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Disabling unused ports to speed up PC - Page 2

post #11 of 18
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but why not do it?
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post #12 of 18
You can't really disable individual SATA ports or individual USB.

What you should do is disable everything you aren't using. This will depend obviously on what you're using and also on the features of the motherboard. For example on my system, I disable IDE and Floppy (can't remember if it has floppy header or not lol), SATA 6gbps ports, USB 3.0 ports, and the onboard sound. There isn't really a guide to it, just search around in your bios for stuff you aren't using. If you accidentally disable something you need, just go back in and enable in.
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post #13 of 18
Thread Starter 
So here's my scientific experiment:

I ran Cinebench 11.5 CPU benchmark test. I closed all windows and programs besides Coretemp (i know it affects it but its pretty consistent and ran it both times) and looked for any running services, turned them off. No programs on windows task manager but cinebench.

Ran it twice, got 3.9 and 3.91.

Restarted, went into Bios and did the following things (parantheses what it was):
Main:Floppy Disc Drive: Disabled (Disabled, I had to do this when first installing OS, was a huge headache and this prevented OS boot/install)
IDE/SATA Configuration:
Primary Master IDE: Disabled (Enabled)
Primary Slave IDE: Disabled (Enabled)
SATA 2 -4: LBA Mode: Disabled (Auto)
SATA 5-6: Not Installed (Auto)

Advanced: Super I/O Configuration:
Onboard Floppy Controller: Disabled (Enabled)
Serial Ports Address: Disabled (Enabled)

PCIPnP: PCI IDE Busmaster: Disabled (Enabled)
This is funny, because Windows would start but logo wouldn't start and I couldn't boot, so I had to turn this back on to Enabled ;/

Chipset: Southbridge: SATA IDE Combined Mode: Disabled (Enabled)

What I did, I have no idea. Anything with the word "SATA" or "IDE" or "Serial" I disabled. When I rebooted to figure out what I shoudn't have disabled, SATA 5-6 weren't listed. Maybe they were never there! I distinctly remember because unlike SATA2-4, I could make them "Not Installed" on LBA mode (whatever that is) as opposed to "Disabled".

Didn't touch USB or sound.

So, I ran Cinebench 11.5 CPU Benchmark twice... and got a score of 3.87, twice. I also had 4 recent Windows 7 Security updates installed upon this restart (couldnt help it) so maybe that affected result. Or, maybe me not having a clue what I did, i did something bad. Or, maybe some background program is running (hey, I was clueless both times so shouldnt my cluelessness make everything even?).

If someone can point out something I disabled that maybe I shouldn't have, great. but unfortunately I just unwittingly made my PC slower lol.
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post #14 of 18
Thread Starter 
I'm going to go back and re-enable everything, see if it goes back up actually. I'll edit this post with results.

edit nevermind i ran it again real quick just before reboot after closing this browser, and got a score of 3.91.

I think it just means that I did nothing at all (or maybe some gain, but some loss because i didnt do it right). i can still turn everything back on and see what happens if anyone's interested though.
Edited by Belial - 3/9/11 at 7:26pm
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post #15 of 18
Quote:
Originally Posted by Belial View Post
I'm going to go back and re-enable everything, see if it goes back up actually. I'll edit this post with results.

edit nevermind i ran it again real quick just before reboot after closing this browser, and got a score of 3.91.

I think it just means that I did nothing at all (or maybe some gain, but some loss because i didnt do it right). i can still turn everything back on and see what happens if anyone's interested though.
It's not really going to affect benchmarks... It's more useful for speeding up POST, or if you are an extreme overclocker using LN2 and you need those last few megahertz.

But the way I look at it, if you're not using them why leave them enabled?
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post #16 of 18
In the old days, there was no such thing as PnP (Plug and Play) devices.
So we had to manually configure all peripherals' and add-on cards that we installed by assigning IRQ's, DMA's, etc. PC's had a very limited number of IRQ's in particular, so sometimes devices had to share the same one. But some devices didn't like, they just wouldn't work that way. So we had to install a device so that it would share an IRQ with something we didn't need, usually a COM port cause that was easiest. When USB first came out, we would turn that off too. Cause USB devices were rare, and the reliablity just sucked anyway.

What people found during that process was their PC would actually get faster with the more things they've disabled. So they would disable everything they didn't need and just leave it off.

Nowadays, none of that matters. The O/S handles all the (seemingly unlimited) resources for all your devices and cards. PC's have so much more resources now, and are so much faster, that it's not necessary to disable anything and probably wouldn't make any difference if you did.

In spite of that, I still turn off everything I don't use. Old habits die hard I suppose.
The three things to turn off first: COM ports, Parallel port, and Floppy Adapter.
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post #17 of 18
Quote:
Originally Posted by xd_1771 View Post
What disabling these usually does is speed up the BIOS POST sequence.
Yup.

I don't use the marvell controller on my board. So i disable it to avoid "no drives detected" and save a few seconds of POST time.
post #18 of 18
I typically disable unused SATA ports since it'll help slightly with POST times on some systems. I also make sure to set my hard drive as the first boot device, this sometimes saves a second or two on boot times. Finally I'll set the memory test to fast or disabled, but even that's probably not needed anymore. When I still was using a Prescott P4 setting the memory test to fast saved almost 15 seconds of POST time!
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