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Praz

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Posts posted by Praz


  1. Hi guys

     

    As stated in the review:

     

     

    From left to right: the SLI/CrossFireX switch to disable or enable 2- or 3-way graphics options;

     

    Normally seen on ASUS ROG boards, like the Rampage IV Extreme, is a switch that will disable 16x slots for diagnostic purposes;

     

    This switch illuminates LEDs to show the proper PCIe slots to use. Its position has no effect if the the PCIe slots are enabled or disabled.

     


  2. Guys, as I'm sure you can undersatand we are limited as to what we can discuse at the moment. However any warranty or support issues will continue to be handled in the expedite manner they have always been. Below is from the OCZ offices. Thanks for understanding.

     

     

    With the recent news OCZ wants to reassure all our valued customers that the Company is honoring all product warranties. If any customers require support they are encouraged to contact our customer support and forum support teams who will be more than happy to assist.

     


  3. Hey, can someone tell me how well these drives fair on the asmedia controller on the z77 boards. I have a chance at raid 0 with 4 of these drives using the sata 6gbps asmedia controllers. :evilgrin: :evilgrin: :evilgrin: :evilgrin: :evilgrin: :evilgrin: :evilgrin:

    Most of the commonly available ASMedia SATA controllers connect to the system using a single PCIe lane. This configuration doesn't allow sufficient bandwidth for one SATA 6Gb/s SSD much less two or more in RAID.


  4. Sorry that you are disappointed with your purchase of the RevoDrive 3. The specifications and marketing material lists Win7 as the only operating system supported for the drive. The enterprise family of drives based on the same technology support a wide range of operating systems and versions. OCZ works one on one with their enterprise customers to ensure the product works in the intended environment for which the drives are purchased. This includes drivers for operating systems over and above those listed at OCZ.com for public download.


  5. I see your runniong 2T on the command rate. 1T will get better performance also.

     

    After all this, I see your running Ivybridge... LOL. I haven't played with memory with Ivy yet but they say you can get higher frequencies with IvyBridge...

    1T is tough with 32GB at low voltage. The performance difference is negligible anyway.


  6. If they know how to do SSD controller,I dont know why would they not know how to do Sata controller.

    They got first 120-128gb device.

    And you know what is interestingly,i dont see Intel in first eleven.

    Most motherboards using the Marvell SATA 6Gb/s controllers do so from the 912x family chipset. The 912x series uses a single PCIe 2.0 lane to interface with the motherboard. A single PCIe 2.0 lane cannot physically provide the necessary bandwidth required to max out the SATA 6Gb/s interface. The Marvell 9182 chipset used on some high end motherboards uses two PCIe 2.0 lanes and can come close to the performance achievable with the Intel native 6Gb/s posts.

     

    As far as the game load YouTube videos I'm pretty sure those were done using an ASRock x79 board and the native Intel SATA 6Gb/s ports. I can get the system configuration form the person that made the videos if this information is wanted.


  7. My Crosshair 5 Formula with 8GB of 1600MHz rated memory at 2000MHz.

     

     

    Crosshair V Formula

    1090T @4016MHz

    8GB memory @ 2000MHz

    GTX570 x 3

     

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    3ds Max w/V-ray

    Time to render: 1:39:51

     

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  8. However, even though this motherboard supposedly has two PCIE2.0x16 lanes, my GTX 570's in SLI perform worse than on the ASUS motherboards that use two PCIE2.0x8 lanes.

    Asus has been criticized for the x8 slot speed when using 2 video cards with the Maximus IV Extreme when there is a NF200 chipset that will allow x16 speed. But your findings show why this route was taken. The x16 speed does not make up for the added latency imposed by the NF200 chip. But x16 sounds good in the marketing info.


  9. Secure Erase, using HDDErase or HDParm, does restore performance to SSDs. It is simply a command that is sent to the controller of the drive. The controller then runs a built-in routine that resets the NAND to an erased (non-programmed) state. Secure Erase was originally developed for conventional drives. The controller of the drives were programed to write zeros (0x00) to the entire drive once the command was received. With SSDs, NAND programmed with 0x00 will be in a used state and require an erase-before-write which will degrade performance. SSD manufacturers have wrote the firmware of the controllers so that when a Secure Erase command is received 0xFF will be issued to the NAND which results in all cells being placed in an erased state. This is a factory fresh state and writes can take place without the need for an erase first.

     

    Other utilities such as DiskPart do not have this capability because instead of issuing a command that the controller acts upon the utility is doing the actual writes. The /Clean All command of DiskPart will result in 0x00 being written to the entire drive. This is the reason for the difference in completion speed of these type of utilities and an actual ATA spec'd Secure Erase. When the controller of a SSD receives a Secure Erase command a high voltage is applied to the substrate of the NAND and the entire drive is reset to 0xFF in a few hundred milliseconds. DiskPart and other similar utilities actually write 0x00 to the entire drive.


  10. To restore a SSD to a factory fresh state requires a Secure Erase that adheres to the ATA ANSI standard. This is not what the Clean All command does. Unless one uses a utility provided by the drive manufacturer to perform a Secure Erase the only two ways of doing this is with HDDErase or HDParm. Intel was the first SSD manufacturer to specify that a Secure Erase would restore drive performance. I'm not sure why an Intel employee would tell you to use a DiskPart command that leave the drive in a degraded stated state.

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