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Crucial M4 Slower with PCIe Sata 3 card than with normal Sata 2 motherboard connection

post #1 of 4
Thread Starter 
So I have this setup:
Operating System: Windows 7 Ultimate 64-bit (6.1, Build 7600)
System Manufacturer: XFX79U
System Model: XFX nForce 790i Ultra 3-Way SLI
BIOS: Phoenix - AwardBIOS v6.00PG
Processor: Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz (4 CPUs), ~3.0GHz
Memory: 4096MB RAM
Available OS Memory: 4094MB RAM
DirectX Version: DirectX 11
Card name: NVIDIA GeForce GTX 480
Manufacturer: NVIDIA
Chip type: GeForce GTX 480
DAC type: Integrated RAMDAC
Display Memory: 3294 MB
Dedicated Memory: 1503 MB
Shared Memory: 1791 MB
Current Mode: 1920 x 1080 (32 bit) (60Hz)
Crucial SSD Model: M4-CT128 M4SSD2 SCSI Disk Device


I recently bought the cruical M4 to use for loading these huge BF3 maps... it does great hooked up to the mobo which is sata 2 (3gbs) -- the 790i missed the new stuff.

So I tested this with "dskspeed" and got a max read of 245 megabytes a second...

I thought- perhaps i could get one of these PCIe sata 3 adapters and get something closer to 450- maybe more... considering its going to max the PCI-e connection

I bought this: http://www.newegg.com/Product/Product.aspx?Item=N82E16816115072

Just tested this again with dsk speed and now my read speed is 205 megabytes a second- what gives?


EDIT - stupid just thought to check, is the PCIe 1x slots on the 790i ultra "2.0" or is that just the one x16 slot...

Can anyone confirm this?
Edited by pcguru000 - 2/14/12 at 6:36pm
Not So Tiny Ivy
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Not So Tiny Ivy
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post #2 of 4
Those cheap PCIe 1x card are complete crap. Leave the drive on the native SATA 2 port.

And use this to bench your SSD and post a screenshot of it: http://alex-is.de/PHP/fusion/downloads.php?cat_id=4&download_id=9
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post #3 of 4
Thread Starter 
Quality software is always nice, the dsk speed thing did return similar results but this ui and functionality is great smile.gif
Heres some screenshots:

http://imgur.com/a/pfjgN

I tried once with the high point and once without.... not to much of a difference now.


When I first tested the M4 it was empty- had never been used AT ALL - literally just plugged it in and ran the test.. .so perhaps that is why its a bit slower now??? Dsk speed did read it at 245mbs last week....


Regardless- do i have any options for hitting true sata 3 speeds on this MOBO ? Really love this thing -solid board, easy overclocking...
Not So Tiny Ivy
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Intel Core I5 3570k Asus P8Z77-M Pro EVGA Nvidia GTX Titan GsKIll 
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OSMonitorKeyboardPower
Windows 7 Ultimate x64 Auria 27" 1440p IPS Cooler Master Quickfire Rapid Rocketfish 900 
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Fractal Design Define R4 iOne Lynx S2 EVGA "Game Pad" Mobo + Crappy 25 Watt Coby 2.1 Speakers 
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Not So Tiny Ivy
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Crucial M4 WD Green LG Super Multi 24x DVD-RW/CD-RW Combo Corsair H100i 
OSMonitorKeyboardPower
Windows 7 Ultimate x64 Auria 27" 1440p IPS Cooler Master Quickfire Rapid Rocketfish 900 
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Fractal Design Define R4 iOne Lynx S2 EVGA "Game Pad" Mobo + Crappy 25 Watt Coby 2.1 Speakers 
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post #4 of 4
You need a $150+ PCIe 4x SATA controller from say LSi.

Your speeds are slower because you do not have native Intel ports and you are dealing with NVIDIA for a SATA controller onboard. frown.gif
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128GB Samsung 830 480GB SanDisk Extreme II 2TB WD Red 2TB Samung Spinpoint F4 
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ROG Rig
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Terrorbyte V2
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CPUMotherboardGraphicsRAM
i7-4790 Asus Maximus VI Extreme MSI GTX 660 Ti PE OC 32GB Kingston HyperX Beast 2400MHz 
Hard DriveHard DriveHard DriveHard Drive
256GB Micron M600 1TB Micron M600 250GB Samsung 840 EVO  1TB WD Blue WD10EZEX 
Hard DriveHard DriveCoolingOS
3TB Toshiba DT01ACA300 256GB Plextor M6e Cooler Master T4 Windows 8.1 Pro 64-Bit 
PowerCase
Corsair RM650 Thermaltake Core v51 
CPUCPUMotherboardRAM
Intel Xeon L5520 Intel Xeon L5520 SuperMicro X8DTi-F 48GB Nanya 1066MHz ECC RDIMM 
Hard DriveHard DriveHard DriveHard Drive
128GB Samsung 830 480GB SanDisk Extreme II 2TB WD Red 2TB Samung Spinpoint F4 
Hard DriveHard DriveHard DriveHard Drive
2TB Hitachi Deskstar 7K3000 1TB Samsung Spinpoint F3  3TB Toshiba DT01ACA300 Seagate Barracuda 7200.14 
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Windows Server 2012 R2 Datacenter  Corsair 650TX  Norco RPC 4224 LSI 9261-8i 
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