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Old 12-03-2004, 10:30 AM   #1
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Unhappy Memtest results question & issue

Hi, I have built a new machine and am having issues with running RAM in dual-channel mode. I run Memtest and the sticks have no errors when I test & run them individually, but when I test them in the dual channel config I get anywhere from 40000 errors to over a million during the default tests run. Nothing is overclocked.

Here are my specs (all new parts):
Windows XP Pro
Abit AI7 mobo
P4 3.2ghz 800FSB Northwood w/hyperthreading on
1024 MB (2x512MB) Geil Value Series DDR400
1-80GB & 1-120GB Maxtor Ultra IDE HD
PNY GeForce 128MB 5200 Ultra video card

I initially had a P4 2.4 533FSB no-hyper in it while I was waiting for the 3.2 and it worked perfectly. As soon as I put the 3.2 in I would get blue screens at random times during bootup, safe mode, etc., never getting to the desktop. I then put in some older DDR333 dual channel sticks in and it worked fine. Put the DDR400 back at 800FSB and no go. Dropped the RAM speed down to 533FSB and it worked.

Now I put the GEIL DDR400 into a different box (still dual channel) with the older 2.4 processor @533FSB & worked fine. Ran Memtest on that machine, no errors.

It seems to be an issue with te 800FSB? Could the problem be with a) the processor b) the mobo c) the RAM d) any/all the above? Thanks for any help.
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Old 12-03-2004, 10:55 AM   #2
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Try upping the voltage, 2.65 or 2.7v or higher if that Abit will let ya. Geil likes higher voltage, I imagine it's set at 2.5~2.6 right now. It can easily handle 2.85~3.2V without any problems. Just keep upping it in increments and see if that helps it.
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Old 12-08-2004, 03:11 PM   #3
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Thanks, I tried upping the voltage to no avail. I was finally able to get it stable with zero Memtest errors by dropping the FSB speed down to 195mhz. It seems to work fine. As soon as I pump it up to it's default 200mhz I get Memtest errors and random blue screens. Guess I'll have to live with it. 5mhz loss isn't too bad.
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Old 12-08-2004, 05:58 PM   #4
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What are you running in dual channel? the PNY? as i've seen that stuff regularly give errors in memtest when used in dual-channel.
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Old 12-09-2004, 10:34 AM   #5
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The only PNY I see is the video card. It's Geil ram.
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Old 12-09-2004, 11:14 AM   #6
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Oops, my mistake, i'm starting to get a habit of misreading things (maybe I need glasses). Appologies...
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