Question about ASUS Intel 440BX Chipset P2B-S Motherboard

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Ram memory upgrade not recognized in system info.

I installed a 512mb DDR 3200 400Mhz ram in my HP Pavillion and it's not being recognized by my system info. Why and/or how can I get it to show up in my system info.

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Re: Ram memory upgrade not recognized in system info.

Does your mother board ddr2 compatible? do you have the manual of your motherboard? because there are brands listed in your manual which are compatible. if you have an existing ddr installed temporarily uninstall this and try this ddr2 512mb alone and let it run, if a beep beep sound occurs that means this is not compatible with your computer. remove this and bring this together with your ddr that work to your supplier, ideally the cast latency timer of these should be the same including the brand. hoping that this will help you

Posted on Dec 06, 2007

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I have a Hp Pavilion 733b with chipset 845g, i have 1gb of ram but just recognise 256mb

Product: HP Pavilion 733b Desktop PC

Motherboard: FIC VG31

[ First International Computers ]

Motherboard specifications;

Memory Type: DDR Sdram
Memory Speed: DDR Sdram at 266MegaHertz, or 200MHz
(PC2100, and PC1600, respectively)

Memory Sockets: Two. For Dual Inline Memory Module/s.
Maximum Memory: -> Maximum TOTAL Amount for motherboard.
Maximum Amount for EACH ram memory slot: 1GB

So far looks good, BUT;

1) Is the Ram Memory Non-ECC?

2) Un-Buffered? (Un-Registered)

3) Voltage: Does it use 2.5 Volts?

JEDEC standard for DDR Sdram ram memory voltage is 2.5 Volts (DC)
FIC is going to set the ram memory default voltage at 2.5 Volts.

Point? DDR Sdram at 2.6 Volts, or higher, may not work.
Betting the motherboard doesn't have SPD, and the ram memory may not either.

4) Ram Memory frequency rate:
What frequency rate of ram memory are you using?
(Excuse me,...'Speed')

The Intel 82845G Northbridge chip, will only support DDR Sdram at a -> Maximum <- frequency rate, of 266Megahertz. (266MHz),

I have seen websites offering DDR Sdram at 400MHz for this board.
Maybe there is a BIOS update, I don't know. But going with the standard BIOS program that is installed, and info for the Intel 845G support, I would say this = No.

Processor Front Side Bus (FSB) support is either 400MHz, or 533MHz.
Ram memory typically operates at HALF of the Processor's FSB.

That would be 200MHz (PC1600), or 266MHz (PC2100), respectively.

[Half of 533 = 266.5
It's just rounded down to 266 ]

Can you read a manufacturer's label on the ram memory modules?
If so post what you see in a Comment.


[Sometimes when upgrading ram memory, it may take you to turn the computer completely off, and wait 1 minute. Then turn it on, and let it run for a couple of minutes, then turn it off. Wait 1 minute, turn it back on.

IF, the motherboard does have SPD, and IF, the Ram Memory has SPD, it may take a couple of 'Cold Boots', for BIOS to recognize the Ram Memory.

Some of the old mobo's were just like that.
{MOtherBOard ]

Jul 11, 2012 | Motherboards

1 Answer

Installing two ram( ddr400 512mb and pc400 512mb )

If you are referring to computer RAM always put the largest ram module closest the CPU central processing unit

try to keep the same brand and type of ram the same ie: ddr ddr3.......
you will be able to read the ram type on the ram already inside

make sure you secure the ram modules by pressing the levers down firmly at both ends of of there sockets

make sure your computer is turned of before you attempt this
be sure to wear an earth strap before touching anything inside your computer
the ram modules sockets are located near your cpu

If you're not sure if a module is right for your system, use the Crucial Memory Advisor tool for a list of guaranteed compatible modules.

hope this helps you

Mar 21, 2012 | Motherboards

1 Answer

I have 266 mhz 256MB RAM with intel D845 board. I want to upgrade it to 512mb or 1GB. Can you please tell me whether 333/400mhz will be suitable or where can I get it in hyderabad

hlo hyn you should get RAM 200/266 MHz of 512mb or 1Gb

below are the specifications your motherboard can support.

  • Two DIMM sockets supporting 2.5V (only) 184-pin 200/266 MHz Double Data Rate (DDR) SDRAM DIMMs with gold-plated contacts
  • Unbuffered non-ECC DIMMs only
  • Maximum total system memory: 2 GB; minimum total system memory: 64 MB
  • Serial Presence Detect (SPD) DIMMs only
  • Suspend to RAM

for more info click this link

Aug 18, 2011 | Intel D845GBV (BOXD845GBVL) Motherboard

1 Answer

RAM Slot does not recognize more than 512MB ( 184 )

Consider updating your motherboard bios.

Also make sure that your memory is correct for this system:

- Max. capacity of system memory: 2GB DDR or 2GB SDRAM
- DDR x 2, DDR266/200 non-ECC, un-buffered memory
- SDRAM x 2, PC133/100 non-ECC, un-buffered memory

Jun 26, 2010 | Asrock K7VT2 Motherboard

1 Answer

Need to upgrade ram currently has 512MB DDR

Go here: Click on Scan My System. This will require an Active X download which is perfectly safe. They will scan your system, tell you what you can install with the price. I have used this site for years and they have great prices and are very reliable and safe.

Jan 03, 2010 | Intel Desktop Board D845GEBV2L...

2 Answers

Hi..i have a P4m800-M7 rev 3.1 motherboard which recently had only 1 512MB DDR 400mhz RAM.. itried to install an additional 256MB DDR 400mzh ram but the system recognizes only the 512MB RAM. I've tried...

Check that your memory is supported, according to Biostar documentation for your motherboard:

Single Channel Mode DDR2 Memory
Registered DIMM and ECC DIMM is not supported

Re-check the memory module's specifications.

Nov 03, 2009 | EliteGroup P4M800-M7 Motherboard

3 Answers

I have an asus k8v-mx motherboard running only 512 mb of ram what type of ram would suit this mother board and could i fit a 1 x 2mb ram instead of 2 x 1mb?

Dear Sir,

*********** board is Asus old p4 Mother board.It supports maximum 1GB RAM of DDR 400(DDR1). According to your post your computer having only one 512 MB working RAM. If you want good purformance you can upgrade your computer by purchasing another 512MB DDR400 RAM and install it on another RAM slot.If your computer have only one working RAM slot,you can purchase 1GB DDR400 RAM & install it on older RAM place. I think it solves your problem.if you have any problem come back with more information. I will try to assist you more accurately.

good luck

Aug 05, 2009 | ASUS K8V-MX Motherboard

1 Answer

Asus p5 vdc-x motherboard not recognizing ddr2

HI it sounds like a speed issue,check your
motherboard info for support or if you
have no manual download it from asus site
check for ddr2 support via the manual

regards john sykes

Jun 30, 2009 | ASUS Motherboards

2 Answers

Want to upgrade memory

maximum memory is1GB for your motherboard, you can only install 2 x 512MB, sorry.
Refer to this page: Hp site


Mar 26, 2009 | Motherboards

1 Answer

Want to add memory to Gateway 700x

Upgrading RAM on your Gateway 700X (DDR) Computer is easy, Gateway 700X (DDR) Computer takes the PC3200 DDR SDRAM DIMMs. Supports Dual Channel DDR. RAM Type, and comes installed with 512 MB (removable) of RAM.
You can upgrade your Gateway 700X (DDR) Computer to up to a maximum of 2.0 GB RAM, the Computer has 4 sockets to install RAM, already with 512 MB (removable) standard RAM installed. For best Computer performance use the maximum amount of allowed RAM per slot for your system.

Dec 08, 2008 | Motherboards

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