q6600 CPU in it, with 2 GB of ram and a PSU 275w. Optiplex SFF Plus 7010, RAM upgrade. . It is the latest version of synchronous dynamic random-access memory (SDRAM). RAM for the 755 (I like A-Tech with lifetime warranty) is quite reasonable. Dell Optiplex 745. 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). downloaded for various Dell's. Alright, so a couple of days ago I picked up a Dell Optiplex 755 from a library for a mere $3. Maximum Memory Per Slot: 2GB: SSD Form Factor: 2. OptiPlex 755 Advanced REMOTE IT Management Dell OptiPlex 755 offers enhanced management and control with Intel® vPro™ processor technology, giving IT staff excellent flexibility, high efficiency, and reduced desktop-side troubleshooting. Thanks for your help so far, I really appreciate it. Maximum internal drives supported : Drive configurations supported (max) PCIe lanes : Parts needed to install a M. OptiPlex 3090 Tower. Espero ter ajudado. I'm impressed you got an Optiplex 755 to take an SSD; though SSD's aren't listed in the manual. Dell Optiplex 7010 Small Form Desktop, Intel Quad Core i7. Intel Core2 Quad Q9650 (Clock speed at 100%) with NVIDIA GeForce GTX 750 Ti (Clock speed at 100%) x1 will produce only 2. 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. 750ti is a 60w card that needs 300W psu. 66 GHz Intel Dual Core CPU and having a front side bus of 1333 MHz. 6 Sustainable Materials 60%Dell Optiplex Desktops Support Forum. $37. Maximum Memory; 4. Re: Dell Optiplex 755; picky with memory Mixing RAM brands/specs commonly results in problems. I have recently acquired a Optiplex 755 DT. 0. Thanks to Dell’s innovative approach to scalable remote client management, the OptiPlex 755 offers you a choice between several systems-management options. 6Ghz cpu and 2Gb ram DELL 0DR845 OptiPlex 755 MB with Dual Core E2140 skt 775 1. Aurora R4, computer won’t boot with Intel Xeon E5 2697 v2 in LGA2011 socketOptiPlex 790 Desktop. 2 posts · Joined 2008. - RAM: 16GB (8x2GB) @ 5200Mhz - Storage: 1TB NVMe SSD, 1TB MicroSD- Display: 1200p@120Hz Dell Poweredge R720 (Server):- CPUs: 2x Xeon E5-2697v2 @ up to 3. But the Dell optiplex 755 SFF comes with only a 275 Watt power supply. compare. Random Access Memory (RAM) is a type of hardware that your computer uses to store information. 7040 takes 6th gen CPU's. 89 $ 64. 0. Unless you bought it already, I suggest A-Tech RAM. Question Maximum number optical. I also specified 2 GB of PC2-6400 800Mhz of DDR2 memory as part of the original configuration that was supplied by Dell. In 2012 windows 8. Later in the boot process, it will. We would like to show you a description here but the site won’t allow us. Unless you bought it already, I suggest A-Tech RAM. Memory connectors. 00 Used;OptiPlex 755 upgrade. 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. 4GB or Greater System Memory Capability: A 64-bit operating system is required to support 4GB or more of system memory. 89. 765 inches centimeters PCIe x16 Slot Dimensions: (HxL) Height 4. Enter model or choose from the list below. 66GHz (2 CPUs), ~2. I want to upgrade my processor to the Core 2 Quad Q9650. - RAM tests include: single/multi core bandwidth and latency. Add to Cart. unfortunately not possible if you want to use the 755 MT case which is BTX and only accommodates BTX motherboard. Copy current url to clipboardHowever, is says the minimum watt supply requirement for this GPU is 400 Watts. Slots: 4. Buy Memory RAM Upgrades for your Dell Optiplex 755 [Desktop] - 100% Compatibility Guaranteed. 0 ports, whereas Dell Optiplex 780 features 8 USB 2. Exact same specs as the shipped version, but the system will not accept it and will not boot. Motherboard: Dell OptiPlex 7010. 4. Browse CommunityDell optiplex 755 maximum ram support Alright. Guaranteed Compatible with Dell Optiplex 755. A 3rd party application (SIW) informs me that the maximum RAM capacity is 1024MB. 2: M. Core for Core improvement is minimal. Dell. Table 4. With those specs you can use the PCs for the tasks you mentioned. Replaced a L305P-01 (305W) PS and upgraded the memory to 4Gb. 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. A list of all Dell OptiPlex models through the years. Optiplex 755. RAM & SSD Upgrades. I'm trying to donate this to a charity, but I want to do so with a clean Windows installation. OptiPlex Desktop Computers - OptiPlex business desktop computers offer space-saving features, advanced security, manageability and are a choice for everyday commercial. 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. 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. Crucial Memory and SSD upgrades - 100% Compatibility Guaranteed for Dell OptiPlex 745 Series (Desktop Mini-Tower and Small Form Factor) - FREE US Delivery. 0Gb/s • 540 MB/s Read, 500 MB/s Write. Addressing Memory Configurations. Some compatible GPU's: 30w GT 1030 GDDR5. F886J 2. System Board Connectors 14 System Board Connector Maximum Allowable Dimensions, Graphics/Video Controller 15 External Ports/Connectors 20 Communications – Network. 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. Sep 15, 2016. All other brands will fail the memory check at boot. . Good day Sirs, I have Mini Tower OptiPlex 755 with 0GM819 motherboard. Over 2 years experience on this forum. If you upgrade the CPU, consider an SSD and max the RAM if not already. 5-inch internal SSD • SATA 6. I have two Optiplex 755 SFF running VMware ESX 4. 66Ghz, 95w and 1333mhz bus speed. Find compatible Memory (RAM) for your Dell device - Optiplex Desktops. $64. 2GB 240-pin PC2-5300 DDR2-667 non-ECC non-Registered DIMM. Set personal price drop alerts! If you have Windows, System Info in the Control Panel will tell you total use of the RAM. Power figures for DELL Optiplex 755 Mini Tower. 35 V operation for memory. the modern intel motherboards are almost all ATX (or proprietary). 9 out of 5 stars based on 14 product ratings (14) $74. Dell OptiPlex 755 Small Form Factor [SFF] Desktop Memory RAM & SSDs. 64. 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. 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. But Dell never tested the 755 with higher than 8GB RAM. 6: POWER cord back now. 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. $3727. Max memory for Optiplex 780. Unlock faster load times, improved responsiveness, and seamless multitasking for a smoother computing experience. product OptiPlex 755 version unknown serial 8TQGJ3J UUID {4C4C4544-0054-5110-8047-B8C04F4A334A} SKU unknown family unknown DMI Baseboard vendor Dell Inc. 0 GHz max. My OptiPlex came with licenses for Windows XP and Vista, but I can't find the product key for XP. Find the service tag (a seven digit code of letters and numbers) written on a sticker on the back or. have a Dell Optiplex 755 MT that was purchased as a barebones w/o a processor, memory or hd. The 780 takes either 1,066MHz or 1,333MHz RAM. I also tried other brand (Kingston with. At the technical guide (thank's for link to SpeedStep) I didn't find any information about supported max. Base GPU Frequency. The Dell OptiPlex 755 gives you advanced security options to help keep your data secure real-time. 115. The 780 has socket type LGA775. 1 with 8GB. My Dell recognized the new memory configuration when I turned it on. Description Values. These are the Quads we validated -. So my system has the following: A07 bios installed. From the Optiplex 755 Tech Guide, 800MHz is the max RAM speed for it. System Model: OptiPlex 755 BIOS: Phoenix ROM BIOS PLUS Version 1. 17-03-2021 20:00 PM. Dell uses proprietary I/O front cables, headers, and control boards. System Type X86-based PC. 66 GHz Intel Dual Core CPU and having a front side bus of 1333 MHz. 2 slot : Parts needed to install a M. FREE delivery Fri, May 19. FREE delivery Mon, Nov 13 . MT, SFF, AIO). All Mr Memory recommended upgrades are 100% compatible with your Dell. While they can take HDD's in the TB's, the max listed for SSD is 256 GB. Intel Core 2 duo E7500 2. Isso é algum problema de configu. Where to buy. 6300, 667MHz made by pacific sun at frys electronics in downers grove, il, total cost, $34, much faster on single/multiple window apps and web searching. Hi cutlassvillager1, The differences are fairly minor. Crucial Memory and SSD upgrades - 100% Compatibility Guaranteed for Dell OptiPlex 755 Series (Ultra Small Form Factor) - FREE US Delivery. O. unconfavated memory (Max 8GB on 64-bit operating systems) Expansion slot 2 x8GB 4X2GB Dell OptiPlex 745 DDR2 PC2-5300 Memory. Thread starter h2l; Start date Feb 16, 2012; Tags. The GPU's coming with the optiplex are ***. Minimum memory. CPU; Core i5-3470 Intel $149 Bench 63%, 223,595 samples:. Hard Drive: GB means 1 billion bytes and TB equals 1 trillion. Visit the A-Tech Store. 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. 18,530. It appears that you already have the maximum amount of RAM. Optiplex 5000 Micro. OptiPlex. 2: M. 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. 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. Nov 13, 2023. 81 $ 50. Optiplex Desktops. Though you planned on 12GB total RAM, you'll still notice a difference in performance going from 4GB to 8GB. Backed by a lifetime warranty Kingston memory. Where to buy. 376 / 11. 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. SAMSUNG 870 EVO SATA III SSD 1TB 2. It's max RAM capacity is 8GB of 800MHz DDR2 RAM, Non-ECC. It has a Core 2 Quad q6600 CPU in it, with 2 GB of ram and a PSU 275w. •Intel vPro. Top Solutions. Dell 755 optiplex walleyeblugill. I checked each stick, and individually they work, just not as a pair. It would be nice if the GTX1050 would run because it could move to your next machine. Hi everyone, I'm a new user here and have a question for you. Where to buy. Boost GPU Frequency. 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. (example: DDR3L) DDR3 is not backward-compatible with DDR2. – TJJ. Also read up on pagefile. 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. Then on the screen to the right, select RAID Autodetect / ACHI. You need to sort out the RAM problem first before tackling anything else. KingstonMemoryShop stocks memory upgrades for your Dell OptiPlex 755 DT/MT/SFF Desktop to boost performance and capacity. just replaced 2x512mb memory and purchased 4x1gb (max for four slots) ddr2, PC2-. 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. Search titles only By: Search Advanced search… Search titles only. PowerEdge Hardware General. 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. Posts / Dell Community / Desktops / Optiplex Desktops / Dell Optiplex 755 RAM issues . 731 / 6. The upgraded system was a Dell 755 MT. The CPU-Z program would tell you how fast it is or isn't running.