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The percentage overclocking thread.

L

Lonyo

Lifer
After reading Anandtechs article and VIAN's comments, such as "nVidia overclock better", I was wondering if they do really (as a %, not in pure MHz).
MHz are all well and good, but not ALL. Personally I think a 100MHz increase on an ATi 9800 is better than a 100MHz increase on a GF FX 5900 (since they are similar speeds, and the Radeon 9800 overclock is a greater %).

But anyway, what numbers have people got on their cards, as a % increase from overclocking?

My numbers: Radeon 9800 non-pro. 325MHz -> 435MHz. 34% increase in core clock speed.
290MHz -> 330MHz 14% increase on the RAM.
 
I have a 27.5% overclock on my GPU and an 11.8% overclock on my memory. i have a 5900NU bios-modded to a 5950.
 
I had a 8500LE that did 300/300 from 250/250.

I had a 9800 Pro that did 480/380. from 380/340. Would do 410Mhz+ on the memory, but artifacted greatly over 390'ish.

I had a Ti4600 that did 335/365, forget stock speeds.

I had a GeForce2 Ultra that did 345/270, forget stock speeds. I was pretty amazed at that core speed, to be honest.

I had a 9700 Pro, and a Ti4200 but forget what they did. Also have a 5900NU currently but havent tried to overclock it yet.

I have a9800XT that does 480/420, from 412/365.

Currently, I dont look at pure Mhz. I think everyone knows Mhz isnt the only thing that matters. Look at the A64, a 2.0gig can trounce a 3gig P4 in games. A 325Mhz core on a 9700 Pro pounded a 500Mhz core on the 5800 Ultra. Like stated earlier, I believe that for each Mhz overclocked, it yields a better performance for ATi cards over nVidias cards. But since nVidias cards can be overclocked so high (usually) that doesnt mean that nVidias are left behind.
 
My BBA R9800Pro hits 385/360, 9% on the mem and close to 1.5% on the GPU before artifacts hit.

Stable OC speed is irrelevant, only artifact free speed matters.
 
Originally posted by: BenSkywalker
My BBA R9800Pro hits 385/360, 9% on the mem and close to 1.5% on the GPU before artifacts hit.

Stable OC speed is irrelevant, only artifact free speed matters.
Click to expand...
What are you using for artifact testing? I haven't tried any overclock on my Sappier 9800P yet. I want to see where it will go with the (too noisy) stock HS/F and where it will go when I replace it with the Arctic Cooling Silencer.
 
What are you using for artifact testing? I haven't tried any overclock on my Sappier 9800P yet. I want to see where it will go with the (too noisy) stock HS/F and where it will go when I replace it with the Arctic Cooling Silencer.
Click to expand...

ATiTool, 3DMark2K1(16x12x32x4x16 looped) and NFSHP2. ATiTool gives me a baseline for artifact free operation at which point I stress the board myself, ended up having to drop the core an additional 5MHZ(NFSHP2- mild artifacts) vs what ATiTool came up with and the memory 10MHZ(serious artifact issues in 3DM2K1). The BBA cooler is quiet, but it runs way the hell too hot, that could easily be what is limiting my core OC at the moment.
 
The BBA cooler is not quiet. Its the exact same one I have. Quiet is subjective. The GF3 was noisy, the GF4 was quiet. The 9700P and 9800P are noisy. To me, a Panaflo L1A @ full 2400 rpm is too loud. The Arctic Cooling Silencer @ 1200 rpm is quiet. At 2400 rpm, its "ok".

The Arctic Cooling Silencer is nice since it is quiet, cools better, and directly exhausts the GPU heat from the case instead of just blowing it back into the case.

I'll do some testing this weekend on it if I get a chance. I'll try that ATiTool program. Thanks for the info.
 
Originally posted by: BenSkywalker
What are you using for artifact testing? I haven't tried any overclock on my Sappier 9800P yet. I want to see where it will go with the (too noisy) stock HS/F and where it will go when I replace it with the Arctic Cooling Silencer.
Click to expand...

ATiTool, 3DMark2K1(16x12x32x4x16 looped) and NFSHP2. ATiTool gives me a baseline for artifact free operation at which point I stress the board myself, ended up having to drop the core an additional 5MHZ(NFSHP2- mild artifacts) vs what ATiTool came up with and the memory 10MHZ(serious artifact issues in 3DM2K1). The BBA cooler is quiet, but it runs way the hell too hot, that could easily be what is limiting my core OC at the moment.
Click to expand...

ATITool is a neat program, but in my very limited useage of it it was very poor at finding/producing artifacts. Using 3dmark 2k3, UT2k3, and Aquamark I had previously found my core OC limit at about 470ish mhz. I ran ATITool and stopped it after it was up to 510mhz. It was reporting no errors, so I decided to fire up 3dmark 2k3 to double check, artifacts everywhere. I don't trust it.
 
The BBA fan creates less noise then any single one of my seven case fans, less noise then my PowerSupply(TT 420), less noise then either of the processor fans I've been using, significantly less noise then my optical drives spinning up and less noise then even my HDs spinning up. That I consider quiet 😉

Quiet isn't that big of a deal to me, but the BBA cooler is utterly inaudible in my rig(which would drive you nuts), you should have heard my old SmartFanII spun up to max RPM, now THAT was loud(60+dB) 😛

The Arctic Cooling Silencer is nice since it is quiet, cools better, and directly exhausts the GPU heat from the case instead of just blowing it back into the case.
Click to expand...

Blows the heat out of the case... Got a link to that? 🙂
 
Originally posted by: BenSkywalker
The BBA fan creates less noise then any single one of my seven case fans, less noise then my PowerSupply(TT 420), less noise then either of the processor fans I've been using, significantly less noise then my optical drives spinning up and less noise then even my HDs spinning up. That I consider quiet 😉

Quiet isn't that big of a deal to me, but the BBA cooler is utterly inaudible in my rig(which would drive you nuts), you should have heard my old SmartFanII spun up to max RPM, now THAT was loud(60+dB) 😛

The Arctic Cooling Silencer is nice since it is quiet, cools better, and directly exhausts the GPU heat from the case instead of just blowing it back into the case.
Click to expand...

Blows the heat out of the case... Got a link to that? 🙂
Click to expand...
Hehe....7 case fans! :Q Yeah, I would not like that too much. No wonder you cant hear the GPU fan. All the other fans are drowning it out. I have 1 case fan, and its a quiet Panaflo L1A that is rpm controlled. My CPU fan is a Panaflo M1A which is also rpm controlled based on temps. PS is an Antec True330 with temp/load controlled fans as well. The GPU fan is the loudest part of my system right now.
Arctic Cooling
Silent PC review
 
Originally posted by: sandorski


ATITool is a neat program, but in my very limited useage of it it was very poor at finding/producing artifacts. Using 3dmark 2k3, UT2k3, and Aquamark I had previously found my core OC limit at about 470ish mhz. I ran ATITool and stopped it after it was up to 510mhz. It was reporting no errors, so I decided to fire up 3dmark 2k3 to double check, artifacts everywhere. I don't trust it.
Click to expand...

Some people dont even trust 3dmark 2003. Link
 
Originally posted by: ZimZum
Originally posted by: sandorski


ATITool is a neat program, but in my very limited useage of it it was very poor at finding/producing artifacts. Using 3dmark 2k3, UT2k3, and Aquamark I had previously found my core OC limit at about 470ish mhz. I ran ATITool and stopped it after it was up to 510mhz. It was reporting no errors, so I decided to fire up 3dmark 2k3 to double check, artifacts everywhere. I don't trust it.
Click to expand...

Some people dont even trust 3dmark 2003. Link
Click to expand...

It would seem, from reading that thread, that 3dmark 2k3 throws softballs. IOW, if 3dmark is artifacting you are likely way past 100% stable overclocking. 3dmark 2k3 might be ok for testing, if your games are not too intense, unless one turns up every eyecandy setting to full. 3dmark 2k3(in it's defense) was able to find artifacting which, in my case, ATITool completely failed to do at much higher overclocks.
 
Originally posted by: Ackmed

I had a GeForce2 Ultra that did 345/270, forget stock speeds. I was pretty amazed at that core speed, to be honest.
Click to expand...
thats sick...wish mine could do that (see the sig)

my fx5200 will not overclock 1mhz core or memory...slightly insane
gf2 ultra goes to 290 core (16%), 260 memory (13%)
-Vivan
 
Hehe....7 case fans!
Click to expand...

Eleven fans total 🙂

No wonder you cant hear the GPU fan. All the other fans are drowning it out. I have 1 case fan, and its a quiet Panaflo L1A that is rpm controlled. My CPU fan is a Panaflo M1A which is also rpm controlled based on temps. PS is an Antec True330 with temp/load controlled fans as well. The GPU fan is the loudest part of my system right now.
Click to expand...

I have a TT Hardcano(came with my XIII) to keep the fans under control and since I switched out my processor fan my rig seems downright quiet. My DVD drive spinning up now makes the most noise in my rig by a decent margin.

Thanks for the link to that Arctic Cooler btw, my wife actually brought up that the vid card was running way too hot and we had to do something about it without prompting from me, I thought she might put her foot down between the upgrades and I've been on a bit of a game buying spree(bought about a dozen in the last couple of weeks) but she really didn't like the case temps when she was playing Tron and it easily cheap enough to make it an impulse buy.

Took so long to reply because I got my monitor in now, man this thing freakin rocks 😀
 
The AC Silencer is cheap. It goes for ~ $22.

No way 7 case fans is quiet. I have 1 that is rpm controlled automatically based on temp via Speedfan. It typically runs ~ 1200 - 1500 rpm. When CPU utilization goe up (games, encoding etc) it goes to 2400 rpm. Quiet is subjective. Ideally, I want to have to look at the case power LED to tell if the PC is turned on. 1 case fan is enough for my thermo-nuclear overclocked P4 system.

Your wife knows what a case temp is??? :Q COOL
 
Originally posted by: BenSkywalker
What are you using for artifact testing? I haven't tried any overclock on my Sappier 9800P yet. I want to see where it will go with the (too noisy) stock HS/F and where it will go when I replace it with the Arctic Cooling Silencer.
Click to expand...

ATiTool, 3DMark2K1(16x12x32x4x16 looped) and NFSHP2. ATiTool gives me a baseline for artifact free operation at which point I stress the board myself, ended up having to drop the core an additional 5MHZ(NFSHP2- mild artifacts) vs what ATiTool came up with and the memory 10MHZ(serious artifact issues in 3DM2K1). The BBA cooler is quiet, but it runs way the hell too hot, that could easily be what is limiting my core OC at the moment.
Click to expand...

I use loops of GLExcess tests - it has specific memory bandwidth and fill rate tests which I loop to check for artifacts depending on whether I increase RAM or core clock. I think I've found my max with it, not had any game issues.
 
The AC Silencer is cheap. It goes for ~ $22.
Click to expand...

I saw that, surprised how cheap the aftermarket GPU coolers are. Never really bothered looking at them before, but this R350 heats up my case too much.

No way 7 case fans is quiet.
Click to expand...

I jst removed my SFII that ran at just a tad under 6K RPM and pushed out 60dB+, by comparison my rig seems very quiet by comparison. Actually, I have every intention of putting the SFII back in at the moment(although with the chip I'm running I'll back it down to 3K RPM so it isn't too loud), probably hook up my exhaust vent for the processor too. Next year I'm thinking either peltier+water cooling or phase change if I can find a setup with GPU+CPU setups out of the box. That will quiet it down a bit and get my temps in a range I like them. 🙂

I have 1 that is rpm controlled automatically based on temp via Speedfan.
Click to expand...

I have a few thermal probes that I can hook up for automatic speed control, but they tend to step up in drastic measures, the fan will go from ~2K to 5K(and then 6K) when a certain threshold is crossed for the processor and thecase fans don't bother me much anyway.

Ideally, I want to have to look at the case power LED to tell if the PC is turned on. 1 case fan is enough for my thermo-nuclear overclocked P4 system.
Click to expand...

My rig is fairly riced so I have no problem on that front- huge window with tri LED case fans along with the glowing TT logo on the front. Now how do you have your rig setup to handle the excessive heat throw by the P4 and the R350 with so little cooling? You using exhaust vents and pulling the hot air out?

Your wife knows what a case temp is???
Click to expand...

Heh, I can hand my wife a TBird Athlon and tell her I need it unlocked without saying anything else she knows what to use and how to do it. She also knows how to short the pins on a SocketA to modify the multipliers from the low to high range on her own. She can build a rig on her own without a problem at all, her father has been building his own since the 8086 days and for case temps he built a 386 back in the day with an AT case that had a LED display on the front displaying case temps(a rarity back then- he still has the case too). She's actually more conerned with the current case temps then I am, been making her nervous when she's playing through Tron 2.0 over the last few days.

I am really interested in how your dealing with your temps, are you using a heavily modified SilentPC setup? While my AGP ambient thermal probe still shows very high ambient temps, my thermal probe hooked up to the higher portion of my case stays right around 30C(I try to keep it under 30, but this board is throwing too much heat).
 
My rig is fairly riced so I have no problem on that front- huge window with tri LED case fans along with the glowing TT logo on the front. Now how do you have your rig setup to handle the excessive heat throw by the P4 and the R350 with so little cooling? You using exhaust vents and pulling the hot air out?
Click to expand...
100% rice free here.

My CPU fan is a 80mm Panaflo M1A controlled by Speedfan. It has a duct that runs to the lower front of the (Antec) case to intake cool air to the CPU. This also doubles as an intake fan. It runs @ 60% rpm until CPU temp reaches 50C, then it goes to 100%

I have 1 rear case fan an 80mm Panaflow L1A which is also controlled by Speedfan. Also 60% rpm until temps rise. The Antec True330 PS varies rpm of its fans on its own. I have a passive Zalman NB HS.

This is enough airflow for my system to run with 100% stability. Addiing any more would only increase noise. It would not add any stability. I dont know why people do such overkill with case fans. It is not needed.

Why are Dells so quiet???
 
My CPU fan is a 80mm Panaflo M1A controlled by Speedfan. It has a duct that runs to the lower front of the (Antec) case to intake cool air to the CPU. This also doubles as an intake fan. It runs @ 60% rpm until CPU temp reaches 50C, then it goes to 100%
Click to expand...

Good way to do it, what level of OC do you have on your processor?

I have 1 rear case fan an 80mm Panaflow L1A which is also controlled by Speedfan. Also 60% rpm until temps rise. The Antec True330 PS varies rpm of its fans on its own. I have a passive Zalman NB HS.
Click to expand...

I know you are getting the AC for the vid card, but isn't is causing an awful lot of heat in your rig as of now? What kind of case temps do you see normally?

This is enough airflow for my system to run with 100% stability. Addiing any more would only increase noise. It would not add any stability. I dont know why people do such overkill with case fans. It is not needed.
Click to expand...

Durability mainly. Reducing the case temps increases the lifespan of the parts. There is OC potential and also issues that can arrise from too much heat, artifacts from the vid card etc., but mainly I do it to increase the lifespan of my parts(HDs particularly). I also have air filters over all of my intake vents which does end up inhibiting airflow enough to make a bit more powerful fans needed over an open setup.

Why are Dells so quiet???
Click to expand...

Dell has requirements they place on suppliers for noise levels, unfortunately this can cause rather serious heat issues with some of their rigs. I was working on a friend's Dell a few weeks ago and his ambient case temps were significantly higher then what I see and he was running a P3 933 w/TNT2-M64 video- his rig had the shroud to exhaust CPU. For the first couple of years this wasn't an issue, when I got a hold of it he was having serious stability issues. Part of the problem was due to the shroud setup his heatsink had become a dust trap and the processor was running way too hot and not moving enough air, enough crashes caused started causing Windows issues and Windows had problems, his RAM was also on its last leg(couldn't pass any stress tests).
 
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