Is my new ram deffective?

Maniacal

the green Napoleon
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I purchased two new sticks of DDR2 RAM that are identical (except a different version apparently) to the two sticks I currently have in my rig. The only difference is my old sticks are version 2.something and the new ones are ver6.3

Anyways, so I tried putting the two new sticks in with the old two, on the BIOS boot screen it got to the CPU then froze. I tried again with just the old ones, it worked, tried putting the warmer of the two new ones in and it worked although I didn't test any games.

Then I tried putting the 4th one back in and the system got to windows then restarted, then restarted during the BIOS boot again with a strange graphical mixture of colours I can't describe. It kept restarting so i shut it down and took the ram out and tried the 4th stick without the 3rd one, it worked until i tried to play games. mass Effect did not reach the main menu more than once out of 8 tries before getting one of two or three errors (I don't know what they meant). Tried playing Left 4 Dead, almost got through the 1st level then it crashed. I have since removed the new sticks.

Is one of my new sticks deffective? Or am i doing it wrong?

I have an ASUS P5N32-E SLI mobo, which has 4 slots and can hold up to 8 gigs of RAM.
Windows XP
The RAM I have;
Corsair XMS2 TWIN2X2048-6400C4 2GB 2X1GB PC2-6400 DDR2-800 CL 4-4-4-12 240PIN Dual Channel Memory
http://www.ncix.com/products/?sku=18580&vpn=TWIN2X2048-6400C4&manufacture=Corsair
 
Try booting with each of the new sticks individually and see what happens. If you can't boot with just the one, it's probably bad.

Not unheard of, but unusual.
 
Try memtest86+
 
why on Earth are you using 8 gigs RAM with XP???
 
I have an ASUS P5N32-E SLI mobo, which has 4 slots and can hold up to 8 gigs of RAM.
Windows XP
The RAM I have;
Corsair XMS2 TWIN2X2048-6400C4 2GB 2X1GB PC2-6400 DDR2-800 CL 4-4-4-12 240PIN Dual Channel Memory
http://www.ncix.com/products/?sku=18580&vpn=TWIN2X2048-6400C4&manufacture=Corsair

"It features 1333/1066/800/533MHz FSB, dual-channel un-buffered DDR2 800/667/533 x 4DIMMs with a maximum of 8GB. "


"Corsair XMS2 TWIN2X2048-6400C4 2GB 2X1GB PC2-6400 DDR2-800 CL 4-4-4-12 240PIN Dual Channel Memory"

So the new sticks have the exact same settings, even "CL 4-4-4-12" ? I'm thinking that maybe the timing settings might be different. Also all 4 ram sticks are DDR2-800?

I'd do what Turner said, that's the easiest. Try booting with only one stick, trying every stick.

Also ask in Corsair's forum, because there might be a very subtle technical reason involving the ram's manufacturing.
 
Just because your mobo can handle 8 gigs doesn't mean that the OS can. XP has a hard limit of 4gb of ram addressable. Anything over it is a waste. That's a limitation of the 32-bit OS.

Now, if you're still on 32bit XP (which you haven't explicitly stated yet), 8gb is simply going to be wasted. If you're on 64bit XP, then you should be fine.

However, since the computer appears to be failiing before the OS load, this shouldn't be an issue. Also, I've never tried to boot more than 4gb of RAM into a 32bit OS, so I don't know where exactly it would fail.
 
I am only trying to put 4 gigs in, and I assumed 32bit XP did not need saying, considering 64bitXP is unstable and unsupported.

Was the problem solved?
 
Anyways, so I tried putting the two new sticks in with the old two, on the BIOS boot screen it got to the CPU then froze. I tried again with just the old ones, it worked, tried putting the warmer of the two new ones in and it worked although I didn't test any games.
This implied that you were trying to use all of the sticks at the same time.

Then I tried putting the 4th one back in and the system got to windows then restarted, then restarted during the BIOS boot again with a strange graphical mixture of colours I can't describe. It kept restarting so i shut it down and took the ram out and tried the 4th stick without the 3rd one, it worked until i tried to play games.
This doesn't really say otherwise, but also suggests that the two original ones were seated while you were testing the two new ones. So it looks to us like you're trying to use more than 4gb in an XP rig.

Again, I've never tried to boot a machine that has more memory than the OS can handle, so I don't know how that will work.
 
It may be impossible to run all 4 sticks together on your motherboard. With nVidia's chipsets, its actually extremely unlikely that you can keep the system stable with 4 sticks of memory. My own motherboard (a 780i chipset which is just a small update of the 680i) wouldnt work with 4 sticks on the first two boards I had. 3rd and current one is stable, but there's always that specter of failure. Try both of the new sticks and one of the old ones. Then try all combinations of new and old. I have a hunch that it will be stable as long as its only 3 sticks.
 
This implied that you were trying to use all of the sticks at the same time.


This doesn't really say otherwise, but also suggests that the two original ones were seated while you were testing the two new ones. So it looks to us like you're trying to use more than 4gb in an XP rig.

Again, I've never tried to boot a machine that has more memory than the OS can handle, so I don't know how that will work.
People didn't read it right in assuming he was talking about already having 2 2GB sticks and adding 2 2GB sticks.



The RAM I have;
Corsair XMS2 TWIN2X2048-6400C4 2GB 2X1GB PC2-6400 DDR2-800 CL 4-4-4-12 240PIN Dual Channel Memory

That implies that the 2GB comes in 2 1GB sticks. Like how this add says that 4GB comes in 2 2GB sticks.
People were reading it wrong to think he had 2 2GB sticks and was adding 2 2GB sticks.
 
I run 4 2GB sticks on an nVidia 750 SLI mobo running 64-bit Vista with no problems whatsoever.

Agreed.

I have 4x 2GB sticks on my 780i SLI, but like I said, it took 3 tries to get that to work ( more specifically, 2 changes of the motherboard)
 
It sounded like he was talking about 1GB sticks. In fact, the TWIN2X-6400C4 2X1GB should have given it away. You people just need to read closer.
 
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