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Overclocking with a Radeon Mobility 7500?

J

jon67

Gawd
Joined
Oct 29, 2004
Messages
576
Now that I've finished HL2 on my home computer (btw the Radeon 9800 Pro did a tremendous job all the way) I've been thinking about installing and playing through the game in DX7 mode on my laptop (Dell Latitude 640C, 1.8GHz P4, 512 MB SO-DIMM 2700, Mobility 7500 32MB). This will make the forthcoming Christmas holidays, which are to be spent away with my family-in-law, a little bit more bearable.

The default core/RAM clocks on my Mobility 7500 are 230/340, while the regular 7500 is clocked at 290/460. I assume both cards have got the same chipset (RV200 core), and that the mobility version is downclocked in order to generate less heat.

Using omega drivers I've overclocked to 270/400 without artifacting in older games (CS:CZ, AvP2, Quake2...). Haven't noticed any difference in heat evolution, but then again the laptop is always running hot and running the fans at max speed when I play games on it. I'd really like run the mob7500 at these clocks or higher when playing HL2, but I don't want to burn the card or any other parts of the laptop as I also use it in my job.

Anybody with relevant experiences (good/bad) or comments? Should I take a chance and run oc'd or should I just leave the clocks at default settings?
 
It's been my experience the R7500's don't run very hot at all. Hell i've got one in this computer right now and it's heatsink is pretty dinky. I can touch the back of the card while running a game for hours and it's still fairly cool, even overclocked (mine only hit around 315Mhz core, def=290).

You should be fine. I think those mobiles are designed to withstand more heat than the deskop chips.
 
I don't know about you, but my poor Radeon M7 could barely play CS. . . cannot even imagine it playing HL2, unless you like, I dunno, get a 300% OC. . .
 
LOL. . . yeah, this is a 2ghz P4 w/ 32mb M7

It'll RUN CS, at around 30fps. . . but running CS and running HL2 is a different story.
 
HL2 minimum requirements:

System: 1.2 Ghz processor or equivalent
RAM:256 MB RAM
Video Memory: 32 MB VRAM
Other: DirectX 7 compatible graphics card

All laptops mentioned in this thread so far should be able to run HL2. How it looks in DX7, well that's a different story... :)
 
jon67 said:
HL2 minimum requirements:

System: 1.2 Ghz processor or equivalent
RAM:256 MB RAM
Video Memory: 32 MB VRAM
Other: DirectX 7 compatible graphics card

All laptops mentioned in this thread so far should be able to run HL2. How it looks in DX7, well that's a different story... :)
Click to expand...

Not terribly bad actually save for the water mostly.
 
30 fps w/ 7500 on 2 ghz p4 in cs 1.6? I get 99 fps dropping into 60s inheavy firefights on my p4 1.6 w/ 7500mobile in it. Gets a bit toasty after a long session on my couch on my lap, but that just means i dont have to worry about knockin up gf as much... ;)
 
Managed to get stable clock frequencies of 260/420 (default 230/330), which probably relates to the fact that the card has been downclocked by the laptop vendor (Dell). 3DMark01SE scores increased from around 3500 at default clocks to more than 4000 oc'ed.

Downloaded and installed HL2 overnight and it runs surprisingly well at 1024*768 and medium/low quality settings. Haven't seen to many HL2 tests with lowest-end cards, so I'll take the time to run some demo benchmarks during Christmas and post the results here (some screenshots as well).
 
So here's how HL2 runs on a lowest-end graphics card with DirectX 7 :) The benchmarks have been generated with the HardwareOC HL2 bm software with minimum details settings, with the Mobility Radeon 7500 at default (230/165) and oc'd (260/210) clock frequencies. Gameplay is relatively fluent with medium detail settings.

Laptop system specs:
Dell Latitude C640 laptop
Pentium 4 1.8GHz
512 MB SO-DIMM PC2100
ATI Mobility Radeon 7500 32MB

non-oc.jpg


oc.jpg
 
how can you force a dx version ? like if i have a dx9 card and that i want to force dx7 to see what it look like, what do i do?
 
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