Ramdingy

I have a PCV-RS720 Sony Desktop that I am having issues with. I just tried to install two 1GB stick and my computer starts up, goes to the windows startup screen and restarts. Since it has 4 slots I double checked that it can use two 1GB sticks and it can. The ram is the proper PC3200 DDR. Any help is greatly appreciated. Thanks!

PC eye

The problem there is a quick answer to provide. The maximum amount of memory you can install is 2gb using four 512s of DDR400 PC3200 memory. The system is still trying to load while the 1gb dimms are not supported by the board there. The specifications can be seen at http://www.sonystyle.ca/commerce/ser...ductId=1000375

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Ramdingy

What spec details the fact that only 4 512's will work?

PC eye

The Vaio model originally shipped with a pair of 256mb dimms totally 512. The details seen there show: 512MB PC-3200 400MHz DDR (256MB x 2) (Expandable to 2.0GB)

The expandable to 2gb applies to seeing all dimm slots populated with the largest dimm you can use being four 512s to reach the total 2gb total. The board doesn't support 1gb dimms as typically seen with many older systems and on boards for custom builds as well.

Many saw 3gb as the max once boards came out supporting 1gb dimms were 3 could be used for the max. If you look at the latest boards now seen you now see 8gb and 16gb max capacities since the introuction of 2gb dimms. What happened there for you however is you simply went with dimms too large for use on the older model.

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http://abcnews.go.com/Technology/Sma...ory?id=5647175

Is EBay going out of the Auction Business?
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Ramdingy

The odd thing is that all of the sites (including Crucial) list the two 1GB ram chips as compatible with this model. I was able to enter into windows via safe mode and it recognizes the proper amount of ram, but I cannot get into windows via a normal startup.

StrangleHold

On the Sony site it does say, 512mbs of DDR 400, that would kinda make you believe 4- 512mbs to get to its 2gb max.. If you have 4 slots try putting 1gb. in one channel and 1gb in the other. Instead of side by side.

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NZXT Apollo
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Gigabyte GA MA770 DS3
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Ramdingy

I have tried all variations, the original 256 work in any slots, the new ram is recognized by windows in safe mode but it still restarts when trying to enter windows on a normal startup.

StrangleHold

Have you tried with just one 1gb stick to see if windows will boot in normal mode. Is this XP?

__________________
NZXT Apollo
Athlon 64 X2 5600 3.3ghz.
Gigabyte GA MA770 DS3
G Skill DDR2 1066 944mhz. 4gb.
PNY 8800GT/VD964
W/D RE2 Sata 3.0 500gb.

There's a great power in words, if you don't hitch too many of them together.

Ramdingy

Same problem with the 1 stick, and it is XP. All updates from windows and Sony have been installed. (just in case it was a hardware issue)

PC eye

The information seen at 3rd party memory upgrade sites is often too general rather then specific when upgrading any particular model out of a line. The reason safe mode is loading is that is a diagnostic mode there seeing only the basic shell loaded along with only a minimum number of processes. The board itself for that model is apparently limited to the 512mb size for normal use.

__________________
Turning the Tongue into a Device Controller
http://abcnews.go.com/Technology/Sma...ory?id=5647175

Is EBay going out of the Auction Business?
http://abcnews.go.com/Business/story?id=5626840&page=1