Win7 and latencies after CPU changes

[Lorne]

I have two computers that I have done CPU changes only to, Not at the same time, I changed my home CPU from a AMD Phen 805 to a Phen 550BE and gifted the 805 to a friend as I intend on upgrading soon.
I noticed a kinda latency and blew it off as it might be caused from going from an X4 to a X2.
Months later I upgraded a workstation of mine from a Athlon 250 to a Athlon 640,, Albiet that is a great improvment but that wierd latency issue popped its ugly head again.
I notice in browsers when its busy opening another tab or continuing to load graphics there is a pause and I can do nothing not even screen changes or open a file manager, This is even showing up in other programs like photoshop or other utilities.
Taskmanager shows no load of any kind but just hangs for moments at a time.
There is also issue with screen refresh eg closing a window/menu and the white box image hanging in the screen.

There were no issues like this untill the CPU changes and during the use of WinXP.
It really seems as though Win7 (64) is having issues with adjusting to a change in its thredding now since the number of cores has changed since the fresh install.
One machine I can see, But 2 showing identical problems with all different hardware and OS install versions.

Anyone else kinda see this?

btw, I have reinstalled gfx drivers and no changes, Im using a NV8600GT in one and a NV210 in another, Way overkill for simple desktop editing and browsing .

 

[Compman55]

I noticed this in win visdta 32 bit when I upgraded from a newcastle 3200+ A64 to a newark 3700+ A64. At that time I decided to dump it and go with 7 so I have no clue.

 

[Anteaus]

Might not help much, but I would try uninstalling and reinstalling the chipset drivers. More unlikely but worth checking would be to see if the processor drivers that windows is using for your particular cpu match whats in your machine.

 

[Compman55]

Also boot to safe mode and see if the old CPU is still in the device list. I have not done this with 7 but in XP it was still there. MAybe delete the old one if still there.

 

[SimMike2]

Almost sounds like some of the cache is being disabled in the CPU. Probably pointless, by try scanning for hardware changes in Device Manager.

 

[Lorne]

The Uninstal of the CPU didnt resolve it, Im going to try the Chipset drivers next.

 

[Lorne]

Uninstalled the drivers and let Win7 re-install them on its own again and things didnt really change, It also hosed the Internal GFX drivers to MS versions.
Dropped over to Nvidia and DL the whole chipset/GFX drivers again and installed.
It seems to have cleared it some, Have to try this at home now to confirm.

Odd that the chipset drivers would have an issue with a CPU change, I would have assumed the HAL would have been the culprit, Unless it reset that 2 when the drivers re installed.

 

[theevilsharpie]

Outside of networking, latencies large enough to cause a delay perceptible by humans are usually caused by storage devices that are beginning to fail and tying up their bus.

 

[Lorne]

I have seen that to, But I know at this time its not a hardware failure, The issue started axactly after the CPU changes and I could undestand if a supply was to weak and going to a more demanding CPU but I actually went to a lower power on one of the systems.

Heres a good example of where it bothers me the most,,, If you try to open a link on another tab the whole system is generaly locked down until the new tab page is fully loaded.
Before I changed CPU I could switch to any tab I wanted (when multiple tabs were available) to back and forth or even open a explorer at the same time (Win-E).

Ive watched the task manager on single and multithredded apps and all cores work correctly per-say,,, (This is really hard to explain)

The chipset drivers didnt fix it, Ive noticed there are days the system seems be peppy and other its latent/laggy.