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9880 Memory Lock-up Solution

post #1 of 3
2/4/06 at 7:36pm
Thread Starter 
If anyone purchased RAM with their Sager 9880 or higher, the RAM will be a high CAS latency. If you have 2 sticks installed for dual-channel that were purchased with the laptop, and you decide to purchase more RAM you might run into a major problem.

I am using Windows XP X64. I had 1 GB of DDR2 PC-4200 (RAM says 4300), this is the RAM that came with the laptop when I purchased it. I recently got 1 more Gig of RAM. It has the same specs as the installed RAM however, it had much better CAS latencies.

I had my stock RAM on the bottom and my new sticks on top. Everything was going fine, at least I thought. Things started locking up, and I got tons of "Blue Screen of Death" error messages. It was constant.

So I removed all the RAM and put the recently purchased RAM with the better CAS latencies on the bottom 2 slots. Then I put the stock on the top 2. Bingo! No more problems. Make sure you put the RAM with the better CAS latencies on the bottom, and the stock sticks on top. Hope this helps anyone if you have this problem.

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post #2 of 3
2/4/06 at 8:53pm
ok, just curious ... why would this make a difference (location of sticks)



Quote:
Originally Posted by Camel Spit
If anyone purchased RAM with their Sager 9880 or higher, the RAM will be a high CAS latency. If you have 2 sticks installed for dual-channel that were purchased with the laptop, and you decide to purchase more RAM you might run into a major problem.

I am using Windows XP X64. I had 1 GB of DDR2 PC-4200 (RAM says 4300), this is the RAM that came with the laptop when I purchased it. I recently got 1 more Gig of RAM. It has the same specs as the installed RAM however, it had much better CAS latencies.

I had my stock RAM on the bottom and my new sticks on top. Everything was going fine, at least I thought. Things started locking up, and I got tons of "Blue Screen of Death" error messages. It was constant.

So I removed all the RAM and put the recently purchased RAM with the better CAS latencies on the bottom 2 slots. Then I put the stock on the top 2. Bingo! No more problems. Make sure you put the RAM with the better CAS latencies on the bottom, and the stock sticks on top. Hope this helps anyone if you have this problem.
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post #3 of 3
2/5/06 at 5:45pm
Thread Starter 

Slower

When you have a pair of sticks that are slower than the other pair with their CAS latency, then it seems like you need the faster pair on the bottom, and the slower pair on top. This is due to the fact that the RAM on the bottom will be used first, then the top pair.
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