What is stopping me @ 133 MHz

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When I overclock my P-III 700 I can get 933 MHz without any problem. This is my goal, and this is great! I can run the Unreal Tournament FlyBy for hours without any trouble at all. My problem is running Quake III demo001. It refuses to make eaven one pass, and the game itself won't play more than a minute. What's killing me? My weak points are the memory and the AGP buss at 89 MHz. My memory consists of two non-identical 64 MB chips of PC-100, so I suspect that, but I don't understand why UT runs, and Quake-3 won't. I don't have temperature indications, but the CPU heatsink is always cool, and the video card heatsink (no fan) gets hot enough so that I can only hold my finger on it for 2 seconds (while under load and OC'ed), I can get about 3 seconds when not OC'ed. Any ideas?

Oh yea, 1.65 Volts Core.

Spec's:

CPU PIII-700 FCPGA - Slot 1 Adapter Card
Motherboard Luckystar/Boardrunner (BX) 6ABX2V Ver. 3.1
Memory 128 MB PC-133 (1@128 MB)
Video Card Herculese Prophet Geforce2 MX - AGP
Sound Card SB Live Value
Modem 56K Winmodem
LAN Card D-Link 10/100
Hard Drive 13 GB IDE
CD RW Creative CDRW 8_4_32 E


Eek!<P ID="edit"><FONT SIZE=-1><EM>Edited by Eek_TheCat on 01/08/01 09:40 AM.</EM></FONT></P>
 
It looks like it may be the graphics card, I'm sure I read that Q3a is far more graphics intensive than UT, and if your gpu heatsink is too hot to hold then it needs some help. Perhaps try using a blue orb, or failing that check that the current heatsink is sitting flush on the chip
 
Thanks Tass,
I too am afraid it's the Video card, I will have to pick up an Orb in the near future. I do have a 128 MB stick of PC-133 RAM already coming (PC spec's above are wrong) and may try that first just to see.

If the heat sink is not sitting flush I will be able to see that looking edge on???



Eek!
 
Once again what he said (wondering how many more times am i going to say that after crashmans comments lol) Most likely its your memory that cant handle it and for the video card 486 fan does a great job providing the extra cooling
 
Not sure if I can mechanicaly attach a 486 fan to the heatsink, or if I have to *ug* glue it on. Any suggestions?

Herculese Prophet 2 MX video card.

Eek!
 
I'm saying this to be an [-peep-]. I would suggest putting a P5 or 486 fan on the heatsink. Glue will work fine (that's how mine is attached). Also, consider putting some heatsinks on the memory (if your overclocking it). And get some CAS2 Crucial memory.

-MP Jesse

PS, just had to repeat someone else =)
 
Update:

Added the 486 fan to the GPU heatsink and the temperature difference was amazing. The heatsink barely feels warm now. Quake III still crashes though, but not as fast. It runs for a couple of minutes instead of just one minute. :)

My new stick of 128 MB Mushkin PC 133 just came in, so I'll try that tonight.

Eek!
 
It looks like your gonna have to get that blorb. You helped the thermal prob somewhat, just not enough. The blorb will keep it cool enough to run it forever. Laterz


"I yam what I yam!"
 
New update-My 700@933-the CPU heatsink FELT cool-turned out to be a trick-the heat pad on the bottom was POS. When I removed it and put on some cheap HS paste from Radio Shack, it got noticably warmer, and my CPU temps dropped! So it is posible that your CPU is getting a little warm as well. Also, I found out that the hotter it gets, the more voltage is requred to keep it stable. One day it got very hot in this room and my CPU started acting flakey, I raised the voltage and it straightened out. Catch 22 there-more heat required more voltage creats more heat.........Maybe I should just get some Artic Silver-I like my quiet CPU fan!

Suicide is painless...........
 
Yes, I will need better cooling on my video card. After installing my new memory I could play Quake III for about 5 minutes before it would crash (compared to 1 or 2 minutes before). I noticed the back of the video card (behind the GPU) was still quite warm, whereas the heatsink was kept cool by the new fan. I may just sandwich the card between two heatsinks.

Description of the crash: When the PC locks up on Q III the screen just freezes and the last 1/4 second of sound just repeats over and over... Does this sound like a typical crash due to video card (or an IRQ conflict)? I looked further and noticed my Sound card shares an IRQ (10)with my network card and the PCI to USB bridge. I will try disabling the second two and running Q III again. What's a good site about (or how do I go about) fixing IRQ conflicts. I tried deleting the network card and the PCI/USB in the control panel and rebooting, but Win 98 just put them back in the same IRQ 10. More to come.

Eek!
 
You can check if an overheated GPU is the problem by underclocking it. That will make it run cooler (slower but cooler). Get NVTweak or use the coolbits registry hack.

Also, have you considered that your video card might not like running at 89 Mhz at full capability?
 
That does sound like a video card overheating. CPU overhaeting usually results in a hard lock, but video overheating usually causes a quick lock, cool, lock cycle.

Suicide is painless...........
 
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