Question about Compaq Presario s4020wm (DK214AR#ABA) PC Desktop

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I just bought a ram totalling 1g but still reading 480mb. i was thinking its the bios upgrade issue but i dont know how to deal with it.

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Did you only install one 1 gig stick if so thats the problem ram has to be in matching pairs so for 1 gig you need two 512 sticks

Posted on Jun 14, 2009

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1 Answer

Fail upgrade. 1GB of RAM missing from BIOS, also lost sound.


First, what is the computer Make and Model? You didn't supply the original Memory or the new Memory? DDR? DDR2? DDR3? ETC.? PC- ? MHz? Pin-? You bought 2x2GB's of WHAT? Does your Computer have Shared Graphics Memory?

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Ram Installation more than 3G ex: (4G or 5G) will read 3.25 G How? i am using 2 units of KVR800D2N6/2G pulse 1G original>


Probably your Operating System is a 32bit. 32bit OS can only read up to 3GB of RAM regardless of the capacity of RAM you install. For example you installed 2pcs of 2GB RAM, that makes it 4GB in total, 32bit OS will only recognize 3GB. upgrade your OS to a 64bit OS and you can upgrade your RAM up to 8GB depending on how much your motherboard can handle.

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Compaq EVO N1020V Not reporting RAM correctly


This sounds as thought he RAM is faulty.

You need to have installed 2 x 512 MB DDR 266 SoDIMMs and not 1 x SoDIMM.

If you have placed 1 x 1Gb SoDIMM in ther EVO this would account for you only seeing 480Mb of RAM.

Sep 24, 2009 | Computers & Internet

2 Answers

Upgrade to 2g memory


If its a desktop it should be fine with two 1 gb sticks. Check to see how much ram is being shared for video. You can see that in the bios setting. Not sure how much can be shared but it may read differently depending how much system ram is being shared for onboard memory.

Sep 03, 2009 | Compaq tc4200 Tablet PC

2 Answers

I bought the proper matching two 1Gig sticks of memory to upgrade my 2G mHz TC4200. I installed them and it wouldn't boot, so I swapped back the 1G stick to the original 512mHz chip and it booted. Then I...


Ok, Rob, did you buy the memory from Compaq/HP? Or is it a 3rd party set (ie. Viking, PNY, etc.)? Sometimes, Compaq/HP computers are VERY picky about the specifications of the memory that the mother boards will use. 

If you bought them from a 3rd party vendor, I would recommend taking them back and exchanging them for another brand or even just another set of sticks, but, before we go that route, let's try something else. 

Install a 1gb stick and the 512Mb stick and then go into the BIOS and see how much ram is being registered there. If it reads all 1.5Gb of ram, then we know it is something else, if not, then we have somewhere else to look. 

Assuming the BIOS registered the full amount of ram, try removing the 512Mb stick and then boot the computer, enter the BIOS and see if it is reading the 1gb stick properly. Assuming it did register the 1gb properly, swap the 2 1gb sticks out and repeat. If it did NOT register the lone 1gb stick, try moving the 1 gb stick to the other socket, and checking the BIOS again. If that works, then swap the 1gb sticks out, repeat the BIOS check.
Assuming that after you swap out the 2 sticks and they both work as lone sticks, go back into the BIOS and look for an advanced page or an option to turn on a "Diagnostic Mode" or "Memory Test", and run the memory test on each stick- one sitck at a time, to see if there is a minor/major memory addressing issue, with either stick. 

If they both pass individually, then, try reinstalling them both together and check to see if you can reach the BIOS with them both in place. If not try putting the 512 in the 0 or first memory slot and the 1gb in the second slot, then repeat the memory test, swap the 1gb sticks again, and repeat the memory test on the second stick- (the thinking here is that if it is not the memory sticks themselves, perhaps it is the motherboard or one of the sockets for the ram that is bad).

If you can reach the BIOS with both 1gb sticks in place, but, not actually boot to the operating system, then it is possibly a timing issue- this SHOULD BE AUTOMATICALLY configured, but, if you are an overclocker or a "performance wonk" you may have changed a relevant setting in the bios that controls the speed at which the memory and the processor interact. Or it could be a problem with windows hardware monitor not accepting the changes to the amount of memory in the machine. To test this possibility try going into "safe mode" at boot up, after the BIOS screen/Compaq logo has come and gone.

If you can boot into safe mode and not into regular mode, it is a problem with something in windows. Sometimes, just booting into safe mode alone will fix it, sometimes, it is necessary to run the restore DVD on the computer to fix the problem windows is having/ or alternatively reinstall windows without running the restore DVD, using this method will usually fix windows, with out deleting all of your data. You might have to reinstall a few programs afterward, but, your pictures, mp3s, document files, etc. will still be on the drive. Running the restore DVD almost always deletes your data, so USE THAT SOLUTION AS A VERY LAST RESORT, ONLY AFTER YOU HAVE TRIED EVERY other option I have given you. 

Good luck, and hope this helps. 

Sep 02, 2009 | Compaq tc4200 Tablet PC

1 Answer

Sli pc keeps crashing


Ok, here's the deal. the total power grab from the cards total is 800 watts. your power supply can only send 400watts max to the cards. everything should be ok if only one card is used but, if you enable the second card, you system will become unstable and it will crahs(shutdown). i recommend upgrading to a power supply that can handle this load. You can run one card but, not two at this time. you will need a power supply that is in the 800- 1000 watt range. this will fix this issue.

Apr 01, 2009 | Computers & Internet

5 Answers

What is the optium ram upgrade for a lenovo 3000 y410


DDR2-PC5300, and the max it will accommodate is 2GB (2 x 1GB).

Hope this helps you

Mar 17, 2009 | Lenovo 3000 Y410 Notebook

4 Answers

2G Memory Upgrade


I had similar problem with CORSAIR XMS2 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory

If this is your RAM:
Corsair 1024MB Value Select PC2-4200 (533MHz) DDR2 RAM, 128Mx64non-ECC, 240-pin DIMM, Unbuffered, CL4, Lifetime warranty (VS1GB533D2) Then it is high density. You need low density to work, look for one ending with an 8, not 64.

Feb 26, 2009 | PC Chips P23G Motherboard

2 Answers

After upgrading RAM 1G to 1.5G


The BIOS will recognize the new ram when the pc is turned on. If the amount is being reported correctly and there are no beeps you are good to go.

Feb 26, 2009 | Acer Aspire One Netbook 8.9" Notebook

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Memory issues acer t180 ud360a, no boot up with all (4) ram slots filled...


i had same problem with mine, i have the acer aspire ast180-ud360a, dont put the same memory next to each other, u have to stagger it, so it looks like

------------> [1gb] [512mb] [1gb] [512mb] <--- correct setup

and not like

------------> [1gb][1gb][512mb][512mb] <--- incorrect setup

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