I have been having computer problems for a week or 10 days. I have been lurking on the assumption I will need a new build or upgrade. I will post my plans separately but I am curious to get your opinion about my specific issue. The computer turned into a slug. This build is about 5 years old. It is an Intel MB with a Core Duo E6400 at 2.13mhz and 4x1meg ram. I ran Memtest86+ and no problems reported. I tried all kinds of uninstall and reinstall software. Lightroom is virtually unusable and opening pages in Firefox can take minutes. CPU usage routinely runs from 50 to 100%. I used to have a Windows experience index of 5.9. I decided to wipe the boot drive and do a clean install of Win 7. I figured a clean install would help me isolate whether a hardware or software issue. I use a EGA 560 ti GPU. Once Win 7 was installed, I installed the Nvidia drivers and Firefox. No other programs. The Win experience index came back at 2.1. Everything had decent to very good scores (GPU) except the processor. I turned off Aero. Score rose to 2.9. It has now gone from slug to turtle status. BTW my case and PSU are Antec tower and Antec 550W but they are 9 years old. Any thoughts on why the CPU degrade?
I disagree with computer_Wiz the specifications for you machine are quite good, your grandson should consider himself lucky to get a machine of this specification.
However something is clearly wrong with the computer as with a clean install it should fly. The number one suspect should be the hard drive, and you should download and run from the manufacturer of your hard drive web site their diagnostic software.
CPU's do not degrade in speed, they either work or not or become unreliable, they do not slow down (unless under clocked)
Ran Seagate diagnostics and no issues reported. One drive req firmware update. Completed the update and rebooted. Ran Win Experience Index proc score rose from 2.9 to 3.4 Tried Firefox page took 10 sec to load at 50% cpu usage. Took over 30 sec to drop Cpu to 0%. Any other suggestions?
MAYBE could be the PSU.. You said that its pretty old(9 years), sometimes with the use over time the PSU degrade their eficiency, thats means maybe that your system is not getting enough power... Also since you have an EVGA 560 which consume a good amount of power. I can say that getting a fresh instal and trying with a new PSU would remedy the problem, if that doesnt work... Well at least you'll have a new PSU for your new system or actually give an extended life for the current parts...