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BIOS memory settings performance difference?

post #1 of 11
Thread Starter 
Ok, so I have my BIOS set to run my memory at 2T like a guy with the same board as me suggested for overclocking. He said, with the settings he's recommended me, he's obtained a decent overclock. So I set the same memory settings as he said (I'm pretty sure), and I can't get the overclock I want! I have OCZ PC3200 Platinum RAM, so the actual RAM isn't the problem here.

Now, I'm stable at 200 MHz x 11 (up from 166 MHz x 11 stock), but I really wanted to up my FSB a bit and hit 210 MHz x 11 = 2310 MHz. The thing is, I can't even get NEAR stable if I up my FSB past 200, if I'm even lucky to get to Windows.

I'll write down my BIOS memory settings for you guys in a few minutes, but until then these are the settings I don't know about and I'm iffy about: a setting where I can choose either 4qw or 8qw (I set it at 4 from advice), and 1T or 2T (set to 2T from advice because it's apparently faster).

What do those settings do, and how much would they affect stability?

Don't bother telling me about CAS latencies or vdimm, as I already know how those work. I'm currently at 200 MHz FSB 1:1 with my RAM, 2.5-3-3-6 and 2.7 vdimm.

Thanks guys! BRB in a bit
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post #2 of 11
You dont need to run them at 2T

In your bios

Set your Dram to a divider 166/333
Set your HTT to x4
Set you multiplier to it's Max
Set your FSB to 210, Reboot... check for stability
Next try 220, Reboot... check for stability
Next 230, Reboot... check for stability
Next 235, Reboot... check for stability
Next 240, Reboot... check for stability
Next 245, Reboot... check for stability
Finally try 250, Reboot... check for stability

250 should be your max at HTTx4, If you start to go over 250 lower HTT to x3
If you go over 260 lower your dram divder to 133/266

If you find you have unstability up your V.core in very small increaments till it's stable. Keep your eye on your temps after rasing the V.core, Dont go above 50c under load.

Have fun and post back if you run into a problem.
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post #3 of 11
Thread Starter 
Buddy, maybe you should read my system specs. I'm running a socket A system, so no HTT.

I DON'T want to run a divider, and considering I have some of the best PC3200 RAM around, I shouldn't have to either for a measly 10 MHz overclock to my RAM.

Also, it's not a voltage problem. I've tried at 2 volts for my vcore and 2.9 for my vdimm just to test the max SAFE ammount of voltage that my system can handle (I'd never actually go that high regularly with an overclock) and it's still unstable.

Also, if I read your overclocking suggestion right, you got the multiplier thing backwards. Shouldn't I set my multiplier to it's minimum if I'm testing for my maximum FSB?

Thanks anyway

Now, here are my BIOS memory settings. I'd like to know what everything after my RAS to CAS delay does, and it's effects on speed and stability:

System Performance - Fast
SDRAM Frequency - Auto
CAS Latency - 2.5
Row Precharge Time - 3
RAS Pulse Width - 6
RAS to CAS Delay - 3
Write Recovery Cycle - 2T
SDRAM Burst Length - 4QW (Can be set to 4QW or 8QW)
SDRAM 1T Command - Disabled
Fast Command - Normal
Fast R-2-R Turnaround - Disabled
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The Beginner
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post #4 of 11
Thread Starter 
TOP! o' the mornin' to ye'
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The Beginner
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CPUMotherboardGraphicsRAM
2500+ Barton @ 2310 MHz MSI KT6 Delta Radeon 9800 Pro @ 9800 XT 2x512MB OCZ Platinum @ 210MHz 2-3-2-6 
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post #5 of 11
Thread Starter 
I hate to do it again, but I'd like to figure this out. Top!
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The Beginner
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CPUMotherboardGraphicsRAM
2500+ Barton @ 2310 MHz MSI KT6 Delta Radeon 9800 Pro @ 9800 XT 2x512MB OCZ Platinum @ 210MHz 2-3-2-6 
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Windows XP Professional Hyundai V560 14.1" CRT Logitech Generic Media Keyboard 300 Watt Sparkle 
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post #6 of 11
Try loosening the timings to 2.5-3-3-10 and see if it works. If so then lower the timings back down until it won't.

I couldn't help but notice your power supply listed as "300 Watt uknown manufact." If it's a no-name it may not be putting out enough power for your overclocking efforts.
    
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post #7 of 11
Thread Starter 
But see that's the thing. I've tried upping my FSB and my memory with my multiplier at it's lowest, so I don't think it's a power problem. Besides, according to my calculations my PSU should be able to support any overclocking efforts I make.

Does Asus make PSU's? There's an Asus sticker on my PSU. I don't know if that's from the PSU or a sticker from my brother's motherboard
The Beginner
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CPUMotherboardGraphicsRAM
2500+ Barton @ 2310 MHz MSI KT6 Delta Radeon 9800 Pro @ 9800 XT 2x512MB OCZ Platinum @ 210MHz 2-3-2-6 
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Windows XP Professional Hyundai V560 14.1" CRT Logitech Generic Media Keyboard 300 Watt Sparkle 
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Antec SLK3000B Logitech MX310 Generic 
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The Beginner
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CPUMotherboardGraphicsRAM
2500+ Barton @ 2310 MHz MSI KT6 Delta Radeon 9800 Pro @ 9800 XT 2x512MB OCZ Platinum @ 210MHz 2-3-2-6 
OSMonitorKeyboardPower
Windows XP Professional Hyundai V560 14.1" CRT Logitech Generic Media Keyboard 300 Watt Sparkle 
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Antec SLK3000B Logitech MX310 Generic 
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post #8 of 11
It could very well be an Asus PSU. I don't have any word on how good(or bad) they may be so I couldn't advise you there. Bear in mind that wattage isn't the only rating to take into consideration. How many amps on the 12v rail is just as, if not more, important.

If it's not a power issue, it could just be that you've hit your max overclock. Even two identical systems may or may not be able to hit the same numbers.
    
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Intel Q6700 @ 3.3 GHz ASUS P5N-D 750i SLi MSI N460GTX Hawk 1GB G.Skill 4GB PQ 
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post #9 of 11
Thread Starter 
Well, I have a craptastic motherboard, but even a guy with the same motherboard said I should be able to hit atleast 215 with it. He stayed at 225 when he had his :S Oh, and I've tried with the loosest timings I could set, so it's not that.
The Beginner
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CPUMotherboardGraphicsRAM
2500+ Barton @ 2310 MHz MSI KT6 Delta Radeon 9800 Pro @ 9800 XT 2x512MB OCZ Platinum @ 210MHz 2-3-2-6 
OSMonitorKeyboardPower
Windows XP Professional Hyundai V560 14.1" CRT Logitech Generic Media Keyboard 300 Watt Sparkle 
CaseMouseMouse Pad
Antec SLK3000B Logitech MX310 Generic 
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The Beginner
(13 items)
 
  
CPUMotherboardGraphicsRAM
2500+ Barton @ 2310 MHz MSI KT6 Delta Radeon 9800 Pro @ 9800 XT 2x512MB OCZ Platinum @ 210MHz 2-3-2-6 
OSMonitorKeyboardPower
Windows XP Professional Hyundai V560 14.1" CRT Logitech Generic Media Keyboard 300 Watt Sparkle 
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Antec SLK3000B Logitech MX310 Generic 
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post #10 of 11
It could just be that your CPU has hit its limit , even tho i can easily get past 2.20 on mine...
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My System
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