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November 29th, 2010, 01:41 AM | #16 |
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Your experience seems very odd. Have you checked your BIOS and Windows settings to prevent them from spinning down? Have you replaced your sata cables, tried different power cables, tried different sata ports on the mobo?
I have almost 20 1TB Seagate 7200.12 drives and 4 2TB 5900rpm LP drives between 2 PCs and none of them spin down except for one 2TB in an external case. I also have 4 2TB Hitachi drives that never spin down. And I have a 2-day old 1TB 7200.12 that does not spin down (I am testing it before adding it to the array). But then again, you are using the Intel onboard Raid, and that could be the culprit. Most of my drives are attached to hardware Raid controllers and only a few are attached to the Intel ICH10R for cache and backups. |
November 29th, 2010, 09:19 AM | #17 | |
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November 29th, 2010, 06:35 PM | #18 | |
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November 29th, 2010, 08:38 PM | #19 | |
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Second, I have a $200-ish Gigabyte motherboard. I might replace it with an Asus motherboard. I have trouble running 6 sticks at higher than DDR3-1400 speed on my current system. |
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December 1st, 2010, 01:17 AM | #20 |
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You're still using the Gigabyte? You may want to preface your comments that seem to generalize the performance of DDR3 (or any other facet of your particular motherboard) with the fact that is your experience with that particular board, not in general. It may mislead some. I personally have built 3 i7 machines with all RAM slots loaded, all on the Asus P6T or x58 boards, and all with the RAM overclocked. All worked fine, the two that weren't my machines ran Corsair XMS.
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December 1st, 2010, 10:14 AM | #21 | |
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December 2nd, 2010, 06:32 AM | #22 | |
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Can you give me the step by step on this as I have never set up a raid 0... I have the same mobo and HD's. Specifically what cable do i need etc. Right now I have the system dive in the SATA III #1 slot, the video storage in the SATA III #2 slot, and my export drive on a SATA II port....going to order another WD Black 1TB soon, for the RAID 0 video "drive" Thanks in advance... |
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December 2nd, 2010, 09:15 AM | #23 | |
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If you must get a consumer desktop drive, go with a non-WD hard drive. If you do choose a WD, you will have to get one of the much-more-expensive RE drives in order to even use RAID 0, let alone RAID 5/6/3. Be advised, however, that although the WD RE drives are optimized for RAID, they are relatively ill-suited for single-drive or JBOD setups because they actually perform slower than comparable non-RAID-optimized drives due to the extra overhead. |
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December 9th, 2010, 01:06 PM | #24 | |
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I finally got my system (still with the Gigabyte motherboard) running stably (at least in Prime95) at 3.84GHz with the memory speed at DDR3-1600 (with all six DIMM slots filled). I had failed to re-adjust certain bus speeds and voltages in the BIOS, which is the reason why the system went into a reboot loop or locked up during the loading of Windows. One potential problem: The CPU temps at this setting just exceeded 90°C (with the thermal cutoff point being 100°C) at 100% load. |
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December 9th, 2010, 08:18 PM | #25 |
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Randall, you're going to fry that system at those temps. What CPU cooler do you have? I can stress test my i7 920 @ 4.2GHZ and not go over 72 degrees c. I didn't want to push it much further than that. The system runs stable at those settings too. Using a Noctua D14 cooler, and the Noctua paste that came with it. Something is wrong if you are pushing over 90c at that speed. I would back it off immediately.
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December 10th, 2010, 12:38 AM | #26 | |
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One more problem: I spoke too soon. I have backed off the overclock, and also backed off the memory speed. At that aforementioned overclock, Prime95 ran stably, but Adobe Media Encoder crashes. I also did a new test, and stress tests at the CPU's stock speed (yes, I now have an i7-950 which was priced low enough not to pass up) still allowed the CPU temperature to reach 70°C at even stock speed. Now, I'm undecided as to what to do next. I never got the opportunity to replace anything yet. I originally wanted to replace either the motherboard and/or the CPU cooler. But I could also replace the memory. And for the record, the Gigabyte motherboard actually "overvolts" the CPU at default settings. With my current i7-950, the CPU core voltage is set to a marked 1.25625V by default (1.232V after Vdroop). I tried lowering the CPU voltage, only to not run stably at higher than stock speed. So much for this lower-end Gigabyte X58 motherboard. My previous Intel DX58SO was actually more stable than the GA-X58A-UD3R even though it has only four DIMM slots (primarily because it lacks both SATA 6 Gbps and USB 3.0 onboard). UPDATE: I lowered the voltage setting to a labeled 1.23125V (actual: 1.2V to 1.22V) at 155x24. The CPU temps still reached 80°C at this setting after running Prime95 for six hours. Last edited by Randall Leong; December 10th, 2010 at 09:23 AM. |
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December 16th, 2010, 11:29 PM | #27 |
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And as it turned out, I could not get either of my i7 CPUs stable above 3.5 to 3.6 GHz without raising the voltage above a marked 1.2V.
Intel has recently replaced its DX58SO motherboard with a newer DX58SO2, which now has the six DIMM slots that most other X58 boards have. It now also has an onboard SATA 6 Gbps controller with two SATA 6 Gbps ports. Still no onboard USB 3.0 capability yet. But since that motherboard costs as much money as an Asus P6X58D-E, I'd pick the Asus in that price range. On the Sandy Bridge front, the initial Sandy Bridge platform - the mainstream LGA 1155 - promises to be even faster than current i7 platforms clock for clock. Unfortunately, it will continue to be saddled by an insufficient number of full-bandwidth PCIe 2.0 lanes, especially since some of the theoretical maximum of 24 PCIe 2.0 full-bandwidth lanes (16 on the CPU, plus up to eight on the P67 PCH) will be eaten up on most such motherboards by a PCIe-to-PCI bridge controller, an onboard USB 3.0 controller and an onboard Realtek or Marvell NIC that also steals one PCIe lane for itself. Therefore, the current LGA 1366 platform will continue to be the choice for a serious video editing system until the release of LGA 2011 and/or LGA 1356 later in 2011. |
December 20th, 2010, 12:04 AM | #28 | |
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As a result, I will try reorienting my system's CPU cooler. I will report back with the results. UPDATE: Just this simple reorientation of the CPU cooler resulted in a roughly 9-degree drop in the CPU temperature. Whereas the old orientation that I used delivered an 81°C maximum result at 3.72 GHz, the new orientation (with the fan blowing upwards towards the case's top fan) delivered (so far) a 72°C maximum at these same speeds and voltages. Last edited by Randall Leong; December 20th, 2010 at 01:49 AM. |
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December 23rd, 2010, 03:43 PM | #29 |
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Are you using thermal paste? If so, what brand? I tested between Arctic Silver 5 and the Noctua branded one that was included with my cooler and the Noctua branded one seemed to be significantly better. Make sure you are following the instructions on the paste and orienting the paste in a way that it lines up with the chips inside the CPU properly. Your temps are still way too high, even at 9 degrees cooler.
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December 23rd, 2010, 04:13 PM | #30 | |
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And yes, I was forced to use Arctic Silver V because I ran out of the Noctua paste, and I could not find it in the stores that I frequently shop at. AS5 requires as much as a 200-hour curing time (this means that the system must be powered on and off during this period, in increments of several hours). By the way, Craig, what program did you use for temperature readings? I use RealTemp, which supposedly reads the temperatures on each individual core. And RealTemp usually reads higher than many other temperature monitoring programs. Last edited by Randall Leong; December 23rd, 2010 at 05:24 PM. |
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