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Completely lost with SSDs

post #1 of 12
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So I've been using my SSD for a while now, I did a fresh install of windows on it, pretty sure I had AHCI enabled when I installed it because I read that it was better for SSDs but I encountered an additional screen that occurs during boot time that says something about detecting RAID devices and that this version of RAID only works with hard drives and CD-ROMs, after a few seconds it loads as normal.

I'm pretty sure I updated all the firmware for my mobo to the most recent version and I also installed the most recent RAID and AHCI firmware, the extra time it takes to load my computer with AHCI or RAID/AHCI enabled annoyed me so much that I disabled it. A few questions:

1. What benefit does it give me?
2. Is there a way to stop this from happening? Perhaps my firmware for my mobo is out of date or my mobo is just too dated to use SSDs effectively?

Another unrelated question, is it detrimental to have a page file on the SSD? I had it disabled before but it caused issues with my BSOD dumps so I reenabled it.
post #2 of 12
1) No TRIM unless you have AHCI enabled.
2) Secondary screen shouldn't take more than a second or two.
3) Not really. Even if you start using your SSD with a page file it won't become bogged down like HDD's will (think mechanical seek time limitation). What you might be concerned about is the extra write cycles by having paging enabled. Personally, since you have enough RAM, I would just leave it off (after you discover the source of BSoD's).
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post #3 of 12
Keep a page file. Always.
Doesn't matter How much memory your PC has, Windows & various programs (VMs for example) will make use of it.
On W7, the overwhelming majority of pagefile operations are reads, and most of the writes are sequential in nature anyway.

Manage it yourself, set it to something like 1024MB and leave it.
Edited by Trigunflame - 1/22/11 at 9:48pm
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post #4 of 12
Quote:
Doesn't matter How much memory your PC has, Windows & various programs will use it.
What's the point of having a page file if your actual active use is well below your RAM threshold? Sure, you can offload inactive data onto your disk, but you'll be loading it off of the same disk if you were to re-launch that application. In this sense, a page file in modern PC's is completely useless until you are actually running out of memory.
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post #5 of 12
Thread Starter 
Quote:
Originally Posted by beers View Post
1) No TRIM unless you have AHCI enabled.
2) Secondary screen shouldn't take more than a second or two.
3) Not really. Even if you start using your SSD with a page file it won't become bogged down like HDD's will (think mechanical seek time limitation). What you might be concerned about is the extra write cycles by having paging enabled. Personally, since you have enough RAM, I would just leave it off (after you discover the source of BSoD's).
Great information, I hadn't realized my PC specs had not been updated with my SSD information in it so it is now updated.

I had initially been concerned about the extra write cycles on the SSD because of the page file but I had read some information that with the more recent SSDs they are quite durable now and it would take many years to wear out the cells, is this true? Is there any other potential issues that may crop up if I don't have a page file on the system drive outside of BSOD memory dumps?

Between RAID and AHCI set in the BIOS I've read that there is no difference if I don't have an actual RAID array set up and that the RAID controller is better than the AHCI controller, should I set it to RAID instead?

+rep for all the help so far, very helpful to know that I lack TRIM without AHCI, I will be re-enabling that when I get home.
post #6 of 12
Quote:
Originally Posted by beers View Post
What's the point of having a page file if your actual active use is well below your RAM threshold? Sure, you can offload inactive data onto your disk, but you'll be loading it off of the same disk if you were to re-launch that application. In this sense, a page file in modern PC's is completely useless until you are actually running out of memory.
Tell that to MS.
http://blogs.msdn.com/b/e7/archive/2...rives-and.aspx
Quote:
Should the pagefile be placed on SSDs?
Yes. Most pagefile operations are small random reads or larger sequential writes, both of which are types of operations that SSDs handle well.
In looking at telemetry data from thousands of traces and focusing on pagefile reads and writes, we find that
Pagefile.sys reads outnumber pagefile.sys writes by about 40 to 1,
Pagefile.sys read sizes are typically quite small, with 67% less than or equal to 4 KB, and 88% less than 16 KB.
Pagefile.sys writes are relatively large, with 62% greater than or equal to 128 KB and 45% being exactly 1 MB in size.
In fact, given typical pagefile reference patterns and the favorable performance characteristics SSDs have on those patterns, there are few files better than the pagefile to place on an SSD.
http://social.answers.microsoft.com/...e-cd1b08a807dc
Quote:
Originally Posted by Ken Blake, Microsoft MVP
Quote:
Originally Posted by fatguy1121
*I have asked questions in the past, and appreciated the answers, along with the response time. Thank You. This time I was wondering if I need a full pagefile. I have 6 gigabytes of DDR3 memory at 2133Mhz currently the fastest memory available, so do I need a pagefile?
Yes, you should have a page file. Two points:

1. If you don't have a page file, you can't use all the RAM you have.
That's because Windows preallocates virtual memory in anticipation of
a possible need for it, even though that allocated virtual memory may
never be used. Without a page file, that allocation has to be made in
real memory, thus tying up that memory and preventing it from being
used for any purpose.

2. There is never a benefit in not having a page file. If it isn't
needed, it won't be used. Don't confuse allocated memory with used
memory.
OCZ, and others all recommend leaving it enabled on your SSD for the reasons I mentioned.
It's been shown time and time again that disabling a pagefile is a bad idea, for both performance and compatibility reasons.
This is regardless of whether you're using an SSD and/or have a ton of memory.
Edited by Trigunflame - 1/22/11 at 7:25pm
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post #7 of 12
Thread Starter 
Quote:
Originally Posted by Trigunflame View Post
Keep a page file. Always.
Doesn't matter How much memory your PC has, Windows & various programs (VMs for example) will make use it.
On W7, the overwhelming majority of pagefile operations are reads, and most of the writes are sequential in nature anyway.

Manage it yourself, set it to something like 1024MB and leave it.
Is it not possible to use my secondary HDD to have the pagefile on it? I have a page file currently enabled on my secondary HDD, but my system still complains if I deactivate the pagefile on my system drive, the SSD.
post #8 of 12
Quote:
Originally Posted by trigunflame
random statements without facts, reasons or proof
You didn't specify any reasons...
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post #9 of 12
Look at the edited post. I'm not going to go into lengthy debate over common knowledge.
I've said what needed to be said.

Good luck to all.
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post #10 of 12
That link states absolutely no argument versus disabling a page file, but thanks for the condescending attitude.
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