Question about Dell OptiPlex GX620 PC Desktop

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I have a Dell Optiplex GX620 with a 64-bit Intel chip, and 6 GB of RAM, and I can't install any 64 bit versions of Windows on it.

XP x86 works, but nothing higher. XP 32 bit is limited to 4 GB of RAM, which is why I want to change to 64 bit. When I try to install Vista x86 or x64, I get a STOP error (something about memory management). Windows 7 (x86 and x64 both) just freeze while SETUP boots, with no STOP error. I ran the MEMTEST utility on the Vista DVD and it says the RAM is fine, so what gives?

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  • seann_giffin
    seann_giffin Jan 18, 2013

    I should add that XP x86 runs perfectly fine, aside from the 4 GB cap. No blue screens, no errors, nothing abnormal.

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Your ram may be bad but not fried so windows cant deyect it also may need to reset your ram aet in advanced setting ,although your system sjhould detect that and adjust so check system in control; panel see if its is matchiing ie .. if u put 4 gb ram it may say 3gb ,if it has 4 gb then yiur settings systems icon control panel double click avanced system settings click on it then click on advaced scroll down to virtual memory it should be for 4 bg. ram would read 4000 MB OR REAL CLOSE TO ADJUST IT,, AL;SO U MUST HAVE 64 BIT OS XP AND REINSTALL OS PLUS PICK 64 BIT DRIVERS FROM MANUFACTER OF PC TO RUN 64 BIT CANT HAVE 1/2 AND 1/2 [32 +64] DONT MESH FOR 64BIT...32 CAN HAVE BOTH NOT 64

Posted on Jan 18, 2013

  • seann_giffin
    seann_giffin Jan 18, 2013

    I have 6 GB installed and WinXP x86 says 3.5 GB installed and 0.5 reserved (probably overflow for Video). The problem is Setup x64 for XP, Vista and 7 all fail before they even begin. Will try reseating RAM.

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Posted on Jan 02, 2017

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SOURCE: DELL OptiPlex GX150 Upgrading

Yes, $100.00 was too much for that system. I saw a refurbished Dell GX270 2.8Ghz 512MB 40GB HD CD/R/RW Windows XP Pro COA w/SP3 and all updated drivers installed for $114.00 + $5.24 shipping (amazon). Also see a Refurbished IBM ThinkCentre A50P(8193A3U) Intel Pentium 4 2.4GHz 512MB DDR 48x CD-ROM 40GB HD for $149.99 + 3 day free shipping (NewEgg). There are a lot of great reasonable sellers on Ebay but it's waters are getting more and more filled with Sharks as well (as well as many other sites, Just used Ebay as an example). I know this info doesn't help much now but hopefully in the future it can. You see a certain price on a system, do a full search on that same system and compare prices and shipping charges on what you find out there.

Posted on Feb 10, 2009

  • 166 Answers

SOURCE: pc won't boot

Any leaking brown stuff means blown capacitors- DELL (along with other manufacturers) were sold some "fake" capacitors and they didn't have all the correct ingredients to perform like they should. After about 2-3 years of use they started to break. DELL was replacing them mobos for awhile, even after the warranty ran out, but that deal is probably over. I know because I was able to replace several of them - out of warranty.
As far as your hard drive goes, Do you have an IBM Deskstar, also a.k.a as DeathStar? If it says it can't find the hard drive and you did not change the cables or mess with the jumpers and you have checked that the cables did not come loose from the motherboard and drive, then you most likely have a dead drive. You can always try to recover from the recovery console using CHKDSK. I have recovered a few drives this way. If you do recover then get your files off immediately.

Posted on Mar 09, 2009

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