Asus P4G8X AGP/PCI Freq Tests

[Mikki]

These tests were done using a PCI Bus Analyzer

AGP/PCI Lock Test

With the freq setting set at 33.3mhz, I tested each fsb setting from 133fsb to 170fsb. The lock worked fine, without so much as a flux.

At regular intervals I ran a benchmark and copied a large file from my cd-rom in an attempt to load the bus, and the freq never wavered.

I also tried setting the freq setting at different freq’s and at different fsb’s and all seemed to work fine.

AGP/PCI Auto Setting Test

This is where it get’s interesting. I set the freq setting to Auto, and then tested each fsb setting from 133fsb to 170fsb. Here are my results:

FSB(mhz)—PCI Bus freq(mhz)
133—33.6
134—33.4-33.5
135—33.7
136—33.9-34.0
137—34.2
138—34.4-34.5
139—34.7
140—34.9-35.0
141—35.2
142—35.4-35.5
143—35.7
144—35.9-36.0
145—36.2
146—36.4-36.5
147—36.7
148—36.9-37.0
149—37.2
150—37.4-37.5
151—37.7
152—37.9-38.0
153—38.2
154—38.4-38.5
155—38.7
156—38.9-39.0
157—39.2
158—39.4-39.5
159—39.7
160—39.9-40.0
161—40.2
162—40.4-40.5
163—40.7
164—40.9-41.0
165—41.2
166—41.4-41.5
167—41.7
168—41.9-42.0
169—42.2
170—42.4-42.5
171—42.7
172—43.0
173—43.2
174—43.4-43.5
175—43.7
176—43.9-44.0
177—44.2
178—44.5
179—44.7
180—44.9-45.0
181—45.2
182—45.4
183—45.7
184—45.9-46.0
185—46.2
186—46.5
187—46.7
188—46.9-47.0
189—47.2
190—47.5
191—47.7
192—47.9
193—48.2
194—48.4
195—48.7
196—49.0
197—49.2
198—49.5
199—49.7
200—50.0
201—33.4-33.5
202—33.6
203—33.8
204—34.0
205—34.1
206—34.3
207—34.4-34.5

PCI Bus Overclocking Test
33.3mhz to 38.7mhz worked as advertised, settings above fluxuated as follows…
39.0mhz = 38.9-39.1mhz
39.3mhz = 39.2-39.3mhz
39.6mhz = 39.5-39.6mhz
39.9mhz = 39.8-39.9mhz
40.2mhz = 40.1-40.3mhz

[ThugsRook]

like the results show ~ do not use the auto function for agp lock.

anyone attempting to run 800fsb on this board needs to realize they need to go to 201fsb.

even then, these boards are very flakey. there is a semi-problem with this board running past 178fsb 100% stable.

some can some cant ~ its not a cpu or ram problem either.
maybe something todo with chipset voltage?

great work Mikki

:wave:

[Tony]

Its chipset voltage as hipto5 did show on xtreme.With 1.8V the boards fly over 200fsb no problem.

[PiLsY]

Chipset voltage not AGP voltage on this board?

Shame if not.

PiLsY.