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Windows 7: Graphics Card/Onboard Graphics for Media Centre PC

05 Jun 2011   #121
cmd187

Debian Squeeze Stable 64-bit
 
 

Quote   Quote: Originally Posted by Fumz View Post
Quote   Quote: Originally Posted by cmd187 View Post
I'd get a GTX 570 or 580 instead of that 6950, and an 8GB set of Kingston HyperX instead of that Corsair set.
That would be bad advice. Except for model khx1600c9d3p1k2/8g, the Kingston kits use 1.65 volts... which is high for the Sandy Bridge memory controller. Aside from that, the Kingston doesn't run any faster or tighter.
Wrong, the 1333MHz Genesis kit runs at CAS 7.


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05 Jun 2011   #122
Fumz

7 Ultimate x64
 
 

Quote   Quote: Originally Posted by cmd187 View Post
Quote   Quote: Originally Posted by Fumz View Post
Quote   Quote: Originally Posted by cmd187 View Post
I'd get a GTX 570 or 580 instead of that 6950, and an 8GB set of Kingston HyperX instead of that Corsair set.
That would be bad advice. Except for model khx1600c9d3p1k2/8g, the Kingston kits use 1.65 volts... which is high for the Sandy Bridge memory controller. Aside from that, the Kingston doesn't run any faster or tighter.
Wrong, the 1333MHz Genesis kit runs at CAS 7.
Oh boy...

You do understand there's difference between CAS and voltage, right? The sticks you mention are 1.65 volts. Sandy Bridge likes 1.5 volt RAM. I thought I made that clear?

You should also know that for Sandy Bridge it's better to increase memory frequency than to tighten timings. Basically, CAS is the last thing to worry about as it provides the least gains in performance.

DDR3 SDRAM for Sandy Bridge: Choosing the Best Memory for LGA1155 Platform - X-bit labs
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05 Jun 2011   #123
cmd187

Debian Squeeze Stable 64-bit
 
 

Sandy Bridge can run at 1.65v. No problem, yes you can run lower, but that will be fine.
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05 Jun 2011   #124
Fumz

7 Ultimate x64
 
 

Quote   Quote: Originally Posted by cmd187 View Post
Sandy Bridge can run at 1.65v. No problem, yes you can run lower, but that will be fine.
The Sandy Bridge memory standard is 1.5 volts... period. Yes, you can run RAM at 1.65 volts with Sandy Bridge. However, for you to suggest that there's "no problem" is nonsense. The reality is that it's a potential risk... and anyone who actually owns a Sandy Bridge would know that.

Intel has always said to use no more than 5% over the standard, which is ~ 1.6 volts. Anything more is a risk... a risk overclockers take, but a risk nonetheless.

You have no way of knowing how the Sandy Bridge memory controller will react to that much voltage over time... nobody does, they're too new. If you want to take chances with your own hardware, more power to you, but when you give bad/ill-informed advice, you're taking chances with other people's hardware... and so you must be corrected.

Overclockers UK Forums - View Single Post - Sandy Bridge 2500k Just Died
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08 Jun 2011   #125
Sheepdisease

Windows 7
 
 

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08 Jun 2011   #126
Fumz

7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Sheepdisease View Post
Let me keep you updated.

I have ordered:
... bout time old man.
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08 Jun 2011   #127
Sheepdisease

Windows 7
 
 

Yep! Will be building it from Friday onwards.
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08 Jun 2011   #128
biggles1000

Windows 7 Home Premium 64bit
 
 

good luck, hope it goes well
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10 Jun 2011   #129
Sheepdisease

Windows 7
 
 

Hardware arriving today!
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10 Jun 2011   #130
Fumz

7 Ultimate x64
 
 

Then today is indeed a good day. Post pics when you're done. I'm sure everyone who's had a hand in this would like to see the rig.
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 Graphics Card/Onboard Graphics for Media Centre PC




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