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3800+ @ 2.8Ghz? - Page 2

post #11 of 16
Thread Starter 
Just been reading that Gogars AMD64 chart and i have achieved the following:

Was using 10 x 280 (HT x 3) = 2.8Ghz Using 266 Divider, Memory @ 187Mhz

Now using 11.5 x 246 (HT x 4) = 2.83Ghz Using 333 Divider, Memory @ 202Mhz

My only issue i have is my HT is set on x4 in the Bios but Nvidia Monitor and CPU-Z show it as if it was set on x3? No matter how many times i re-run them
 
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post #12 of 16
Quote:
Originally Posted by Mhill2029 View Post
Just been reading that Gogars AMD64 chart and i have achieved the following:

Was using 10 x 280 (HT x 3) = 2.8Ghz Using 266 Divider, Memory @ 187Mhz

Now using 11.5 x 246 (HT x 4) = 2.83Ghz Using 333 Divider, Memory @ 202Mhz

My only issue i have is my HT is set on x4 in the Bios but Nvidia Monitor and CPU-Z show it as if it was set on x3? No matter how many times i re-run them

Sometimes software will report the wrong values. Run some benchmarks and see which setup gives you the highest score.
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post #13 of 16
Thread Starter 
I think i'll forget it, 2.7ghz seems fast enough, plus imo the performance gained from 2.7 to 2.8 is virtually nil.

Everything was working with 10 x 280 (HTx3), although spybot found instability when i ran it to search for spyware/adware and tried to connect to MSN Messenger at the same time. And puff, the screen froze and had display annomolies, i did this 3 times, same thing happened.
 
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post #14 of 16
What are your voltages and temperatures? Maybe you can push that CPU a bit more? Your RAM is definately the limiting factor here, so the only way to go would be using big dividers.
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post #15 of 16
Thread Starter 
I know my ram is a limiting factor, but i'm not trying to achieve 3Ghz or anything so my ram doesn't matter at these freq really. Tried 2.82Ghz with an 11.5 Multi 246FSB with a 333Mhz divider ( memory @ 202Mhz) and my DDR @ 2.75v (which i think is stock for my ram) and it passes the Super PI 1M test, but it seems i have to put my Vcore @ 1.55v for it to be stable, should my voltage be that high for that freq?

Anything above 2.82Ghz seems to casue Super PI errors, or the system reboots itself suddenly when the Super PI test gets going. The other issue i have is that over 2.82Ghz my HT seems to **** up. It's fine at x4 as it's still below 1000, but like i said CPU-Z and Nvidia Monitor report it at a lower freq as if it's set to x3. I'm thinking my HT is the cause, and raising the HT voltage to 1.25v made no difference.
 
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Corsair H105 (Push/Pull) Windows 10 Pro x64 2x 27" Asus PG278Q ROG Swift 144hz  Corsair AX1500i Digital ATX 80 Plus Titanium 
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Lian Li PC-O8WX ATX Cube Case Logitech Z906 5.1 Surround 
CPUMotherboardGraphicsRAM
i7-3930K (C2) @ (4.6Ghz) Asus Rampage IV Extreme X79 (Bios 3204) 3x EVGA GTX780Ti's SC Editions 32GB (4x8GB) G-Skill TridentX 2400Mhz 
Hard DriveHard DriveOptical DriveCooling
2x 256GB OCZ Vertex 4's (RAID-0) 2x 2TB Seagate Barracuda 7200.14 64MB Cache Pioneer BDR-207DBK Blu-ray Writer Corsair H105 (Push/Pull) 
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post #16 of 16
Changing the HT voltage does very little (it may even do nothing at all). The values that you set on the BIOS are always the correct ones, regardless of what software may say. Also, set the voltages yourself and don't use any "Auto" values, since the BIOS usually overvolts more than necessary to achieve stability (sometimes it undervolts).
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