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#1
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Improve SATA performance?
Trying the tweak he
http://tweaks.com/articles/44119/imp...m-ide-to-ahci/ No problem editing the registry but I can't find AHCI in the BIOS! MB is Gigabyte Technology Co., Ltd. GA-MA770-UD3 and BIOS: Award Software International, Inc. FG 12/29/2009. Would it be there under a different name? Kenny Cargill |
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#2
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Improve SATA performance?
On 17/01/2011 19:08, Kenny wrote:
Trying the tweak he http://tweaks.com/articles/44119/imp...m-ide-to-ahci/ No problem editing the registry but I can't find AHCI in the BIOS! MB is Gigabyte Technology Co., Ltd. GA-MA770-UD3 and BIOS: Award Software International, Inc. FG 12/29/2009. Would it be there under a different name? Kenny Cargill You'll find it in BIOS under Peripheral things. There'll be something like "Onboard SATA controller" enabled/disabled, and then "Onboard SATA mode" IDE/AHCI. Ed |
#3
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Improve SATA performance?
Thanks again Ed, there are 3 settings to change in BIOS, OnChip SATA
Controller, OnChip SATA Type & OnChip SATA Port 4/5 Mode. Enabled 1st and the other 2 to AHCI. Doesn't appear to have changed much, Windows Experience Index shows HDD as 5.9 which is the same as before. HDD is pulling down overall index figure which is why I was hoping changing BIOS would speed it up a bit. -- Kenny Cargill "Ed Cryer" wrote in message ... On 17/01/2011 19:08, Kenny wrote: Trying the tweak he http://tweaks.com/articles/44119/imp...m-ide-to-ahci/ No problem editing the registry but I can't find AHCI in the BIOS! MB is Gigabyte Technology Co., Ltd. GA-MA770-UD3 and BIOS: Award Software International, Inc. FG 12/29/2009. Would it be there under a different name? Kenny Cargill You'll find it in BIOS under Peripheral things. There'll be something like "Onboard SATA controller" enabled/disabled, and then "Onboard SATA mode" IDE/AHCI. Ed |
#4
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Improve SATA performance?
Kenny wrote:
Thanks again Ed, there are 3 settings to change in BIOS, OnChip SATA Controller, OnChip SATA Type & OnChip SATA Port 4/5 Mode. Enabled 1st and the other 2 to AHCI. Doesn't appear to have changed much, Windows Experience Index shows HDD as 5.9 which is the same as before. HDD is pulling down overall index figure which is why I was hoping changing BIOS would speed it up a bit. Actually, be careful what you wish for. http://en.wikipedia.org/wiki/Ahci AHCI includes Native Command Queueing (NCQ), which is the ability to complete commands out of sequence. It allows the shortest path to be planned for head movement - but that only happens, when the "queue builds up". http://en.wikipedia.org/wiki/Native_Command_Queuing In a server situation, with ten people doing ten different things, such a feature can be a big win. The disk can't possibly keep up with what the ten people are doing, so the queue builds. And when it does, the controller board on the hard drive, looks at the "to do list", and picks the items that have the least head movement required. That prevents unnecessary excursions of the head and reduces the overall time to complete the "to do list". However, you, as a single user, your typical usage pattern has a queue depth of one. With no queue to "sort" into the most desirable form, the commands complete in the same time as they did before. AHCI has a small amount of overhead associated with it. It means, on average, processing commands on AHCI is slower. If the queue builds up, it "pays for its keep". If there is no queue, then you lose a tiny bit in speed. Now, some users type real fast, are whizzing around doing ten different things at once. Perhaps their queue depth is greater than one. But a lot of users, they're "one thing at a time" kind of people, and for them, NCQ isn't a big deal. Many SSD owners select AHCI, because the Microsoft version of AHCI driver (called MSAHCI), supports the TRIM command. And that is the main reason they'd be looking for that mode of operation, as much as anything else. http://en.wikipedia.org/wiki/TRIM_command HTH, Paul |
#5
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Improve SATA performance?
"Paul" wrote in message ...
Kenny wrote: Thanks again Ed, there are 3 settings to change in BIOS, OnChip SATA Controller, OnChip SATA Type & OnChip SATA Port 4/5 Mode. Enabled 1st and the other 2 to AHCI. Doesn't appear to have changed much, Windows Experience Index shows HDD as 5.9 which is the same as before. HDD is pulling down overall index figure which is why I was hoping changing BIOS would speed it up a bit. Actually, be careful what you wish for. http://en.wikipedia.org/wiki/Ahci AHCI includes Native Command Queueing (NCQ), which is the ability to complete commands out of sequence. It allows the shortest path to be planned for head movement - but that only happens, when the "queue builds up". http://en.wikipedia.org/wiki/Native_Command_Queuing In a server situation, with ten people doing ten different things, such a feature can be a big win. The disk can't possibly keep up with what the ten people are doing, so the queue builds. And when it does, the controller board on the hard drive, looks at the "to do list", and picks the items that have the least head movement required. That prevents unnecessary excursions of the head and reduces the overall time to complete the "to do list". However, you, as a single user, your typical usage pattern has a queue depth of one. With no queue to "sort" into the most desirable form, the commands complete in the same time as they did before. AHCI has a small amount of overhead associated with it. It means, on average, processing commands on AHCI is slower. If the queue builds up, it "pays for its keep". If there is no queue, then you lose a tiny bit in speed. Now, some users type real fast, are whizzing around doing ten different things at once. Perhaps their queue depth is greater than one. But a lot of users, they're "one thing at a time" kind of people, and for them, NCQ isn't a big deal. Many SSD owners select AHCI, because the Microsoft version of AHCI driver (called MSAHCI), supports the TRIM command. And that is the main reason they'd be looking for that mode of operation, as much as anything else. http://en.wikipedia.org/wiki/TRIM_command HTH, Paul Anyone know a similar tweak for XP? I have Windows 7 and XP systems that I switch between in the same box. Thanks. |
#6
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Improve SATA performance?
On Tue, 18 Jan 2011 19:25:05 -0000, "Oldster"
wrote: Anyone know a similar tweak for XP? I have Windows 7 and XP systems that I switch between in the same box. Thanks. I encourage you to try your question again. As it stands, you put your text inline with Paul's very verbose post (rather than quoting properly, not to mention trimming!) and it's way more trouble than I think it's worth to try to go back through Paul's post to see what you might be asking about. -- Char Jackson |
#7
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Improve SATA performance?
On 1/17/2011 16:43, Kenny wrote:
Thanks again Ed, there are 3 settings to change in BIOS, OnChip SATA Controller, OnChip SATA Type & OnChip SATA Port 4/5 Mode. Enabled 1st and the other 2 to AHCI. Doesn't appear to have changed much, Windows Experience Index shows HDD as 5.9 which is the same as before. Mechanical drive throughput doesn't even approach SATA controller transfer speed specifications, and barely passes P-ATA specs for even the fastest drives. And that's assuming sequential data write/reads. http://en.wikipedia.org/wiki/Serial_...to_other_buses http://www.tomshardware.com/reviews/...gb,2600-5.html |
#8
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Improve SATA performance?
Char Jackson wrote:
On Tue, 18 Jan 2011 19:25:05 -0000, "Oldster" wrote: Anyone know a similar tweak for XP? I have Windows 7 and XP systems that I switch between in the same box. Thanks. I encourage you to try your question again. As it stands, you put your text inline with Paul's very verbose post (rather than quoting properly, not to mention trimming!) and it's way more trouble than I think it's worth to try to go back through Paul's post to see what you might be asking about. Some SSDs come with their own maintenance utility, to achieve the TRIM function. But there are also SSDs that don't need TRIM, as they have their own equivalent (garbage collection) function built in. And as this is bleeding edge technology, you can always find pitfalls or poorly implemented work. You can spend your whole day, scouting for issues. If you own an SSD, you'll never be bored :-( http://www.behardware.com/news/10962...listen-up.html Paul |
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