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Thread: ACHI MODE for SSD over IDE
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27th February 2011, 12:47 AM #1Notebook Evangelist
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ACHI MODE for SSD over IDE
So i had a agility 2 ssd 60GB in my desktop and it got a 7.7 WEI in win 7. The bigger ssd give more performance, i just put a agilty 2 120gb and i am getting 7.2 WEI in win 7. I could not find an achi option in the bios. I am not sure if my machine is SSD optimized.
Can i get some tips?
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27th February 2011, 12:53 AM #2
Re: ACHI MODE for SSD over IDE
WEI is not too good, I don't trust the results too much
HD Tune is better at benchmarks + CRYSTAL DISKMARKI'm not shy, I'm just studying my prey
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27th February 2011, 01:02 AM #3Notebook Evangelist
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Re: ACHI MODE for SSD over IDE
Doesnt using benchmark programs = bad for SSD?
Regardless is there a setting i should change for ssd in win 7, i remember i changed something on my desktop ssd but it was a while ago i think it was the storage controller or something and that helped?
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27th February 2011, 01:18 AM #4
Re: ACHI MODE for SSD over IDE
No the benchmarks are fine,defragmenting should not be done
You are asking about the intel storage drivers, usualy they are installed , I sometimes leave them out
Before you look for them ,run a benchmark with the recomended programsI'm not shy, I'm just studying my prey
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27th February 2011, 01:58 AM #5Notebook Evangelist
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Re: ACHI MODE for SSD over IDE

thats horrible is it not
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27th February 2011, 02:47 AM #6
Re: ACHI MODE for SSD over IDE
Not horrible ,beats any normal hard drive ,but low
Read should be around 175 or so
Must be the Sata 1 interface is slowing throughput
I have not tried any new type faster ssd's in my cf-30's or cf-19 so I don't have the speed that you have so I don't know the limit ,but I bet the interface is the slowdownI'm not shy, I'm just studying my prey
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27th February 2011, 04:29 AM #7Banned
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Re: ACHI MODE for SSD over IDE
Your running AHCI. If you weren't you'd get < 30MB/s 4KB Q=32 performance.
The problem you are seeing is the SF1200 SSD firmware pulls back the performance if you write a lot of non-compressible data, like do repeated CrystalDiskMark tests. Only way to fix to get back the full performance it is to secure-erase the SSD using say hdparm, which involves booting Linux, then hotplugging your SSD so it's not locked.
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27th February 2011, 04:40 AM #8
Re: ACHI MODE for SSD over IDE
@ nando4
The OP's laptop has a sata-1 interface
I think thats the limit hereI'm not shy, I'm just studying my prey
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27th February 2011, 05:58 AM #9Banned
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Re: ACHI MODE for SSD over IDE
It's certainly a contributor. Though it will cap performance to < 140MB/s as is being seen. What I'm seeing is the sequential writes are 80MB/s. They should be faster than that.
I saw writes on my SF1200-based Renice X3 also get pulled back after doing a lot of benchmarking with non-compressible data. See examples, both on SATA-II below. A 120GB unit has *faster* write performance than the 60GB unit I'm using.

TOP: after doing a secure-erase. Full performnace.
BOTTOM: after firmware has pulled back performance due to lots of non-compressible data benchmarking
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27th February 2011, 02:51 PM #10Notebook Evangelist
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Re: ACHI MODE for SSD over IDE
Well i really had no idea, i thought since it was a core duo it had sata 2

Does the mk3 have sata 2?



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