Member Avatar for patz1991

Hi All

I just acquired at Dell Dimension 8200 XP (2.0 Ghz, 256 RAM) from a friend who said it was broken. Turned it on noticed a clunking from his hard drive and the machine not booting up at all. Figured his drive was dead and I purchased a new one. First configured the drive for 98SE and then loaded 98SE. PC seemed slow so I then loaded XP on it. Took over a day to load XP. Computer now painfully slow. Takes about 15 minutes to boot up. Any ideas?

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  • Latest Post Latest Post by ComputerNerd13

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This thread shows the usual pattern: a bad drive was suspected and replaced, but extreme sluggishness persisted. Since the new HDD didn’t fix it, focus on the system-level causes that Windows XP exposes when hardware or BIOS settings are wrong. has already tried a new disk and ’s suggestion was covered; was right to look at memory and temperatures; also note ’s hardware-power observation as an example of a non-obvious cause.

Try these steps in order (quick checks first):

  • Check IDE/ATA transfer mode: after repeated disk errors Windows will fall back to PIO mode and the machine becomes agonizingly slow. In Device Manager, look under IDE ATA/ATAPI controllers and confirm the Primary/Secondary channels are using DMA. If stuck in PIO, uninstall the IDE channel and reboot so Windows redetects it.
  • Verify RAM: 256 MB is very low for XP. Run Memtest86 (bootable) to rule out bad DIMMs, and if tests pass, upgrade to at least 512 MB–1 GB for usable performance.
  • Inspect power and connectors: a mis-seated CPU/motherboard power connector or a weak PSU can cause throttling/boot errors. Check the 4-pin/aux CPU power and all motherboard power plugs, and reseat cables.
  • BIOS and boot delays: enable Quick Boot, set HDD first in boot order, and disable “Halt on errors” so the board doesn’t pause on device timeouts. Replace a dead CMOS battery if the BIOS clock/reset errors appear.
  • Cooling and throttling: clean the heatsink/fan, confirm the CPU fan spins and that BIOS hardware monitor shows reasonable temps. Thermal throttling or fan-fail safeties reduce performance.
  • Reinstall drivers and test clean install: install chipset and storage drivers from Dell (or the board vendor) and, if needed, do a fresh OS install with minimal peripherals attached. Also test the HDD with the vendor’s diagnostic utility and swap IDE cables/jumpers if it’s a PATA drive.

If none of these fix it, report results of Memtest, IDE transfer-mode status, and whether the BIOS shows correct RAM/CPU speeds — those details quickly narrow the root cause.

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Member Avatar for reezin14

Hi All

I just acquired at Dell Dimension 8200 XP (2.0 Ghz, 256 RAM) from a friend who said it was broken. Turned it on noticed a clunking from his hard drive and the machine not booting up at all. Figured his drive was dead and I purchased a new one. First configured the drive for 98SE and then loaded 98SE. PC seemed slow so I then loaded XP on it. Took over a day to load XP. Computer now painfully slow. Takes about 15 minutes to boot up. Any ideas?

Try replacing the HDD.

Member Avatar for patz1991

Try replacing the HDD.

That was the first thing I did. HDD is brand new. Still really slow. Thanks.

Member Avatar for kenjutsuka

What kind of RAM is installed in it? If it's running PC100 that's definitely gonna hurt speed. Look at upgrading the RAM. Another thing could be the temps, see if it's running hot.

Member Avatar for ComputerNerd13

I was fixing my brother's Dell Dimension 8200 and it was taking all day (really, ALL DAY) to load Win XP. Once loaded, it would take a long time to boot up and had errors which I got through by hitting F1. Then it would take longer to get to the User screen and finally to bring up a partial desktop. The problem ended up being that there are TWO power connections for 12 VDC power to the Processor, it had the wrong connection going to the motherboard connector (J5C1). Works normally now!

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