ASUS P5A Revision V1.05 has serious issues with K6+ chips from AMD
If you are using a 66MHz FSB K6-2, or an original K6-III that utilizes a higher CPU Voltage, this board is a dream the only motherboard rated better to run an AMD K6-2/III chip is the Gigabyte GA-5AX is considered superior. However, this all is in regards to the revision 1.03, 1.04 motherboards. On the 1.05 and later revisions, a bug was introduced in the Aladdin V chipset that causes issues with the K6+ series of CPUs. These CPUs are the sought after versions as they require a significantly lower CPU Voltage to run, and have a better overclocking functionality. Sadly the ASUS P5A Revision 1.05 does not work with these chips. Even with the last Beta bios released by ASUS. Performance is so degraded that I was getting better frame rates and performance from a Pentium 233 MMX. This is against an AMD K6-III+/450. With the processor being nearly twice the speed and considered more powerful in raw performance terms, this is very off putting. It is a simple chipset issue. So, if you are planning on using a K6-2 or a K6-III normal, non + version, this board will work wonders for you. However, if you are wanting to use a K6-2/III+ model, make certain the revision is 1.04 or earlier. Otherwise the board just won't work for you.
Verified purchase: YesCondition: Pre-owned