Very slow performance, IRQ conflicts ?

Hello,

This is my very first thread on these forums and I hope you guys can fix my issue.
I own an ASUS G1 laptop that I use for gaming, especially online gaming. The laptop itself dates back to 2007 therefore it came in with Vista pre installed. The performance was good there, both offline and online but somehow I wanted to give Windows 7 Professional a try, and there began the issues.

Overall the performance is very bad ; I encounter many lags, audio stuterring while browsing, mouse lag, applications taking ages to launch, bad fps. On games that should run fine (that my laptop should handle without any problem), I've noticed that the framerates are decent offline but whenever I join a server online, I get hugefps drops.
This solution partly helped : "lag" in online games with Windows 7 - by disabling network throttling on multimedia class scheduler, I've managed to reduce fps drops online, but the issue ain't gone completely, and my overall performance remained low, gaming aside.

Someone just told me about hypothetical IRQ conflicts ; I had never heard about it, but checked Device Manager and here is what I've found :
http://img522.imageshack.us/img522/8240/55742579.jpg

Is it normal to have so many ISA lines ? Is it normal to have 3 devices sharing same IRQ (16) ?

Sorry for my lack of knowledge, I'm kinda new to this. Hope you can help, would be much appreciated !

Doesn't help.

Sounds a lot like update driver woes.

Clean install after a zero-fill format.

Before getting ahead of things, if I may... perhaps looking at the issue driver-by-driver will help.

The ASUS website for drivers & downloads is, admittedly, a bit lacking in the "completion" area... but, nontheless, ASUS is top-of-the-line.

Let's clarify:

1.) Vista: x86/x64? Was it Ultimate (Trusted Platform Module, et. al.?)
2.) How did you upgrade to Windows 7 Professional? (method)
3.) Do you have a system recovery disc? If so, are you able to perform repairs?
- If no, have you ran an elevated CMD Prompt in Windows as the "sfc /scannow" utility can clarify integrity issues.
- Driver-wise, assuming you're using a G1, (not G1s or G1sN,) Vista x86, this is the drivers & downloads link from

ASUS (vip.asustek.com)

ASUSTeK Computer Inc. -Support- Drivers and Download G1

As an alternative suggestion, examine your drivers in device manager 1-by-1. My hunch is that you're experiencing an I/O error because of misappropriated drivers, which are making the hardware "confused," to put it in laymans terms.

Note: I asked about the "Ultimate"/x64 version issue because of digitally-signed drivers issue.

When looking at your drivers, a good place to start is getting an indepth diagnostics utility, not just Start/Run/Dxdiag, but, moreover, something like AIDA64 Extreme; running it, then going to Reports; Full (All Pages,) .txt format, save to desktop.

Compare & contrast that against the drivers & downloads section from the ASUS site. Try to update your drivers with theirs, even-if they're seemingly the same.

You could very well have a lemon if you purchased this refurbished. I owned a K50IJ and had a similar issue. Nonetheless, I swear by the brand and refuse to say a bad thing about ASUS.

In short, your slow performance is because a component is missing. I'm probably wrong about the I/O error. Try, also, to dig deep into any crash dumps, C:\Windows\Logs\CBS, as well as your Event Viewer (and check the Windows / Application logs...)

Lastly, run diagnostics with SeaGate SeaTools for Windows to make sure it's not something else... for good measure. This is a bizarre problem.

PS - How did you purchase this? Was there any type of support included? If, say, limited support, you can demand Return Merchandise Authorization (RMA,) at which point they'd send you a prepaid shipping label to print, tape to the box, have UPS scan when they pick it up and you communicate w/ their warranty company, Banker's Warranty Group (if purchased through a retailer like TigerDirect.)

I hope this helps.