Windows 7: ReadyBoost

I just installed a SanDisk 4GB Flash Drive, and enabled ReadyBoost, via the dialog that appeared. In less than a minute, there was a BSOD, and on reboot it took an exceptionally long time to reach the login screen. From that point on, the system seems normal, but I haven't noticed any particular improvements yet. When I went to System Properties, it still shows only 2GBs of memory installed, which is what it already had.

When I view My Computer, it shows the drive totally in red vs blue as the other drives, and when I got to the flash drive in the file manager, the only thing that I see related is something called ReadyBoost.sfcache besides some files and folders for the drive's U3 function. I'm trying to figure how to confirm that it is actually doing what it is supposed to? How is that done?



EDIT: The BSOD that I mentioned was caused by hal.dll + 12903, whatever that means.

Everything you mention, aside from the BSOD, is normal. It's red in My Computer because it has no free space left. Ready boost uses the whole drive. It's my understanding that it uses compression on the drive so you will just see the one file. Think of it like another page file. I had one flash drive that Windows determined was not fast enough and it disabled ready boost on that drive. I got a pop up message when that happened to tell me it wasn't working. If it's not working I think you will know. I don't know how you test it but I do know that my system boots up to my desktop much faster with ready boost enabled. My only complaint is I would like the option to hide the ready boost drive as its not usable for anything else.

Have a look:

ReadyBoost - Setup and Use

That is what is throwing me, because my boot time increased with ReadyBoost, rather than shortened. When the Windows logo page appears and the colored panes begin to fly, they freeze midflight for ~30 seconds before continuing. Afterward, the boot seems normal, whether it is faster or not, I'm not sure.

I understand and accept your explanation of how it is intended to work, except that whereever I have checked, the numbers for both physical and virtual memory remains unchanged. I would have expected either one or the other to have increased.

Since the only effect that I have noticed is regarding boot time, and mine is the reverse of your's, I'm hoping to find some method of determing that it is actually doing it's job.

---------- Post added at 11:18 AM ---------- Previous post was at 11:17 AM ----------

That might be helpful to setup ReadyBoost, but not to diagnose or assess it.

Maybe that U3 thing is messing it up. I believe you can remove it if you are never going to use it.

I would...if I knew that it was the problem, but don't care to do so, unless I had reason to feel certain that this is the case. Originally, I intended for the drive to be dedicated to this purpose full time, but if I can't resolve the boot issue otherwise, I may pull the plug on it, and U3 would be a useful feature to retain.

---------- Post added at 12:28 PM ---------- Previous post was at 11:44 AM ----------

I found this article:

Disable Auto-Run and Auto-Play of U3 Smart Drives Launchpad My Digital Life

Which speaks about how to remove U3, but also tells how to simply disable it. The thing that caught my eye, is that it keeps referring to the flash drive as a CD/ROM. I did a couple of reboots, to see if using the Shift key during the boot would effect the boot time, but it seemed to act like a Pause key, except that it would start running again, after several seconds delay, and the panes still froze midflight as before, so that is not a solution.

Also, I noticed that the first page of the BIOS would sporadically hang on drive detection. This is something that previously has been caused by having flash drives plugged in. The only mention of the flash drive is on the last page of the BIOS run. I'm not sure what to call it, but in a much older rig that I had in the past, it was call the DMI Pool, or something of that sort. But the odd thing was that the drive was listed twice.

I went into the BIOS setup, and found the drive listed as an option within the CD/DVD listings, and tried moving it to first boot priority, but that didn't help. Something still isn't right, but I'm still not sure that it has to do with U3.

I don't have a drive with U3 on it to test but I'm thinking that may be causing some of your problems with ready boost. I'd beg borrow or steal a normal flash drive to test further. I wouldn't really steal one but you know what I mean.

With 2GBs of RAM you are wasting your time with Ready Boost. You will gain nothing. You have to understand that Ready Boost is only a means to increase the speed for fetching a page from outside of RAM. None of the system parameters change because of it. And, you get a certain overhead because the system has to write the pages to both the disk and the stick (safety measure in case you pull the stick all of a sudden). A few minutes ago I made this post. It tells you how to check whether Ready Boost would even get into the act - but with 2GBs of RAM, I doubt it - especially if your stick is slow. You better measure it first with HD Tune and compare it to the access times of your HDD.

What about alphanumeric's comment about ReadyBoost speeding up his boot time?

EDIT: I had intended to run HD Tune on the drive prior to setting up ReadyBoost, but forgot when Windows asked what to do with the drive. I guess that I will have to disable ReadyBoost before testing it...yes?

The result that I got with ReadyBoost remaining enabled is as shown in the screenshot. The sporadic speed is not as I would expect, considering what I saw of a similar test in another thread a while back, but apparently it is fast enough that Windows didn't complain, like it did with a couple of other flash drives that I tried to use. Whether this performance is the result of ReadyBoost or indicative of a lack of normal performance, I'm not sure. If the latter, I would try to exchange it, since it just arrived yesterday, but then I do not know what is considered within normal bounds by the manufacturer or the seller.