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26th May 2009, 08:44 | #11 | ||
[M] Reviewer Join Date: Nov 2004 Location: Waregem
Posts: 6,466
| Two posts I made over at XS which contain a few observations, which might come in handy some day. For reference only. Quote:
Quote:
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26th May 2009, 20:36 | #12 |
[M] Reviewer Join Date: Nov 2004 Location: Waregem
Posts: 6,466
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26th May 2009, 22:42 | #13 |
[M] Reviewer Join Date: Nov 2004 Location: Waregem
Posts: 6,466
| Testing 3DMark03 again: lods of course. LOD at 2.9 gives me a bit under 9k, at 14 a bit over 9k. The boost is located in GT3, which gains about 1-2FPS. GT1 decreases by a few FPS, though (around 4FPS) |
28th May 2009, 21:29 | #14 |
[M] Reviewer Join Date: Nov 2004 Location: Waregem
Posts: 6,466
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28th May 2009, 21:33 | #15 |
Madshrimp Join Date: May 2002 Location: 7090/Belgium
Posts: 79,021
| 1st spot reclaimed
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28th May 2009, 21:59 | #16 |
[M] Reviewer Join Date: Nov 2004 Location: Waregem
Posts: 6,466
| Having an increase CPU frequency is totally pointless. The only gain is in CH (220 -> 240), but with a normal increase in GPU frequency (hello cold + volts) you could gain a lot, a lot more. |
29th May 2009, 16:33 | #17 |
[M] Reviewer Join Date: Nov 2004 Location: Waregem
Posts: 6,466
| Time for finding the voltage modifications for the IGP. AREA1 First, I measured the voltage on each pin and searched for those that change when I change the voltage in the bios: Code:
Inserting this information in a chart to see the scaling better: Or, more mathematical, correlations: BLUE = HT Link voltage, altough the voltage measured with a DMM = Bios value +0.3v. Not sure if this is correct. RED = NB Core voltage, not entirely sure, but I assume the core voltage is higher than the IGP voltage YELLOW = IGP Voltage, seems pretty correct since when I set the voltage in the bios at 1.6v, I can hit 1.1GHz core and other people do the same frequency at around 1.38v Vigp. PURPLE = ???, no idea what this does. It scales with the NB voltage setting in the bios, though. AREA 2: Red spot on picture underneath is Sideport memory readout (scaling with voltage options in the bios): AREA 3: This chip seems to be the one that's modified on HD3xxx and HD4xxx cards to increase Vgpu, so I added it. Not sure what's it doing on the board, though ... DATASHEET SIDEPORT: http://www.qimonda.com/download.jsp?...rev064_www.pdf Last edited by Massman : 29th May 2009 at 22:16. |
29th May 2009, 19:02 | #18 |
[M] Reviewer Join Date: Nov 2004 Location: Waregem
Posts: 6,466
| (hoping Geoffrey sees this thread) |
29th May 2009, 20:42 | #19 |
[M] Reviewer Join Date: Nov 2004
Posts: 4,127
| I just did, though too informational for me to quickly read through Any requests? |
29th May 2009, 21:01 | #20 |
[M] Reviewer Join Date: Nov 2004 Location: Waregem
Posts: 6,466
| Voltage modifications. Only post #17 is FYI |
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