The first test we ran the 4000PT was using Lavalys's Everest Ultimate Edition, we took reading of the memory starting at 200MHz and then and then worked our way  upward until we maxed out using a 1:1 setting using 3-3-3-8 timing. Once we found the maximum overclock speed we could reach we began to test the stability of the memory using Prime, paying special attention to test # 5 to see if any error began to appear.

 

We tried everything short of a blood sacrifice to get the memory to get the memory up to 275 MHz, but there was no joy in Mudville. No matter how I approached it it would not budge above 270 MHz and I lay a great deal of the blame on the NF4 Ultra motherboard we were using.  Shortly after we started our tests we were unable to adjust the core voltage without the system freezing and having to reset the BIOS.  None the less we were able to run the memory rock stable using Prime for six hours without a single error.

 

	Read	Write	Copy	CAS	Volts
220 MHz	6033	5215	4157	3-3-3-8	2.8
230 MHz	6573	5713	4564	3-3-3-8	2.8
250 MHZ	7144	6243	4981	3-3-3-8	2.8
260 MHz	7469	6498	5181	3-3-3-8	2.8
265 MHz	7615	6616	5291	3-3-3-8	2.8
270 MHZ	7801	6789	5389	3-3-3-8	2.8

	Seconds
210 Mhz	45 sec.
220 MHz	42 sec.
230 MHz	40 sec.
240 MHz	40 sec.
250 Mhz	37 sec.
260 MHz	35 sec.
270 MHz	34 sec.