I know I'm late coming to the party, but here goes with my experience of applying the 4Gb patch:
I used to play Oblivion many, many moons ago but rapidly ran into the bad crashing and lack of memory problems inherent with a 32-bit XP install and 2 gigs of RAM, and Oblivion and running some nice texture-replacing mods.
I promised myself that one day, when I got an upgraded CPU, GFX and RAM, I would treat myself to a "real" 64-bit OS and try Oblivion with mods once more....
well that day arrived about a month ago, so after installing Win7 Pro 64-bit, killing off vast swathes of totally non-essential stuff, and then thrashing the nuts out of the PC with benchmarks and 24/7 uptimes running BOINC and/or LinX, I eventually had a solid, dependable and completely stable 64-bit platform. (This PC rarely if ever gets switched off as it's also host to some IRC bots that run 24/7 in IRC channels: it's current uptime is now over 6 days and that includes multiple Oblivion sessions each day)
Then I began to install Oblivion (to it's own hard drive!)
As someone who remembers fondly many mods of old, but realised that some of them would now be outdated/superseded, I searched around until I found a nice list of mods I thought would work well for me:
my currently running MOD list:
Spoiler Oblivion.esm
Francesco's Leveled Creatures-Items Mod.esm
Francesco's Optional New Items Add-On.esm
Oscuro's_Oblivion_Overhaul.esm
Mart's Monster Mod.esm
FCOM_Convergence.esm
Armamentarium.esm
Better Cities Resources.esm
Unofficial Oblivion Patch.esp
UOP Vampire Aging & Face Fix.esp
Oblivion Citadel Door Fix.esp
Better Cities .esp
Francesco's Optional Chance of Stronger Bosses.esp
Francesco's Optional Chance of Stronger Enemies.esp
Francesco's Optional Chance of More Enemies.esp
Francesco's Optional Leveled Guards.esp
FCOM_Francescos.esp
FCOM_FrancescosItemsAddOn.esp
FCOM_FrancescosNamedBosses.esp
Arthur_Natural_Weather_HDR_by_Max_Tael.esp
NaturalWeather.esp
Natural_Habitat_by_Max_Tael.esp
Enhanced Water v2.0 HD.esp
Symphony of Violence.esp
MIS.esp
MIS Low Wind.esp
MIS New Sounds Optional Part.esp
Atmospheric Oblivion.esp
Storms & Sound.esp
IWR-Lights.esp
IWR-Windows.esp
IWR-Shutters.esp
AliveWaters.esp
AliveWaters - Koi Addon.esp
AliveWaters - Slaughterfish Addon.esp
Living Economy.esp
Map Marker Overhaul.esp
Improved Hotkeys_Extended.esp
Francesco's Optional Dungeon Chest Loot.esp
Francesco's Optional House Chest Loot.esp
Francesco's Optional Vendor Tweaks.esp
Bob's Armory Oblivion.esp
FCOM_BobsArmory.esp
Oblivion WarCry EV.esp
FCOM_WarCry.esp
Oscuro's_Oblivion_Overhaul.esp
OOO-Water_Weeds.esp
FCOM_Convergence.esp
FCOM_EntropicOrderRebalance.esp
FCOM_DurabilityAndDamage.esp
Mart's Monster Mod - More Wilderness Life.esp
Mart's Monster Mod - More Passive Wildlife.esp
FCOM_NoWyverns.esp
Mart's Monster Mod - No Swarms.esp
Mart's Monster Mod - Looting NPCs & Creatures.esp
Mart's Monster Mod - No Reavers.esp
Mart's Monster Mod - No Carrion Rats.esp
Mart's Monster Mod - No Giants.esp
Mart's Monster Mod - No Slimes.esp
Mart's Monster Mod - No Fiends.esp
Mart's Monster Mod - No Werewolves.esp
Mart's Monster Mod - No Adventurers.esp
Mart's Monster Mod - No Beholdens.esp
Mart's Monster Mod - No Uberhulks.esp
Mart's Monster Mod - No Skeep.esp
Mart's Monster Mod - No Balrogs.esp
Mart's Monster Mod - Dungeons of MMM.esp
Mart's Monster Mod - Gems & Gem Dust.esp
Mart's Monster Mod - Farm Animals.esp
Mart's Monster Mod - Diverse Runeskulls Loot G&GD.esp
FCOM_MoreRandomItems.esp
ArmamentariumLL4OOO.esp
ArmamentariumLLMagicOOO.esp
OOO-WaterFish.esp
allinonebasemant.esp
The Lost Spires.esp
xuldarkforest.esp
LostSpires-DarkForest patch.esp
xulStendarrValley.esp
xulTheHeath.esp
MMMMWL-TheHeath patch.esp
XulEntiusGorge.esp
xulFallenleafEverglade.esp
LostSpires-Everglade patch.esp
xulColovianHighlands_EV.esp
xulChorrolHinterland.esp
xulBeachesOfCyrodiilLostCoast.esp
xulBravilBarrowfields.esp
xulLushWoodlands.esp
xulAncientYews.esp
xulAncientRedwoods.esp
xulCloudtopMountains.esp
xulArriusCreek.esp
xulPatch_AY_AC.esp
xulRollingHills_EV.esp
MMMMWL-RollingHills patch.esp
xulPantherRiver.esp
xulRiverEthe.esp
xulBrenaRiverRavine.esp
xulImperialIsle.esp
xulBlackwoodForest.esp
xulCheydinhalFalls.esp
xulAspenWood.esp
xulSkingradOutskirts.esp
Harvest [Flora].esp
Storms & Sound - The Lost Spires.esp
Storms & Sound - Better Cities.esp
MidasSpells.esp
Francesco's Slower skills x1.5.esp
Better Cities Full.esp
Better Cities - Unique Landscape Barrowfields.esp
Better Cities - Unique Landscape Chorrol Hinterland.esp
Better Cities - Unique Landscape Cheydinhal Falls.esp
Better Cities - Unique Landscape Skingrad Outskirts.esp
Better Cities - VWD of the IC.esp
Better Imperial City.esp
Better Imperial City FPS Patch.esp
Better Cities Full FPS Patch.esp
Francesco's 10 days respawn time - 1-20 day lenght rescale.esp
Bashed Patch, 0.esp
My current basic PC setup is: 64-bit Win7 Pro, 4 Gb RAM, 3.0 GHz dualcore, OK-ish gfx card (HD5750) - dual monitors both at 1280 x 1024
I run Oblivion at 1280 x 1024 with 4 x AA & 2xAF forced in Ati Cat Control Centre, and HDR on, everything set to ultra high or pretty much as high as possible. (this generally gives me 60fps outdoors, whcih is so much faster than I used to get with the old rig it's like a totally new game now!)
There are 120 mods loaded (see spoiler above)
I run Oblivion with the Windows Resource Monitor running on the right hand screen, and when it gets to between 1.7 and 1.8 gigs it would CTD, reliably, all the time.
Then I patched Oblivion with the 4Gb patch I learned about from this very forum after I signed up :hehe:
result: Oblivion crashed at exactly the same point, when Working Set RAM exceeded 1.8 gigs (although now Commit RAM would exceed this limit which it NEVER did before patching, when the working set size reached 1.8Gb it would crash as before)
Scratching my head somewhat, and remembering that I didnt in fact run Oblivion but ran OBSE_loader.exe first, I then ran the 4Gb patch on OBSE_loader.exe as well.
I have googled & read that patching the OBSE_loader.exe willl make all the difference/no difference/crash my PC/delete my entire existence (depending on whose advice I take lol!) - so I thought "must be worth a try?"
Darn it. still the same crashes at the same point. I THEN added Oblivion Stutter Remover, selecting heap type 5 and increasing heapsize to 1024. from it;s default of 450 (as was suggested in these forums)
result: have Oblivion running with a commit of 2.7Gb and working set size of 2.45Gb, buttery-smooth and without crashes.
I tested this out my exiting from my glorious, high-quality Imperial City waterfront shack (they really DO need to check out their advertising in that office, the man said it was a magnificent residence ffs!), and proceeded to run anticlockwise around the entire coastline of Imperial city checking for nirnroot plants. Along the way I got attached by a couple of slaughterfish, 2 bandits, harvested a fair few nirnroots and watched as the 1.8Gb limit was passed, and still the game carried on running smoothly.
I also noticed that, the longer I played, the more Windows 7 noticed that Oblivion was asking for more RAM, and the more Windows 7 made efforts to minimise it's own RAM usage (1.5Gb at game start, reduced to just over 1Gb by the time I had ran all the way round back to my shack & saved the game)
Of course, every now & then Oblivion will just pause, slow up & then CTD, but hell, this is now quite an old game, modded somewhat and with a vastly increased memory requirement than in 'vanilla' form, and... well it's Oblivion isn't it? enough said. There's many good reasons why it's still such a popular game 5 YEARS after it's release, after all.
We love it despite it's crashes, nonetheless :tes:
my $0.02 worth, as per usuall ymmv, this was just my "take" on the 4Gb patching issies I came across.
Joe Pinball
*dons asbestos suit as this is his first post*