Insert the installation media you created, and then restart your PC. Shop now!Shop 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 problems with a Dell GX620. ASUS TUF Gaming A17 Notebook - 17. Number of Memory Slots: 4; PCI Express x16: 1; Onboard Video Chipset: Graphics Media Accelerator 950; CPU Type:. We have installed a new hard drive We installed NEW windows XP PRO, with Proper Keycode ( keycode sticker is still attached to top of unit ). SO-DIMM PC2-3200 (DDR2-400) Computer Memory (RAM) 512 MB Capacity per Module. The models shown here are those most commonly purchased for use by faculty and staff who obtain support from ECN's User and Desktop Services group. Dell Inspiron Laptop B130 driver. I inserted them in two of the 4 slots, next to each other and left the existing 512k RAM in the remaining 2 slots. Customer Rating: 4. Your PC doesn't know the difference. 5. Windows XP 32-bit and Windows XP 64-bit. You need a 64 bit OS to see more than 4 gig. Crucial Scanner. Start a Conversation. What you need Step 1 How to unplug and discharge before repair Power down your PC and remove the power cord from the back. 6" LCD Back Cover (Silver) $20. There are four memory connectors on this motherboard which hold 533MHz and 667MHz DDR2 SDRAM memory model. Free shipping. 6ghz CPU, 4gb of GSKILL PC2 6400 memory, 120gb SSD, and Sapphire 6570 video card. The ram I used is: MUSHKIN 996558 4GB (2X2GB) DDR2 PC2-6400 800MHZ DUAL CHANNEL KIT 2x2GB / 800MHz. Dell OptiPlex 9030 AIO All-In-One Memory Access Door Metal Cover Panel 3VN080. Find compatible hardware (hard drives, memory, batteries) and accessories (speakers, headphones, keyboards, mice). speedstep. With 4 memory slots and a 64 bit CPU and OS it will see 8 Gigs of Ram in bios but you cant use 8. The configuration Dell provides comes with a Intel Pentium 4 or Celeron n/a Serial ATA, Ultra ATA/100 PCI/PCI Express n/a, Integrated Intel GMA 950, video memory shared with system memory. In agreement with JOcean. Computer Components & Parts; Memory (RAM) Computer Cases & Accessories; CPUs/Processors; Fans, Heat Sinks & Cooling; Graphics/Video Cards;Below memory compatibility will be DDR3 unless stated otherwise. It has 4 DIMM slots with a 4 GB capacity. #1. 40ghz and and 4 gb of ram. Ideally, you want to install memory in matched pairs, so I would suggest you buy 4x the 1 GBP RAM sticks and not use the PC4200 stick currently in the system (the PC6400 RAM will be throttled back to that slower speed if you were to add one or three faster pieces to the system. 4GHz - refurbished for $40. 80GHz. 1-3-2: First 64 K RAM test in progress or failure: Troubleshoot the memory and memory slots. The GX620 can support 2 gig modules. 2GB (2X1GB) Dell OptiPlex GX620 Series RAM Memory DDR2. 95 shipping. The Computer has 4 sockets (2 banks of 2) to install memory, already with basic factory installed standard memory installed. ) 3. Supports Dual Channel DDR. Windows 7 home 32 Bit Pentium 4. I subsequently removed the 2x1gb. Mini tower computer (9 pages) Desktop Dell GX620 Specfications. 00 –Desktop/Workstation RAM upgrade » OptiPlex GX620 by Dell. 4GB 2x2GB Dell OptiPlex 960 RAM Memory DDR2. ) If your computer was built after 2012 and is making any other beep code, contact technical support for further help. Memory RAM Type, and comes installed with of Memory. Go to step 1 RAM should be replaced if the computer has memory issues. Memory/RAM. 26-01-2010 08:00 AM. 00. 99. Dell OptiPlex GX620 MT (305W PSU) - BIOS A11. We have over 3000 new GX620 desktop PC's (since Jan 2006) and have seen an increase in memory failures, 20+ to date. 2 x 2 GB RAM - 4GB DDR2 667MHz @ 533MHz. your manual is HERE. 0Gb/s • 540 MB/s Read, 500 MB/s Write. Shop by Category. tif files. CMS 1GB (1X1GB) DDR2 5300 667MHZ NON ECC DIMM Memory Ram Upgrade Compatible with Dell® Optiplex Gx620 Dt / Mt / Sff - A103. 2018-09-11 18:27:54. 4. 4GB 2x2GB Dell OptiPlex 755 Ultra SFF RAM Memory DDR2. 80 ghz. Dell Optiplex gx620, RAM limits. Joe Hotze Ford Mercury has been in Salem, Illinois since 1973. Step 2: Run the detect drivers scan to see available updates. 99. 0. Aunque el chipset soporte una cpu, debe hacerlo también la bios y ademas el VRM (lo que da el voltaje a la cpu). I decided to make the RAM up to 4 GB so I removed both 512 MB modules and the faulty 1 GB module with a view to having four 1 GB. Download and install the latest drivers, firmware and software. Desktop Mainboard For DELL Optiplex GX620 MT HJ780 F8098 HH807 X9682 CJ334 Motherboard Fully Teste Used: Optiplex GX620 Tower 400GB HDD, 4GB Ram, DVD-Rom, Windows XP Professional For DELL Optiplex GX620 MT Desktop Motherboard 0HH807 HH807 CN-0HH807 F8098 X9682 Perfect Test Before Shipment AliExpressNote: On any OptiPlex built since 2012 (that is, 7010/9010/9010 AIO), Dell has stopped using all beep codes except for the Memory Failure code. I am trying to upgrade the ram of 1 GB (512 MB + 512 MB) to 2 GB. 50:. . The boot up Dell splashscreen also updated itself and now displays the Pentium D logo instead of the Pentium 4 logo. The Logitech m310 wireless mouse is compatible with the following operating Systems: Windows XP, Windows Vista, Windows 7,Windows 8, Mac OS X 10. . FYI. OptiPlex. information about your operating system, devices, and technologies, see. 4. 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. 00 Used. I take it you really want to keep the 620 going. So I have/had a Optiplex GX620. If Windows installs, the hardware is compatible. I recently was unable to boot my computer because there were two faulty memory modules as diagnosed by the Dell test program. and chose this viewer from the list that appears. The Dell OptiPlex GX620 desktop computer features an Intel Pentium D chipset running between 2. Sometime the problem is not always diagnosed as memory 1st and takes several hours to trouble shoot, after the system board, power supply and sometime memory swapped out twice before. 5 but whatever. Dell. . Get the best deals on Crucial PC3-17000 (DDR3-2133) Bus Speed 1 Module DIMM Computer Memory (RAM) and find everything you'll need to improve your home office setup at eBay. One module was a 512 MB and the other was a 1 GB module. If i start with 3 GB then system getting restarted again and again. . 8. 00GHz Intel $98 Bench 30%, 4,281 samples. 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. Desktop Mainboard For DELL Optiplex GX620 DT CJ335 HJ781 FH884 F8096. Are you looking for the reference guide of Dell OptiPlex GX620 in Portuguese? This PDF document provides you with detailed information on the features, specifications, and troubleshooting of your desktop computer. I currently have 2Go (2x1Go) of Crucial PC2-5300 installed, but the memory speed remains at 533. Jan 30, 2018 3 0 510. CMS 4GB (2X2GB) DDR2 5300 667MHZ NON ECC DIMM Memory Ram Upgrade Compatible with Dell® Optiplex Gx620 Dt / Mt / Sff - A88. In terms of storage capacity, the Dell OptiPlex GX620 provides a total of 250 GB. FREE delivery Wed, May 24. Dec 14, 2013. BAD DVD. Dell USB Memory Key 128MB, 256MB and. 2Ghz, 2GB of DDR2 RAM, and a 250GB hard drive. I have the dell Inspiron 620 and i am pretty sure that i can pu 8gb ram. Gx620 optiplexDell optiplex gx620 dt intel p4 3. Move the 2-pin jumper plug back to the password jumper. Gx620 optiplex troubleshooting ifixitDell optiplex gx520 user manual pdf download Gx620 optiplex motherboardDell optiplex gn reference and installation manual pdf download. ) for PCIe. ) I went onto Amazon and found 4x1GB ram made for GX620. 5 out of 5 stars. dell. Windows 8 Pro 64-bit installs without incident on the GX620 SFF. However you can get the audio drivers that are VISTA WDDM drivers from Microsoft. When I check the memory in the BIOS (version A11) it reports two 2 GB DIMMS. 1-3-2: First 64 K RAM test in progress or failure: Troubleshoot the memory and memory slots. When I try to play big games like Saints Row The Third, the framerate becomes very choppy and the game is unplayable. . Search; Shop; Support; CommunityDell OptiPlex from 2005 to 2009 followed Intel's BTX standard. Los optiplex gx520 o gx620 solo aceptan micros netburst, no core, o sea que lo mas que acepta el gx520 es un pentium D 915, y el gx620 un pentium D 960, porque tiene mejor fuente. I have Dell GX620 Tower with intel i945P/PL/G/GZ chipset Motherboard model (0HH807). My GX620 currently has two 1GB memory modules but as I now have Windows7 64-bit, what is the maximum memory I can install? The upgrade section says 4GB (with the warning that a 32-bit OS will see. Fast. 8Ghz and 3. The BIOS sees all four 1Gb modules, and I am running Windows XP Pro x64 Edition, so I SHOULD see 4Gb in the OS. In terms of storage capacity, the Dell OptiPlex GX620 provides a total of 250 GB. x or later. (Which has a maximum of 25 channels. Connector: 1 x 24-pin Motherboard Power, 2 x SATA Power, 1 x 4-Pin Molex, 1 x Floppy Power, 1 x 4-Pin ATX Power, Input 100-120V or 200-240V, output 280W Max. Install memory in pairs. The Dell also comes with an Acer 22in monitor, Altec Lansing speakers, keyboard and microsoft mouse. com FREE DELIVERY possible on. Posted by: mohamed ali. Improve Dell Optiplex GX620 for gaming. Current I am using Pentium D 925 (3. Check Details. 5” floppy. 7x. Just upgraded my Optiplex GX620 CPU: From a Pentium 4 521, 2. Do you need desktop computer memory? Best Buy has 4GB, 8GB, & 16GB of RAM for your computer. Our OptiPlex GX620 test system came equipped with a 64-bit-capable 3. Pentium D 3. The OptiPlex™ GX620 system supports up to 4 GB of memory in two channels. 2 x Western Digital 80GB WD800JD Sata II. tif files. What is the warranty on these memory? GX620 and 4Gb RAM. c16fkr. . The storage media used in this desktop is a hard. Used: Optiplex GX620 Tower 250GB HDD, 4GB Ram, DVD-Rom, 17" LCD Monitor, Windows Professional. However, even though I am using windows 7 (64-bit), the total physical memory is only 3. com. 240GB 2. Pentium D 2. Whether you are looking to configure your OptiPlex GX620 yourself or upgrade it, equipping a device with sufficient RAM is one quick and easy way to ensure smoother and more efficient operations. Discover amazing Dell technology through Dell products like desktops, 4K monitors, touchpads, laptops & more for personal, business or gaming solutions. 0 out of 5 stars Memory for Dell OptiPlex GX620 Series Desktop. 8, and 2gb ddr2 ram. If any upgrade needs to be done, you can only upgrade to. Get the best deals for Dell DELL GX620 PC Desktop at eBay. When I try to add the 4th Gb, the computers won't boot and give a beeping. Was terribly slow with only 1GB installed. The GX620 can support 2 gig modules. The Software Apps required are: SetPoint, Logitech Control Center, Connect. Both a running windows 7 pro. Dell Optiplex 7010 Plus micro mini Business Desktop Core i7 mff 16GB RAM. 2) What implications are there at leaving the page file set to "no paging file". i am trying to turn this into a better computer for gaming, can someone tell if its possible and what new cpu, graphics card and ram I need to run a game like valorant at decent speeds like 720p and not crazy expensive parts. Win XP 32 bit. Replace the computer cover. Computer Components & Parts; Memory (RAM) Computer Cases & Accessories; CPUs/Processors; Fans, Heat Sinks & Cooling; Graphics/Video Cards; Interface/Add-On Cards; Laptop Replacement Parts; Motherboards; Motherboard & CPU Combos;Buy 4AllDeals 1GB RAM Memory Upgrade for The Dell OptiPlex GX620 Desktop, Mini Tower, Small Form Factor and Ultra Small Form Factor (DDR2-400, PC2-3200): Memory - Amazon. Posts / Dell Community / Desktops / Desktops General - Read Only / OptiPlex GX620 ram speed fo. 80ghx 2 gig ram -. Thats why you should only buy ram that is Specifically Compatible with your system. Jan 30, 2018 #1 My current desktop computer is running on original Dell 2 x1GB PC2-5300 555Mhz ram, working very. Dell's data sheet says this Dell Community / Desktops / Desktops General - Read Only / Dell Optiplex GX620: RAM qu. Laden Sie das Referenzhandbuch herunter und erfahren Sie, wie Sie Ihr Dell-Gerät optimal nutzen können. Part of that is used by system BIOS and Graphics memory. I have noticed after further testing that it opens ok on the original Optiplex Gx620 PC if I reduce the physical ram to under 1gb (have tried both 512mb and 768mb and both times it worked ok). Dell Optiplex GX620 Tower Desktop. Shop by Category. Run the Dell Diagnostics. 0 GB, fill all the slots with the max allowed memory per slot for your Computer. Side Refine Panel. The Ram is LOW DENSITY INTEL compatable DDR2 Ram. 1 Message. 4GB 4 X 1GB DDR2 PC2-5300 667Mhz Dell OptiPlex GX620 DT/ MT/SFF Memory RAM. The RAM upgrade worked perfectly but it appears the 32 bit version limits it to 4GB . com. 8Ghz and 3. My GX620 currently has two 1GB memory modules but as I now have Windows7 64-bit, what is the maximum memory I can install? The upgrade section says 4GB (with the warning that a 32-bit OS will see. Trang Chủ; Máy tính, máy văn phòng; Máy tính; Kết quả tìm kiếm "gx620 core" Main Intel H81M-Asus Express - 1000 Cpu Core I3/Core I5/Core I7 . (example: DDR3L) DDR3 is not backward-compatible with DDR2. These are usualy used in dual channel Please. Dell Desktop computer Tower Optiplex GX620 2. Nvidia Geforce 6200 video card. The memory clock speed of this desktop is. To a Pentium D 945, 3. OptiPlex GX620 User's Guide is a PDF manual that provides detailed instructions on how to set up, operate, troubleshoot, and maintain your Dell desktop computer. com FREE DELIVERY possible on eligible purchasesThis remedy Is definitely Top Of The outstanding because of the Better Fee Hurry though , to access the Dell Optiplex GX620 Intel Pentium 4 2800 MHz 40Gig Serial ATA HDD 1024mb DDR2 Memory DVD ROM Genuine Windows XP Professional + 17" Flat Panel LCD Monitor Desktop PC Computer Professionally Refurbished by a Microsoft. Try using the Windows Picture and Fax Viewer for . $2. This full-featured mainstream. CPU. Dell Kh290 System Board For Optiplex Gx620 Sff-Kh290. "Changing the mainboard" will make the computer into a machine that is something other than a GX620 and I'm going out on a limb here by assuming that it would VOID the customer's warranty, if. Or fastest delivery Sep 14 - 18. Free Shipping. 2. This has been tested and it is in good working See pictures for further The hard drive is included, but it has been wiped. 1-3-4: First 64 K RAM. For model-specific information, see the User Manual of the Dell desktop. Note: On any OptiPlex built since 2012 (that is, 7010/9010/9010 AIO), Dell has stopped using all beep codes except for the Memory Failure code. Thread starter techlikeagirl; Start date Jan 30, 2018; Toggle sidebar Toggle sidebar. Cbs326 asked the Desktop Forum to advise on improving a PC's memory. PCIe SSDs increase performance by getting rid of the SATA interface (Which so far has a maximum of 10 channels. Get the best deals on Dell PC Mini Desktops and find everything you'll need to improve your home office setup at eBay. 4. and chose this viewer from the list that appears. Find compatible hardware (hard drives, memory, batteries) and accessories (speakers, headphones, keyboards, mice). 00 New. exe. compare. Memoria/RAM. 5 GB of RAM, and a Radeon HD5450 Graphics Card installed. 4. La GX620 soporta una CPU Intel 945 Express con 32kb de caché Nivel 1 y 5120mb de caché crítico Nivel 2. If the built-in self-test LED turns on, then the power supply unit. Where to buy. Smaller games, like Tropico 4, work pretty well, but are still a little. ). Oct 8, 2012 #1 I have a Dell Optiplex gx620 motherboard and have installed 8GB of RAM memory. Where to buy. $129. 6ghz CPU, 4gb of GSKILL PC2 6400 memory, 120gb SSD, and Sapphire 6570 video card. A-Tech 4GB (2X 2GB) Memory RAM Kit for Dell OptiPlex 755, 745, 740, GX620, GX520, 360, 330, 160, FX160, (MT, DT, SFF, USFF) - DDR2 667MHz PC2-5300 Non-ECC. Dell optiplex gx620 ram maximum. 5GB) running the latest version of Windows XP. The memory clock speed of this desktop is 533 MHz and it supports non-ECC memory. Start a Conversation. . Quick reference guide (48 pages) Desktop Dell OptiPlex GX620 User Manual. Right-click the file and select Open with. It will not handle 64 bit Windows 10, only 32. -Intel® Pentium® D 945. 1-3-4: First 64 K RAM odd. Does anyone with a long memory happen to know which Dell desktop machines came from the factory with Dell/Nvidia Geforce MX440 graphics cards. 40GHz Intel Bench 32%, 3,806 samples. (4) Refurbished Dell OptiPlex 3020 Small Form Factor Computer PC, 3. Compatible Dell Desktop Model: Optiplex GX520 GX620 740 745 755 210L 320 330, Dimension C521 3100, New Style GX280. Another use case it does well is. Publish date: 01 JAN 2006. Laden Sie das Referenzhandbuch herunter und erfahren Sie, wie Sie Ihr Dell-Gerät optimal nutzen. trâm Đ/C. Unsolved. Upgrading RAM on your Dell OptiPlex GX620 Desktop Computer is easy, we carry compatible RAM Memory Upgrade for Dell OptiPlex GX620 Desktop Computer, the Dell OptiPlex GX620 Desktop Computer takes the PC2-4200 DDR2 SDRAM DIMMs. Free shipping. Suchen Sie nach einem Referenzhandbuch für Ihren Dell OptiPlex GX620? Hier finden Sie eine PDF-Datei, die Ihnen alle wichtigen Informationen über die Funktionen, Spezifikationen, Fehlerbehebung und Wartung Ihres Desktop-Computers bietet. Shop F8098-U Dell System Big Savings, Free Shipping, Buy at Now! DELL Optiplex GX620 Motherboard HH807 DDR2 RAM LGA775, 55% OFF. 3. 8 out of 5 stars: 5. Pentium D 3. But don't have the dell dell optiplex gx620. Dell Optiplex GX620 250gb hdd Win10 7 home Pentium 4 2. This system was purchased surplus. Mini tower computer (9 pages) Desktop Dell GX620 Specfications. Small Business. SO-DIMM Computer Memory (RAM PC-100 Bus Speed 128 MB Capacity per Module). 3 Inch - 16 GB RAM - 512 GB SSD - AMD Ryzen 7 6800H - RTX 3050 - Mecha Grey - TUF707RC-DS71 - Open Box or Display Models. 4x. ). compare. 2 gig ram. Foreks son dakika High hopes: analysts keep strong expectations for the. A. 4ghz 1gb ram 160gb hdd with dvd Manual de instruções dell optiplex gx620 (221 páginas)Optiplex gx620 manual. $81. $19. 250 gig hard drive. Shop by Category. I've seen it run on a 380, but very herky-jerky just for the internet. For some reason, I'm only able to put in 3 Gb of memory. Thanks for answering. Did the memory run at any point at 800 Mhz? if the system is Dell Optiplex GX620, which has a motherboard with the 945G chipset then the maximum official memory frequency supported is 667 Mhz: Community Dell. Maxtor 7L250 250GB HDD. Safely scan your system for max upgrade options. Shop by Category. Step 1: Identify your product above. 2Ghz, 2GB of DDR2 RAM, and a 250GB hard drive. 2. How to run the self-test without the button on the PSU. Compatible Components (from 23 PCs) Popular components in PC builds with the Dell OptiPlex GX620 Motherboard. 0GHz) CPU but I want to upgarde it. After 15 seconds, connect the power cord back to the PSU. DDR1 SDRAM Computer 256 MB Total Capacity Memory (RAM) DDR1 SDRAM Computer 256 MB Total Capacity Memory (RAM) Side Refine Panel. I want to buy the best CPU that is compatible with my pc. 35 V operation for memory. T. (Technically 3. 6GHz Pentium 4 660 CPU, 512MB of RAM, and an 80GB hard drive--standard fare for a business computer. These GT710 cards do not work in GX620. 5GB ram. . (2M Cache, 3. If the ram is not INTEL compatable it will not work. czarsun. Anyhow, XP 32 bit will only see ~4gig of ram. 912PC Dell, Inc Dell Vostro 3550 15. Windows 8 Pro 64-bit installs without incident on the GX620 SFF. This memory is 533 MHz DDR2 memory. $3. 99. A-Tech 4GB (2X 2GB) Memory RAM Kit for Dell OptiPlex 755, 745, 740, GX620, GX520, 360, 330, 160, FX160, (MT, DT, SFF, USFF) - DDR2 667MHz PC2-5300 Non-ECC DIMM Modules. Sep 28, 2013. This table shows the approximate calendar year during which select Dell computer models were originally released. Video memory 2 MB (upgradable to 4 MB) SGRAM 1x PCI G1 1998: Intel 440BX AGP set: Pentium II 266-333, 350-450 or Celeron 266-400 MHz: 66 or 100. Mini tower managed pc systems (174 pages)27-07-2011 11:00 AM. Desktop/Workstation RAM upgrade » OptiPlex GX620 by Dell. Bios A11 is required for ram faster than PC 5300. Dell Desktops Community Support Forums all models. A. 5” floppy disks. Please answer as soon as possible. Pentium D 2. Hi there, I now own TWO USFF Optiplex GX620's 1)One has 2GB Ram and a P4-950D 3. Oct 8, 2012. 32GB RAM, NVIDIA GeForce MX550) All-in-One Desktop - White (i7720-7173WHT-PUS) $1,199. FREE delivery Sep 15 - 19. According to "Small Form Factor Computer Specifications" inside the manual, this motherboard accept 533 and 667 MHz DDR2 modules, it means PC2-4200 and PC2-5300 modules. You can also find links to other useful resources and manuals in different languages. This particular unit is equipped with a P4 3. primary uses: email, netflix-- media PC, music, database work (MS Access, mostly) occasional non-serious gaming. A-Tech 1GB Memory RAM Stick for Dell OptiPlex 755, 745, 740, GX620, GX520, 360, 330, 160, FX160, (MT, DT, SFF, USFF) - DDR2 667MHz PC2-5300 Non-ECC DIMM Module. Plug the power cable to the computer and wait for 10 seconds for the CMOS to clear. Hi, I recently bought a cheap GX620 on ebay for my daughters first PC and it currently only has 1GB RAM. Add to Cart. $29. Show More. My Pc is an OptiPlex GX620 , 3Gb RAM DDR2 , Nvidia GeForce GT 730 , DT version. Computer Components & Parts; Memory (RAM) Computer Cases & Accessories; CPUs/Processors; Fans, Heat Sinks & Cooling; Graphics/Video Cards; Interface/Add-On Cards; Laptop Replacement Parts;There is nothing that can provide you the list that says it is end of life because Dell provides technical support and part replacement till the warranty is active and when the production of any particular model is being stooped, then we can consider as end of life system model from Dell. i just don't know if i can put 2x4 gb sticks that run at 1600 mhz(pc3-12800). This site downloads a small program that scans your PC. Your system can hold 4GB of memory, Your better off doing 4 x 1GB, or 2 x 2GB of memory, Memory Type 533-MHz and 667-MHz DDR2 SDRAM Memory connectors 4 Memory modules supported 256-MB, 512-MB, 1-GB, or 2-GB non-ECC Minimum memory dual-channel: 512 MB; single-channel: 256 MB Maximum memory 4 GB BIOS address F0000h. DELL OPTIPLEX GX620 PC TOWER NO HDD 3GB RAM PENTIUM 4 @3GHZ *PARTS* Opens in a new window or tab. If that’s listed, you MUST download it and install it in order for your main chipset to run the drives as fast as it can. This is sometimes the case when the computer won't boot, or simply runs too slow for comfort. If you HAVE installed the main chipset drivers, and the IAA if that applies, if the computer is still running slower than you remember, then try setting the mboard’s bios Setup to defaults, or better still optimized. 2 x NEC DVD +-RW ND-3530A.