DDR2-667 Vs DDR2-800

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Original Message

Name: app1es
Date: August 14, 2006 at 11:45:40 Pacific
Subject: DDR2-667 Vs DDR2-800
OS: XP
CPU/Ram: 4600+X2

Comment:

Can anyone tell me if there is a big difference in speed in the 2 frequencies. My motherboard says that it accepts DDR2-800 but when i put it in it doesn't work. When i change the frequency to DDR2-667 it works perfectly. All over the mobo box says that it takes DDR2-800 but mobos that can run DDR2-800 have to use 2.0v+ to use it and the asus m2n-e only goes up to 1.95v

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Response Number 1

Name: Sabertooth
Date: August 14, 2006 at 11:54:06 Pacific
Subject: DDR2-667 Vs DDR2-800

Reply: (edit)

It would be nice to know what motherboard we are dealing with here.
The internet is a series of tubes!

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Response Number 2

Name: jam
Date: August 14, 2006 at 12:00:03 Pacific
Subject: DDR2-667 Vs DDR2-800

Reply: (edit)

Go to the following site, left column, click on "QVL Download"
http://www.asus.com/products4.aspx?l1=3&l2=101&l3=0&model=1181&modelmenu=1
"All over the mobo box says that it takes DDR2-800 but mobos that can run DDR2-800 have to use 2.0v+"
RAM voltage requirements vary depending on the RAM. Some runs at 1.90v, some at 2.0v, some at 2.1v, & others have a range that it can be run at. Look at your RAM specs.

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Response Number 3

Name: jam
Date: August 14, 2006 at 12:00:57 Pacific
Subject: DDR2-667 Vs DDR2-800

Reply: (edit)

Actually, it would be nice to know what RAM we're dealing with ;)

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Response Number 4

Name: app1es
Date: August 14, 2006 at 12:18:06 Pacific
Subject: DDR2-667 Vs DDR2-800

Reply: (edit)

We are dealing with the Asus M2N-E nForce 570 Ultra
http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=247081
and
2GB Kit DDR2-800 PC2-6400 Gold Gamer eXtreme XTC Edition Dual Channel Memory
http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=85236
The ram requires 2.0v to run DDR2-800 and the motherboard, when in the BIOS menu, only allows me to select 1.95v at the highest setting.
I keep calling ASUS and they tell me to call OCZ and I call OCZ and they tell me to call ASUS =/
When talking to ASUS I asked the man if there was a BIOS update that allowed my motherboard to run 2.0v or greater and he said yes, but its quite possible he didn't know what he was talking about. I've been to the ASUS website to checkout their BIOS updates and I don't see my motherboard model listed anywhere.
What do you guys recommend I do?
Just run it at 667mhz or BIOS update. If there isn't much a speed difference between 667 and 800 I won't run the risk with a BIOS update. But I did pay for 800mhz...

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Response Number 5

Name: jam
Date: August 14, 2006 at 12:32:34 Pacific
Subject: DDR2-667 Vs DDR2-800

Reply: (edit)

I already gave you the link to your motherboard. The only BIOS version available is BIOS 0203 & all it lists is added CPU support.
If you did what I suggested in response # 2 you'd have found that OCZ RAM isn't on the Qualified Vendors List.

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DDR2 667 vs DDR2 800 DDR2 800 / DDR 667 compatability ddr2 533 will work? DDR2 6400 running at only 400Mhz! DDR2 Question	Dual channel? DDR2 for GA-P35-DS3L ? 1066 FSB with 800 MHz CPU ddr2 800mghz ram freq read as 667mz Do 2Gb DDR2 single modules exist?

Response Number 6

Name: app1es
Date: August 14, 2006 at 12:39:09 Pacific
Subject: DDR2-667 Vs DDR2-800

Reply: (edit)

Yeah I saw that Jam, thanks.
But the problem is I already bought this RAM. This is my first build so it is a good lesson for the future.
The RAM does work on DDr2-667 but like i said thats not what I paid for. You think I should return the OCZ and get the Corsair that is compatible? Or is there little difference between the 667mhz and the 800mhz for me to not even bother paying a 15% restocking fee and compatible memory?

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Response Number 7

Name: Sabertooth
Date: August 14, 2006 at 13:42:27 Pacific
Subject: DDR2-667 Vs DDR2-800

Reply: (edit)

If I was you & considering it was my mistake, I wouldn't bother - not with a restocking fee.

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Response Number 8

Name: Cobra_R
Date: August 14, 2006 at 16:01:19 Pacific
Subject: DDR2-667 Vs DDR2-800

Reply: (edit)

there isn't a diff to where you will notice it.
AMD Athlon 64 X2 4600+ OC 2.7ghz
2GB Dual Channel DDR 3200
Nvidia 7900GT
SATA II 2x 200gig 7200rpm 16mb cache RAID-0
Gigabyte Nforce 4 SLI

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Response Number 9

Name: app1es
Date: August 14, 2006 at 17:21:42 Pacific
Subject: DDR2-667 Vs DDR2-800

Reply: (edit)

Ok thanks for the help guys!

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