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post #11 of 23
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post #12 of 23
To get your BIOS to get you up the vcore(cpu voltage) its either a key combination or more likely you may need to up date the BIOS, or it might just not be able to go/handle anything higher.
EDIT:
your vcore can only go up to 1.450v sorry
Heres link
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post #13 of 23
Thread Starter 
I think I'm going to hold off pushing it any further until my Big Typhoon arrives. As it is I'm pushing 52c at max sustained.

I just picked up this A8R32 motherboard and now I'm having second thoughts. I mostly purchased it for future proofing; at least enough to handle the FX60 and Crossfire at full dual 16x. If there is another board out there that will do the same and better at overclocking I would certainly take this one in for an exchange while I'm still within my 30 days.

I hear there's a DFI model that comes highly recommended for the task.

* EDIT * I just updated my system specs in my profile here.
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post #14 of 23
Quote:
Originally Posted by Sgaileach1

I hear there's a DFI model that comes highly recommended for the task.
Yes, DFI's LP nf4 boarda are good for overclocking. The Ultra-D is probably the most popular because its the cheapest. They have a ton of options(expecially for the memory timmings), so they can be a bit confussing to someone that is new to DFI, but theres lots of people here that will help you along the way.
If you want a good crossfire board, DFI has a nice one too.
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post #15 of 23
Thread Starter 
Thanks. I also had a question about the Big Typhoon heatsink by Thermaltake mentioned earlier. I read somewhere that it requires a specific footprint on the board in order to install, something about four holes. I'm just wondering if it works on the A8R32-MVP Crossfire boards as well as on the DFI Crossfire board?
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post #16 of 23
Quote:
Originally Posted by Sgaileach1
Thanks. I also had a question about the Big Typhoon heatsink by Thermaltake mentioned earlier. I read somewhere that it requires a specific footprint on the board in order to install, something about four holes. I'm just wondering if it works on the A8R32-MVP Crossfire boards as well as on the DFI Crossfire board?
Yes it should fit on them both. its made to fit quite a few different socket types.
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post #17 of 23
Thread Starter 
I have actually decided to give up on the ASUS A8R32-MVP Deluxe in exchange for the new DFI LANParty UT CFX3200-DR. On closer investigation it appears to be a far better solution for overclocking.

The primary reason I say this is that ASUS has apparently decided to remove (or simply not include) support for increased voltage to the CPU! I couldn't believe it, and their advertizing is highly misleading.

"Core Voltage: Adjustable CPU voltage at 0.025 V increment"

This comes right off their website and also the latest version of the user manual, which came out almost a full month AFTER their latest BIOS release.

http://www.asus.com/products4.aspx?m...3&l2=15&l3=268

"vCore - Find out "exactly" how much power your CPU needs. Fine-tune it with 0.025 volts at a time!"

Er, unless I'm missing something its going to be rather trying to find out exactly how much power my CPU needs by taking power away from it incrementally, be it "inch by inch" or by the metric system!

What blew my mind is that its true, the board does support incremental voltage adjustment, however what they fail to tell the consumer is that it only supports clocking DOWN! For what conceivable purpose would an enthusiast desire to underclock their CPU on an advertised as overclocking motherboard?

Needless to say, this is seriously limiting my achievable stability at higher frequencies, and many reviews I’ve read including a good one from Tom’s Hardware seem to come to the same conclusion.

http://www.tomshardware.com/2005/12/...ire_treatment/

The DFI model benchmarked in that review was the UT RDX200. The CFX3200-DR appears to be a superior product, with “true†16x PCIE and some gimmicky network thing called “teaming.†(Sounds a bit suspicious, but oh well I guess.)

So, my question I suppose at this point is would this be my best option for high speed Crossfire and stable overclocking on an AMD 939 platform?

Also, is there perhaps a link or information anyone has showing the Big Typhoon to indeed be the best air cooling solution?

I also had another basic question. When overclocking is it best to shoot for a higher FSB value or a lower memory divider?

For example, which would be best?

255 x11 @ 166 = 2.8ghz @ 200.4mhz DDR
270 x10.5 @ 150 = 2.84ghz @ 202.5mhz DDR
280 x10 @ 143 = 2.8ghz @ 200mhz DDR

Also, what other things should I be concerned about? Are there any memory dividers to stay away from in terms of stability? (125, 143, 150, and 183 seem to be considered “non-standard†in some circles.)
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post #18 of 23
Quote:
Originally Posted by Sgaileach1
So, my question I suppose at this point is would this be my best option for high speed Crossfire and stable overclocking on an AMD 939 platform?
Yes, I think you'd be pretty happy with that board.


Quote:
Originally Posted by Sgaileach1
Also, is there perhaps a link or information anyone has showing the Big Typhoon to indeed be the best air cooling solution?
Just look at peoples sigs. You'll notice that most of the people that use air use the Big Typhoon

Quote:
Originally Posted by Sgaileach1
I also had another basic question. When overclocking is it best to shoot for a higher FSB value or a lower memory divider?

For example, which would be best?

255 x11 @ 166 = 2.8ghz @ 200.4mhz DDR
270 x10.5 @ 150 = 2.84ghz @ 202.5mhz DDR
280 x10 @ 143 = 2.8ghz @ 200mhz DDR

Also, what other things should I be concerned about? Are there any memory dividers to stay away from in terms of stability? (125, 143, 150, and 183 seem to be considered “non-standard” in some circles.)
You want the cpu to be as fast as posssible. than work on the memory. try for a high frecquency if you can, else slow it down a bit with a divider and try and tighten the timmings.
EXAPMLE of mine right now:
cpu:2.827ghz 11x257
memory:no divider (1:1 ratio) 257mhz @ 2-2-2-0
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post #19 of 23
Thread Starter 
Hmmm... Well, it looks like the memory I have is actually relatively lousy... Corsair TWINX1024-3200PT 1gig kit, 3-3-3-8 latency tested at 200mhz.

I wonder how well that particular batch can be "tightened?"

Only one way to find out I suppose. Would Memtest86 on a boot disk be the best way to test for stability on that? Where would be the best place to find out about overclock potentials on a particular brand of memory (these Corsairs) and how can I be certain I'm not getting too hot?

I imagine there's probably all sorts of aftermarket solutions, however at the moment I'm relatively short on cash. They do have a decent heatsink though its nothing remarkably special.
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post #20 of 23
Memtest86 is a good way to see if memory if error free. I'd also run prime95 the blend stress test. To find the best timings, all you can really do is try to get them the best you can. if there at 200mhz then try 3-3-2-8 then maybe try 3-3-2-7 then 2.5-3-2-7 and so on.
Do you have a link to your memory?
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