UD3R REV 2.0 + RAID 0 (SATA 3)

[Aussie Allan]

   If you have deeper pockets there always better .... the 640 is popular for it's price against performance ratio

  Aussie Allan

[derekc]

OK.

I'll try what I've got and report any performance increases.  I'm willing to go for the 640 if this is a disaster.

[Dark Mantis]

The only thing I am not sure of is it's ability to use as a boot device. I couldn't see anywhere on the specs where it actually mentioned anything other than storage but that might not mean anything.

[Aussie Allan]

  Overclockers.com  have them for £30.....and they reckon there bootable although I can't find any reference as to bootability anywhere else.....Ring before buying.. 

  http://forums.overclockers.co.uk/showthread.php?t=18201018

  Aussie Allan

[derekc]

I've already got it in the computer and it does boot.  But the speed is appalling in the short PCIEX1_1.  Hence my question about which slot.

[Aussie Allan]

  It's a compound of reasons......although it's a single 9128 Marvell controller, the 640 carries 2 such chips.

  Aussie Allan

[derekc]

Is it not the Marvell 9128 chip that's the downfall of the mobo in the first place??

[Dark Mantis]

Yes well spotted! It is in fact the same chip but it actually works in this board. I guess that it has been altered in some way since the first outings of it. There are many boards that use this chip and no problem now.

[Aussie Allan]

   Yup! Go figure! ...... many manufactures are still putting them on there PCBs.......But They do seem to work in a dual configuration somewhat well.

  The only thing I can attribute to there continued use is the CEO of Marvell negotiated the most amazing , indemnity proof contract in history ........or she's the best looking woman on the planet.

  If some of there later, up and coming controller chips work, half as good as what there designed to do......in three yrs time.....all will be forgiven

  Aussie Allan

[derekc]

I have swapped the Stargate card to PCIEX16_2.  The drive is now showing as faster than when in GSATA 3.  It's not dramatic, but it's an improvement.

The write speeds seem to have gained more then the reads.

My only dilemma now is whether to go all the way to the Rocketraid 640 (£100 as compared to £30)

[Dark Mantis]

I suppose it depends on how much you value that little bit of extra speed.

[Tinker]

Well after a battle on EX58 which is slightly slower than X58A have finally upped my scores. Have used the LSI SAS 9211-4i.
Have wasted a lot of time as it wouldn't run with SSD. LSI give you a mass of information but not how to do things. The Firmware
& Bios have to be updated via DOS that should update in OS DOS window. Gave up on that & worked out how to update via Floppy
with DOS commands. Still no SSD , which worked OK from MOBO & Marvell add on card. This afternoon updated OCZ Firmware
which was easier than expected providing you use as slave. Finally it booted, it's just a raw OS, Win 7 x64 so no tweaks or drivers
yet.

Am getting just below 550mb/s read & 450mb/s write on single SSD & hopefully can be improved on once setup properly.

A lot better than Marvell chipped Card, 150mb/s faster on read. No great improvement on standard SATA 3 HDD though.


Regards tinker.

[derekc]

May I just ask which benchmark software and settings you used to obtain those results.  They're the kind of speeds that I'm after!!

[Dark Mantis]

Generally we tend to use ATTO especially for SSDs. It seems reliable and obviously has the benefit that more people run it for tersting.

[derekc]

Thanks.  At the moment I've used the same, and found very different results from CrystalDiskMark 3.0.1.