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memory timings holding me back?
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Original Message
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Name: rwn
Date: February 27, 2006 at 18:19:18 Pacific
Subject: memory timings holding me back?OS: winxp sp2CPU/Ram: 3000+/1gbModel/Manufacturer: custom |
Comment: According to sandra pro my memories capabilities are as follow Slot1: @200mhz 3.0-3-3-8 Slot2: @200mhz 2.5-4-4-8 Slot3: @200mhz 2.5-3-3-8 My current settings are 3.0-2-3-6. What I'm confused about is when relaxing timings do I want a higher value or lower and for wich? I tried setting them at what I thought was the lowest common den, which was 3.0-4-4-8 but my computer wouldn't boot it. I set my timings by spd and everything is fine now, except I want to get a higher fsb i'm now stuck @ 206 (cpu-z says 208.8).Will relaxing my timings let me up the fsb, i'm running pretty stable now (prime95 and I been able to bench with aquamark)? I also tried the mem voltage 2.85v and it would boot but I didn't even check to see if I could up the fsb cause while testing it would freeze in about 45min. Truth can become lie, but if lies become truth we're in trouble.
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Response Number 1
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Name: jam
Date: February 27, 2006 at 19:19:35 Pacific
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Reply: (edit)Don't put too much faith in SANDRA, Try running CPUZ & check the SPD tab. It would also help if you posted your board make/model http://www.cpuid.org/cpuz.php#download BTW, the higher the number, the more "relaxed", which basically means slower but more stable
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Response Number 2
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Name: rwn
Date: February 27, 2006 at 22:26:47 Pacific
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Reply: (edit)current settings are actually 3.0-4-4-8 according to cpu-z, the funny thing is I remember choosing those exact same settings in the bios and the computer would not even post. the motherboard is an old abit kv7 (i wanna try the nf7-s v2) and the ram is all generic. cpu clocked @ (208x11.5)2.4ghz (400fsb version)stable. I'm gunning for the illusive 2.5ghz. While I know lowering the multiplier might yield better results (i think i've tried multi 9-11 the fsb never goes beyond 212 and really unstable at that) the highest the tras will go up in softmenu is 9. Truth can become lie, but if lies become truth we're in trouble.
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Response Number 3
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Name: jam
Date: February 28, 2006 at 05:16:30 Pacific
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Reply: (edit)If your multiplier is unlocked, you must have an early version of the 3000+. That's both good & bad. Having an unlocked multi is a good thing, but having an early version of the Barton core could mean that it's simply not as overclockable as later revisions. To determine whether the CPU or RAM is holding you back, lower your multi to something like 8x. If possible, set your RAM to run at 133MHz & lock the PCI/AGP at 33/66MHz....this will prevent the RAM & PCI/AGP bus from over-overclocking & you'll be able to concentrate solely on the CPU bus. Being that your board is based on a VIA chipset, there's probably no PCI/AGP lock. Without the lock, consider 225MHz to be the max...any higher than that & the PCI bus will exceed the safe max of 37.5MHz. And if you have the option, disable any Spread Spectrum settings. The KT600 chipset is almost equal to the nForce2, but boards based on it generally lack the BIOS settings needed for overclocking. Can you adjust the CPU voltage (vcore)? You may have to raise it a bit to stablize the overclock. If not, you can try a "wire mod" to raise the voltage. I did it successfully on a SOYO KT600 Dragon & was able to run a 2500+ Sempron (10.5 x 166) at 2.1GHz (10.5 x 200).
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Response Number 4
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Name: jam
Date: February 28, 2006 at 05:18:31 Pacific
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Reply: (edit)I missed that last part...SoftMenu? Overclocking software is sometimes problematic. Overclocking via the BIOS is preferrable
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Response Number 5
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Name: rwn
Date: February 28, 2006 at 15:45:23 Pacific
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Reply: (edit)Yea softmenu is a feature in the bios. I have my cpu voltage at 1.85. I don't want to go higher than that as the processor is only rated at 1.65. I don't remember what the max voltage on the cpu was but I think It might've been 1.85 (the bios will let me go higher.) As for the wire trick(it's actually still in there), I've actually done that already and I either did it wrong, or nothing happened. I do not have an option to lock the agp/pci bus. My oc is @2.4ghz with a 209 fsb and it's pretty stable, I just thought that by relaxing the mem timings I could go higher on that multi, I guess I've must've hit my max with convetional ari cooling. I've heard that the 3200+ could do 2.5ghz and the 3000+ is eseentially the same chip. Truth can become lie, but if lies become truth we're in trouble.
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