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DDRII-553 (PC2-4300) mem is ok for DC2 E6600? - Page 2

post #11 of 18
Thread Starter 
It seems that the mobo does support ddr2-533 mem according to the manual, so i guess it's not a problem to run it with this mem, and I still haven't installed yet, and out of time for tonight.

Based on what I've read here so far, while i have the opportunity was planning to ring the guy first in the morning though and tell him I want to swap for the ddr2-800 that was the same price. Difference is this one is TwinMOS ddr2-533 (CL4), the other was A-Data ddr2-800 (CL5). Before I ring in the morning can anyone see any reason why I might not be helping myself to ask for that exchange?
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post #12 of 18
Thread Starter 
I exchanged the DDR2-533 (TwinMOS) for the DDR2-800 (A-Data) today. Looking in 3DMark I notice that the memory is now running at 800Mhz, which is due to the auto settings in the Asus bios, yesterday it was showing 533Mhz, so that's fine. Problem is -

1) After installing the DDR2-800 the machine locked up in the BIOS screen less than a minute after installing.
2) After booting up and running 3DMark05 for first time the machine locked up in the first section of the tests.

I'm feeling it's not stable at all, which is frustrating as the board (Asus P5N32-SLI Premium) is rated as being able to use DDR2-800 (even though it does say "OC" after it I guess..).

I've run a windows memtest that I found on google since and it came up with no errors, and I'm now running Memtest-86 v3.2 and so far it's not come up with any errors - although one problem is that it shows my L2 Cache as "Unknown" when it should be 4MB.

Having said that it's now stuck on "Pass 82%", "Test 15%" and not moving - don't know if this is just a huge delay or it's again crashed?

So...

1) Can anyone suggest any ideas?
2) Should I try and force the memory to run down to 667Mhz to make it more stable and just use tighter timings (although am still complete n00b at doing this).
3) Is there any other test I can run that's better than Memtest-86?

Edit: Memtest-86 has just started spitting a huge long list of errors at me. The test it was on was Test #5: [Block move, 64 moves] at 98% of the test. So it's definitely got a problem, but is it the memory chips or the speed they're running at for the mobo?

Thanks,
Kik
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Core 2 Duo E6600 Asus P5N32-SLI Premium 2 x nVidia 7800GTX (256) 2 x A-Data 1GB DDR2-800 
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SATA 250GB Win XP Pro (32-bit) Maxtor TH2G,w/2xLG+1xEizo MS Wireless 
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My System
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Core 2 Duo E6600 Asus P5N32-SLI Premium 2 x nVidia 7800GTX (256) 2 x A-Data 1GB DDR2-800 
Hard DriveOSMonitorKeyboard
SATA 250GB Win XP Pro (32-bit) Maxtor TH2G,w/2xLG+1xEizo MS Wireless 
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post #13 of 18
Quote:
Originally Posted by Kikmaidog View Post
I exchanged the DDR2-533 (TwinMOS) for the DDR2-800 (A-Data) today. Looking in 3DMark I notice that the memory is now running at 800Mhz, which is due to the auto settings in the Asus bios, yesterday it was showing 533Mhz, so that's fine. Problem is -

1) After installing the DDR2-800 the machine locked up in the BIOS screen less than a minute after installing.
2) After booting up and running 3DMark05 for first time the machine locked up in the first section of the tests.

I'm feeling it's not stable at all, which is frustrating as the board (Asus P5N32-SLI Premium) is rated as being able to use DDR2-800 (even though it does say "OC" after it I guess..).

I've run a windows memtest that I found on google since and it came up with no errors, and I'm now running Memtest-86 v3.2 and so far it's not come up with any errors - although one problem is that it shows my L2 Cache as "Unknown" when it should be 4MB.

Having said that it's now stuck on "Pass 82%", "Test 15%" and not moving - don't know if this is just a huge delay or it's again crashed?

So...

1) Can anyone suggest any ideas?
2) Should I try and force the memory to run down to 667Mhz to make it more stable and just use tighter timings (although am still complete n00b at doing this).
3) Is there any other test I can run that's better than Memtest-86?

Edit: Memtest-86 has just started spitting a huge long list of errors at me. The test it was on was Test #5: [Block move, 64 moves] at 98% of the test. So it's definitely got a problem, but is it the memory chips or the speed they're running at for the mobo?

Thanks,
Kik
lots of memtest errors... well thats usually a sign that the ram is pretty messed up

you could go back to the shop and tell them it errors alot on memtest and makes the pc crash, and see if you can get it replaced with a new set. also you could try running just one stick of ram and see how many errors you get, then put the other stick in on its own to see which stick is the worst. also try running the memory slower then running memtest, but if the memory is faulty it will still give alot of errors
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post #14 of 18
If you don't OC, assuming timings are the same, DDR-533 will give the same performance as DDR2-800. At 266 x 9 DDR-533 will be running 1:1.

If your OCing, definatly go for the DDR2-800.
2 OP pls nerf
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post #15 of 18
Try finding a option in the BIOS, naming "USB Legacy Support"

It is known to give awfully many problems on mem-test.
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post #16 of 18
I would personally go for the 800Mhz RAM, as you can probably run it at 533Mhz at the same timings as the 533Mhz RAM meaning you can then set it at 800Mhz at the looser timings and compare what performance is better!!

And also you can overclock with 800Mhz RAM better cos if you set your FSB to RAM ration at 1:1, you can just up the fsb more to over clock the CPU, and get to higher clock speeds without being limited by the RAM, as long as you 800Mhz RAM is set with loose timings to begin with. But 533Mhz RAM is unlikely to get much faster than its stated speed.

Obviously that all depends the RAM makes on you setting the voltages right too, (which i had a little problem with), but 2.0,2.1 or 2.2v is fine to run DDR2 memory at.

Hoep this helps!!
post #17 of 18
Quote:
I exchanged the DDR2-533 (TwinMOS) for the DDR2-800 (A-Data) today. Looking in 3DMark I notice that the memory is now running at 800Mhz, which is due to the auto settings in the Asus bios, yesterday it was showing 533Mhz, so that's fine. Problem is -

1) After installing the DDR2-800 the machine locked up in the BIOS screen less than a minute after installing.
2) After booting up and running 3DMark05 for first time the machine locked up in the first section of the tests.

I'm feeling it's not stable at all, which is frustrating as the board (Asus P5N32-SLI Premium) is rated as being able to use DDR2-800 (even though it does say "OC" after it I guess..).

I've run a windows memtest that I found on google since and it came up with no errors, and I'm now running Memtest-86 v3.2 and so far it's not come up with any errors - although one problem is that it shows my L2 Cache as "Unknown" when it should be 4MB.

Having said that it's now stuck on "Pass 82%", "Test 15%" and not moving - don't know if this is just a huge delay or it's again crashed?

So...

1) Can anyone suggest any ideas?
2) Should I try and force the memory to run down to 667Mhz to make it more stable and just use tighter timings (although am still complete n00b at doing this).
3) Is there any other test I can run that's better than Memtest-86?

Edit: Memtest-86 has just started spitting a huge long list of errors at me. The test it was on was Test #5: [Block move, 64 moves] at 98% of the test. So it's definitely got a problem, but is it the memory chips or the speed they're running at for the mobo?
did you make sure that you changed your vdimm in bios since it probably startd out at 1.8v, chang ethat to what ever is recommended by the ram or i would say jsut 2.2 but anyways that may be causing some instability
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post #18 of 18
Thread Starter 
Thanks for the replies all. I tried setting my mobo to let me change frequencies manually, and tried putting the memory frequency to 667Mhz instead of 800. Ran memtest with this setting for about 6 full passes with no errors, so it seems stable at that Mhz. I'm still curious why the asus mobo guide says '800(OC)' I'm assuming it means you won't use 800Mhz unless you're OC'ing.

That new setting lets me leave the CPU still at the same default speed, and FSB speed (haven't tried OC'ing yet, just wanted to get stable first). Using 3DMark05 I found this increased Mhz on the memory helped my CPU score, roughly I got these scores for the CPU -

Mem Freq 533 = ~7600 (this was with the ddr2-533 ram)
Mem Freq 667 = ~7950 (this was with the ddr2-800 ram and was stable)
Mem Freq 800 = ~8200 (with ddr2-800, but crashes are regular)

I'm going to try some of the suggestions from the last set of replies, esp. voltage changes tomorrow when I get some time. Thanks again for help so far
My System
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CPUMotherboardGraphicsRAM
Core 2 Duo E6600 Asus P5N32-SLI Premium 2 x nVidia 7800GTX (256) 2 x A-Data 1GB DDR2-800 
Hard DriveOSMonitorKeyboard
SATA 250GB Win XP Pro (32-bit) Maxtor TH2G,w/2xLG+1xEizo MS Wireless 
PowerCaseMouse
600W CoolerMaster MS Wireless 
  hide details  
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core 2 Duo E6600 Asus P5N32-SLI Premium 2 x nVidia 7800GTX (256) 2 x A-Data 1GB DDR2-800 
Hard DriveOSMonitorKeyboard
SATA 250GB Win XP Pro (32-bit) Maxtor TH2G,w/2xLG+1xEizo MS Wireless 
PowerCaseMouse
600W CoolerMaster MS Wireless 
  hide details  
Reply
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