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post #6321 of 9641
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Quote:
Originally Posted by Regamaster View Post
I can reach 3.9GHz stable at 1.48v with BIOS 1.9 but I don't like to run it 24/7 because my rooms ambient temps are rediculous. I'm curious though, what are the benefits/reasons to overclock the NB passed 2000MHz? I just keep mine at stock.
Bandwidth. Mostly memory.
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post #6322 of 9641
Quote:
Originally Posted by ToxicAdam View Post
1.A adds Phenom x6 support. If you're not getting it, No.
Quote:
Originally Posted by moorhen2 View Post
Unless you are planing to get a Thuban cpu,then no,theres no need to flash to 1.10/1.A,if your stable on 1.9,no need to bother.
Thanks guys. I'm planning on getting a Thuban but I'll hold off upgrading the Bios till then.

Cheers
post #6323 of 9641
1.A upgrades the raid bios and cuts down the array detection times.

If you are using raid on the ATI SB, upgrade it.
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post #6324 of 9641
I'm running 4x2 GB set the manual settings, relaxing the time and I can not get 1600 mhz, once wimdows going to start crashing. I have the latest update 1.A. val is freely again that the reports are incopatibles, someone is running 8 gb at 1600 stable? as it does?
Edited by mr.malace - 4/25/10 at 8:15am
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post #6325 of 9641
Quote:
Originally Posted by moorhen2 View Post
Also dissable bank interleaving.
What does turning off bank interleaving accomplishes? Is it for a more stable overclock or better performance?
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post #6326 of 9641
Quote:
Originally Posted by mr.malace View Post
hey guys need help to run 8 GB memory 1600. a1333 only run, I tried to adjust from bios but impocible, please someone help me, these like crazy with these memories
Malace, AMD CPUs' officially only support 1333MHz speeds. ANYTHING over that is considered an overclock.

If you could post a CPUz validation, that'll help us in giving you advice on how and what to set to get it to run at higher speeds.

However, there's a tradeoff usually. In order to run higher memory speeds (frequency) you need to loosen the timings. If the timings are too loose, even though you might have a higher speed i.e. 1600 at CAS 9, it would actually be slower than having your memory at 1333 CAS 7.
Quote:
Originally Posted by Regamaster View Post
I can reach 3.9GHz stable at 1.48v with BIOS 1.9 but I don't like to run it 24/7 because my rooms ambient temps are rediculous. I'm curious though, what are the benefits/reasons to overclock the NB passed 2000MHz? I just keep mine at stock.
Memory bandwidth mainly. The higher the CPU-NB frequency, the more information can travel across it and effectively increase your rigs overall performance.
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post #6327 of 9641
Quote:
Originally Posted by ToxicAdam View Post
What does turning off bank interleaving accomplishes? Is it for a more stable overclock or better performance?
Yes,better stability and performance.
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post #6328 of 9641
blackomega this is my cpu-z validation http://valid.canardpc.com/show_oc.php?id=1150245 here I send a igagen of my pc. thank you very much
Edited by mr.malace - 4/25/10 at 11:47am
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post #6329 of 9641
Quote:
Originally Posted by mr.malace View Post
blackomega this is my cpu-z validation http://valid.canardpc.com/show_oc.php?id=1150245 here I send a igagen of my pc. thank you very much
Ok make sure your RAM voltage is set appropriately (1.65v)

Looking at your CPUz validation your RAM is actually at 1466MHz not 1333MHz. Also, since you raised your reference clock (FSB) to 220, this also raised your CPU-NB frequency to 2400MHz. The (CPU-)NB frequency also plays a big role in trying to get your memory to run at certain speeds.
The higher the CPU-NB frequency is, the more difficult it is to achieve higher RAM frequency (speed) because the CPU-NB is the lane that connects the CPU to the memory. By increasing the NB frequency it makes the CPUs' integrated memory controller work harder.

At any rate, for testing purposes we'll want to take the NB out of the equation. So in the BIOS find the "CPU-NB" frequency multiplier and change it to 9. That'll put you 20MHz below 2000MHz --which is stock.
Then set your your RAM divider to 1:4, this should put you above 1600MHz for the RAM. Set your timings to: CAS: 9, tRCD:9, tRP:9, tRAS:27, and tRC:36.

Prime95 that for an hour. See if you get any errors. If you do, we might have to change your configuration around some.
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post #6330 of 9641
Quote:
Originally Posted by moorhen2 View Post
Yes,better stability and performance.
I read and been told bank Interleaving is better for performance. I figured you guys disable it for stability in overclocking.

Quote:
Bank Interleaving (Off/ 2/ 4 )

(Bank Interleave) DDR RAM memory chips are made of four banks. Addressing all four banks through interleaving at the same time will maximize your performance.

http://www.tomshardware.com/reviews/...am,650-10.html
Quote:
As you can see, with interleaving, the first bank starts transferring data to the CPU in the same cycle that the second bank receives an address from the CPU. Without interleaving, the CPU would send the address to the SDRAM, receive the data requested and then wait for the SDRAM to refresh before initiating the second data transaction. That wastes a lot of clock cycles. That's why the SDRAM's bandwidth increases with interleaving enabled.
http://www.yougamers.com/forum/showthread.php?t=26035
Quote:
Bank interleave allows consecutive data requests to RAM, cycling through each bank of memory. This can give a good performance boost with large RAM modules, since each bank of the module can be accessed consecutively. DRAM chips of 64Mbit or higher have 4 separate internal banks which can be active at the same time. You can set bank interleave to Disable, 2-bank or 4-bank. It is generally recommended that you use the highest setting (4-bank) whenever possible. Bank interleave doesn’t usually affect stability as long as the RAM module can support it.

http://fury-tech.com/en/Resources/Computer-Dictionary/

Edited by ToxicAdam - 4/25/10 at 12:22pm
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