NF7 craps out @ 225!?!?! WTF?!?

Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
edited September 2003 in Hardware
So in experimenting with this NF7-S v2/JIUHB DLT3C 1800 system I have, I dropped the multi to the lowest the bios will allow (5x) and start bumping the FSB, without touching the voltages. It POSTS @ 5x220, but won't do 5x225. I'm only asking 1.125GHz here... what the hell is going on?
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Comments

  • mmonninmmonnin Centreville, VA
    edited September 2003
    Raise vcore?
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited September 2003
    could try it, but if I'm below the stock clock, why would it care?
  • a2jfreaka2jfreak Houston, TX Member
    edited September 2003
    The chipset only guarantees 400, asking it to do 450 is actually quite a bit. Try upping your chipset voltage and/or putting better cooling on the north bridge. Also, have you done the 133 to 166 mod to your chip? It seems with the nF2 Ultra 400 that 133 chips do better when modded to 166, and 166 do better when modded to 133.

    What is your RAM set to? 1:1 or what? Might want to lower the RAM speed if it's @ 1:1 and/or upping the VDIMM.
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited September 2003
    Haven't modded the chip...

    I can guarantee it's not a cooling issue, on the northbridge or any other component. The system is in the case the dually was in... the cooling setup is as follows:

    Case:
    5x Thermaltake SmartFan2 Case fans @ medium speed (~3500rpms)
    1x 92mm Sunon KD1209PTB2-6 44cfm case fan
    Antec PP403-X 400W PS w/Tt SmartFan2 @ medium-low speed (~2700rpms)

    MB/CPU:
    Thermalright SLK-900A & YSTech 60cfm 92mm
    <a href="http://www.newegg.com/app/viewProduct.asp?description=35-103-122&depa=1">Lapped (flat to 0.0001", 3um finish) Coolermaster DP5-5G11A 50x50mm Heatsink</a> w/20cfm 50x20mm fan on the northbridge
    Generic (Vantec) northbridge heatsink on southbridge )you know those square, green/grey/black heatsinks that were on a lot of the P3 and older athlon boards? It's one of those...

    I've tried upping the chipset voltage from 1.6v to 1.7, which is the highest the bios will allow, and it made no difference. The RAM is PC2100, and it's set @ 6:3 (50%) so it's good up to a 533MHz (pre-DDR) FSB (and I doubt I'm going to get it that high :D)
  • Al_CapownAl_Capown Indiana
    edited September 2003
    What memory are you running? Is your chipset voltage @ 1.7? Is your memory at 2.9?
  • a2jfreaka2jfreak Houston, TX Member
    edited September 2003
    This may seem elementary, but have you checked to make sure the PSU is putting out enough juice?

    Check your rails, as you up the MHz clean juice becomes more and more important.

    Also, you might just be at the limits of the chipset until you mod the CPU (use the wire trick that way there's no risk of damaging the CPU).
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited September 2003
    a2j:
    I haven't checked the voltages except in the BIOS (they've been fine)... I'll check them with a DMM in the morning, but I tend to doubt it's the problem, as I've run the dual barton system with 4hdds and everything off this PS before w/o a problem...

    I'm beginning to think that you're right- I may just have hit the limit of the chipset until I mod the CPU, as if I bump the core voltage on the cpu, it sometimes gives me an endless loop of long beeps, which I THINK means the CPU has overheated/is overheating, which is highly unlikely given my cooling...

    Al:
    with the 6/3 divider I'm using, the memory runs @ or below stock speeds and at the stock voltage... I've got it set up to underclock the RAM as much as possible so I can deal with just the CPU. When the CPU is stably overclocked, I'll start tweaking the memory... The memory itself is 2 256MB Samsung-manufactured PC2100 modules w/Samsung PCBs and chips.
  • ShortyShorty Manchester, UK Icrontian
    edited September 2003
    Geeky...

    I wonder if this is part of your problem...
    Mackanz said
    Omega,

    One of the few "flaws" with the nVidia ultra 400 is that in most cases, a 133 fsb wont go much higher than 215 fsb. If you change that cpu to a default 166 fsb by closing the 3:rd L12 bridge on the cpu or close those 2 pins i showed in the picture, you will have another ball game. If you got the memory, expect around 220-230 after the mod.

    here
  • TheLostSwedeTheLostSwede Trondheim, Norway Icrontian
    edited September 2003
    Either that what Shorty is pointing at or your memory.
    Run them in 4:4 and see how far they will go.
  • ThraxThrax 🐌 Austin, TX Icrontian
    edited September 2003
    Mine doesn't go over 215 without 166 mod. I tried a 166 modded chip yesterday, and got 231.
  • Mt_GoatMt_Goat Head Cheezy Knob Pflugerville (north of Austin) Icrontian
    edited September 2003
    I feel it has more to do with running async than anything else. This affects stability more than most folks realize. If you have a better stick try it as Mac mentioned. I have got my 2100 to 227 stable and a new 2000 stable to 231, both with no mods. The 227 was @5-2-2-2 and the 231 was @6-3-3-2.5 on my XMS3200. Everytime I have tried running async on any board (4 different/VIA and NF2) I can't get close to where I did sync.
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited September 2003
    Thanks guys. Looks like I'll be trying modding the default fsb...

    mtgoat... Thanks for the suggestion. I'll give that a try before I do anything to the CPU... I've got some generic 3200 that'll do 209MHz @ least, so I'll try that...
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited September 2003
    Ok, now I'm getting pissed. The board won't boot at random when it's overclocked. It won't even do 205x11.5 anymore. The A7N8X-Deluxe I had that was partially dead managed better than this thing. What the hell is going on? Why is it that it won't POST above 2300MHz when a few days ago it was doing 2400+?!? It gives me a beep code, which I haven't looked up- it's a continuous loop of a single long beep. what does this mean?
  • a2jfreaka2jfreak Houston, TX Member
    edited September 2003
    Is CPU Interface enabled/disabled?

    Try alternating.
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited September 2003
    Figured it out- it's the RAM. That PC2100 just wasn't cutting it. I threw in a single stick of the PC3200 I have and it boots into windows @ 2.5GHz...
  • a2jfreaka2jfreak Houston, TX Member
    edited September 2003
    Let us know if it is stable. I got mine to load Windows @ over 2.4GHz, but it would freeze after a few minutes.
    Geeky1 said
    Figured it out- it's the RAM. That PC2100 just wasn't cutting it. I threw in a single stick of the PC3200 I have and it boots into windows @ 2.5GHz...
  • ThraxThrax 🐌 Austin, TX Icrontian
    edited September 2003
    You were trying to do it with PC2100?! :rolleyes:

    Christ, I didn't even notice that. :shakehead
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited September 2003
    Thrax... Dual Channel DDR... I still don't get why it didn't like the RAM. If I'm running the RAM below spec (I was- it was @ 50% fsb speed) why would it care?
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited September 2003
    a2j, yea, it's stable @ 2.48 (2.5) GHz... 215x11.5; it just requires 1.9v and a hell of a cooling system to get it to run w/o overheating. The cooling for the following benchmarks was a 92mm Tornado on a SLK-900A

    1:
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited September 2003
    2
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited September 2003
    3
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited September 2003
    Finally, the CPUID info:
  • a2jfreaka2jfreak Houston, TX Member
    edited September 2003
    1.792v? You said it was set to 1.9v.
    My NF7-S v2.0 undervolts too, but not that much. Maybe CPUZ just happened to grab the voltage on a VERY low spike.

    Do you have WinBond installed? What are your temps? How many CFM on your fan?

    I have the SLK-900U but I'm running a pretty quiet fan (34CFM I believe). I might upgrade my fan to see if I can attain 2.4-2.5, but if not then I'm still happy because 2.3 is pretty quick for most of what I'm doing right now.
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited September 2003
    It was set in the BIOS to 1.9v, so yes, CPUZ must have caught it @ a low point. The FSB was jumping around a bit too, from about 210 to about 220... so whatever...

    I have MBM5 installed, and the fan was a 92mm Vantec Tornado, which pushes 119cfm. The temperature MBM was reporting after benchmarking was 90*F...
  • a2jfreaka2jfreak Houston, TX Member
    edited September 2003
    119CFM from 92mm? Can you still hear?
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited September 2003
    Eh? What's that sonny? You got to speak up boy!

    Yes I can still hear, and quite well thank you very much. The Vantec tornados are loud, but they're not THAT loud. They are loud enough that I refuse to use them on a daily basis though. I just put it on there for benchmarking purposes. It's nomral operating speed is probably going to be 2.4GHz with a 60cfm 92mm YSTech...
  • a2jfreaka2jfreak Houston, TX Member
    edited September 2003
    My 80mm Delta was TOO LOUD TO USE ;D
    I think it was 58CFM or 68CFM.

    The two fans I'm considering are:
    YS-Tech 66.3CFM and Vantec ThermoFlow Temperature Controlled Fan
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited September 2003
    It's gonna be interesting to see you use a Thermoflow when the thermistor is in the path of the airflow; unless you orient it to pull air thru the heatsink, it'll never speed up. The YSTech one there is the one I have. I bought it from SVC last week. It's not very loud at all.
  • ThraxThrax 🐌 Austin, TX Icrontian
    edited September 2003
    Sissies.

    I use a 68 CFM delta in one of my computers, and a 80 CFM vantec tornado in another.

    I think they're quiet. :D
  • ShortyShorty Manchester, UK Icrontian
    edited September 2003
    Thrax said
    Sissies.

    I use a 68 CFM delta in one of my computers, and a 80 CFM vantec tornado in another.

    I think they're quiet. :D

    But you are also deaf :D
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