Question about ASUS P4B266 Motherboard

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Upgrade from 512MB to 1GB

I have an ASUS P4B266 MB with 512MB RAM which works well. I can put this RAM in slot 1 or slot 2. If I remove the 512MB RAM the BIOS tells me the RAM test doesn't pass. If I put the newly purchased 1GB RAM in either slot 1 or slot 2 nothing happens, the BIOS doesn't even call out any diagnostics. The specs for the RAM and the specs in the MB manual are identical, PC2100, DDR 266, DIMM, unbuffered non-ECC, SPD. The RAM spec is non-parity but the MB manual doesn't say anything about parity. Any ideas??

paul

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  • paulj1x Mar 15, 2008

    Thanks Brad. I've tried three different sticks, all with the same
    result. It appears to me that the BIOS never even gets started or
    crashes soon after it gets started. I've left the video card out so
    that the diagnostics will tell me that there is no video card, but it
    doesn't even get that far.



    paul

  • paulj1x Mar 15, 2008

    Thanks BigZ1981. Yes, when I left the 512MB in and added the 1GB, the first time I powered on I got a CPU overclocking error (I think, the audio isn't very good), but on 10 subsequent power ons I got nothing. By the way, I'm not overclocking, and I do have SPD enabled in the BIOS.

  • paulj1x Mar 17, 2008

    I may have found the answer. I'm being told that this motherboard uses the Intel 845D chipset which only supports low density DIMMs, and the new ones are high density DIMMs.

    paul

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3 Answers

Only 512 slot 1 then 512 slot 2 are only supported of your motherbord

Posted on Aug 14, 2008

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Have you tried both modules together? (leave the 512 in & add the 1G)

Posted on Mar 15, 2008

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  • 46 Answers

The specs on the memory are correct, so you purchased the correct type of memory for this motherboard. If your getting no video when you power on with the 1gb stick, I would be willing to bet the 1gb stick is bad. Can you return it and try another stick?

Posted on Mar 15, 2008

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1 Answer

Need to install PC2100 DDR 1GB ram upgrade


Hi,

The PC2100 DDR should be fine on that board. Each slot (which there are 3) will hold 1 gb of ram each. So finding 1GB PC2100 isn't the easiest, you can find 512mb, and put 1 512 in slot 1 and 1 in slot 2, There you'll have your 1GB.

Good Luck,

Don't forget to leave a rating.

Thanks
Mark

Mar 17, 2010 | EliteGroup L4S8A2 Motherboard

2 Answers

I am using this ASUS (asus M2N-MX nvidia mcp61p chipset


According to the manufacturer's web-site:

http://usa.asus.com/product.aspx?P_ID=0pKBwEIE8tqMT4j7


this motherboard has 4 x DIMM sockets,
supporting a maximum of 4 GB
of DDR2 800/667/533/ Non-ECC, Un-buffered Memory

and supports Dual Channel memory architecture.

So, add one 512MB DDR2 533 Mhz RAM into one of the slots,
being sure to leave *ONE* *EMPTY* slot between the two sticks,
in order to enable the high-performance "dual-channel" option.

Try your computer -- it should feel faster.

If you still think that need more RAM, buy two 512MB (or two 1024MB) DDR2 533 Mhz RAM, putting the 2 sticks into the two empty slots.

Dec 26, 2009 | ASUS M2N-MX Motherboard

1 Answer

How do you install 4 sticks of ram? I have 2x 512mb and 2x 1gb. Do I put the pairs in the same color slots?


Yes, there are 4 slots, two colors....put the same ram configuration in the same color. RE: 1 GB sticks go in one color, 512 MB sticks go in the other.

Oct 25, 2009 | ASUS A8N-SLI Deluxe Motherboard

3 Answers

Do I need to buy 2 DDR2 Ram for my ASUS P5VDC-MX Motherboard?


with rams, if the memory it has is higher than that of your cpu, the pc will not boot up or if it is too low compared to your cpu again.

thus, you say it has got two slots right, remove both of the 512's and insert the 1gig only, run your computer, i am sure it will boot up nicely. switch it off. put one 512, if it does not boot then you should know that your ram has an excess of memory that your cpu could not apprehend to.

post a coment if this does not work.

thanks,

wonder

Sep 18, 2009 | ASUS P5VDC-MX Motherboard

3 Answers

I have problem about ram


If the manual says this motherboard support up to 1 GB RAM, you cannot put 2 GB. You can put 2x 512 GB RAM or 1GB RAM
Also try to upgrade your bios, maybe a better bios version supports more than 1 GB RAM.

Aug 24, 2009 | AOpen MX36LE-UN (91.89Q10.101) 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

2 Answers

1gb shows 512mb only


Your mobo is quite old and its chipset can only support a maximum of 512MB PER SIDE (technically called a bank) of a memory module. I would guess that your 1gb memory module has 8 chips that are all located on one side of the module, putting all of the 1 GB on one bank. Thus, only 512MB of your 1 gb RAM is detected and usable by your motherboard (the remaining 32 mb is most likely being used by your onboard video). You'll need to find a double sided 1 gb memory module (usually 8 chips on each side).

Mar 06, 2009 | ASUS P5VDC-MX Motherboard

2 Answers

I tried to install a new motherboard, and it is not working at al


http://support.asus.com/cpusupport/cpusupport.aspx?SLanguage=en-us This is a link to the new board you installed good luck send me more info and I WILL HELP MORE IF I can. Good luck.

Jan 16, 2009 | ASUS P4B266-C (P4B266-C WA) Motherboard

2 Answers

Hello My ASUS K8V-MX Motherboard has only two memory slot


Look into you're manual, go to pages 1-11 & 1-12.
The memory listed here has been tested by Asus to work correctly in the K8V-MX motherboard. In order for you to reach 2GB memory you will need DS memory. Double sided. This means there is 512MG on each side of a single DIMM, hence 2x1x 512MB DIMM equals 1GB. So you will need 4x 512MB to raxhl a total memory of 2GB. Please stay within the recommended memory listed on the Qualified Vendor List (QVL).
Simptronics memory it not on the QVL list. From time to time some memory not one the list may still function. This is not one of those times.

Mike

May 19, 2008 | ASUS K8V-MX Motherboard

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