I put in two sticks of 1gb pc2-4200 533mhz and the computer started, began to load, then stoppped. i shut the computer off, turned it back on and nothin. i removed the second chip and replaced it with the orignal 512mb chip and it booted fine. why will it not accept the second 1gb chip?

just leave in one of the new 1gb stick of memory
if stable memory was the issue so add the back one at a time each time shut down install turn on test
if still unstable coould be the hard drive

go to foxconn to see if board maxs out at two g .did you check to make sure that the on board was turn off setting in cmos will do that for you.set it for auto. some times ddr3 800 will not go back to the other ram windows xp will only see 3.5 max if you are lucky. your board ddr2 only ok jim

> has 1GB of the RAM stopped working?

Yes, or that 1GB stick of RAM is not "seated" properly into its slot.

Turn the computer off.
Disconnect the AC power cord.
Remove one stick of RAM.
Reconnect the AC power.
Start the computer, and see if reports "zero" RAM or "1GB" of RAM.

Repeat with the other stick of RAM.

> "new hardware detected"

That's a quite-different problem -- changing RAM does _NOT_ cause this message.

If it works fine with one stick of ram. Then it is the ram that is incompatible. You can try different settings but you may end up that the stick isn't compatible. Hope this helps let me know if you have any other questions.
Thank you,
Lee

The new RAM module could be faulty or the second memory slot is faulty.
Try removing the original 1Gb memory module and inserting the new memory module in its place to see if the computer boots up normally. If it doesn't then then new memory module is faulty.

did you try putting 4 1g stick . instead 2 1g and 2 512?

DDR RAM needs to be installed in pairs, as in if you have two 1GB sticks these would, in a four slot board, be inserted in slots 1 and 3 or 2 and 4. The other odd 512MB stick could go in any other slot theoretically speaking. But, you would be better off leaving it out. The SPD chips on the two 1GB sticks should match themselves to time at the slowest common or fastest common denominator.

There is a chance that by having the odd bank population that you said worked for awhile installed as you had, that the MB RAM slots were put under unusual voltage stess. There is a pretty good chance you can remove the 512MB stick, leave the two 1GB sticks in slots 1 and 3 or 2 and 4. But, this is VERY important: consult your board manual or access it online and read what the population requirments are for the slots as in some cases, the two matched sticks go in 1 and 2 or 3 and 4. This little oddity is found from time to time.

Consult your manual or download it and read how the slots need to be populated and stick with the two 1GB sticks.

There are memory testing programs you can find for free at majorgeeks dot com and test your RAM once you have it populated correctly.

In the future, I'd suggest you purchase RAM from Kingston or Corsair directly online as they usually offer a lifetime warranty and this RAM right now for you board is dirt cheap.

Hope this FIXED, as in ANSWERED you question and was more than helpful. Should you feel compelled to rate this solution after reading, either rate it FIXED or not at all. I know its helpful by default, that's what we do here. But only a thorough answer can FIX your situation. You should be fine if you follow my instructions. But, please consult you manual.

Regards,
Worldvet

the above memory stick which will turn on but after between 3 to 10 secs it shows either the shut down screen and turns off or just shuts off any way..
then it will just keep starting and turning off untill i pull the battery out or put the key lock on.
ive rechaged my battery but hasnt improved at all.the only way i can get i to act noamaly though ( at least briefly ) is to conect to computer and delete all music stuf and relaod it. but it works fine for a while but just goes back to square one..

any one able to help ??

Hi,
One or both of your RAMs have developed a fault. Change both RAM. After changing RAM pl format again and than try. Do not insert those faulty RAM again. Get your RAM tested by a software which is available on Microsoft site for free.
Thanks
Bhaskar

hi

is this your motherboard? http://shop.pcmag.com/shop/product_specs/Intel+D915GAG+BLKD915GAGL10+Motherboard/22673983.aspx

if so, it is ok for you to upgrade your memory up to 2gb. btw, just be sure to properly install the rams to the slots.

since youve purchased 2 x 1Gb ddr400 , put on color blue slots.

hope this helps