Willi said:
Playing around with my xp2400, 266 bus model, on a new motherboard,
AN7 to see what it can do. I've got it running a 138x16 2.2 Ghz -
xp3200 speed. I've run Prime 95 over night with no errors. However,
it's gotten to 70 degrees (which I know is too high).
I know what you mean by "xp3200 speed" but don't expect XP3200 performance.
The 3200 runs on a 200Mhz FSB and has a 512KB L2 cache over your CPU.
A few questions:
However, if it's over heating shouldn't I have gotten some errors?
70°C is within the design specs of the CPU so, no, it doesn't mean you'll
get errors. However I wouldn't be confortable running a CPU at above 55°C or
so (diode temp) constantly.
Are Abit EQ temps accurate?
Pass.
I thought the multipliers were locked on these chips, why can I change
the multiplier in the bios?
What chips? Is it a Tbred or a Thorton? The multi is locked on the later,
not on the former. Overwise they're essentially the same CPU.
It seems that with the cooling I have, I'm overdoing this chip, any
suggestions?
What vcore are you running to get this speed stable? It's the vcore that'll
give you the heat. Try backing off the vcore until Prime95 gives you errors,
then going back to the last stable setting.
What I'd do: Take the side off your case, mark where the centre of the CPU
fan lines up, take it to a panel shop and get an 80mm hole cut. Fit side to
case and measure throough the hole the distance from side to CPU fan. Fit an
80mm case fan to inside of case, you can use a wire finger guard and even a
pretty LED fan such as the three-colour one my finace has in the side of her
[email protected]. Subtract the thickness of the fan from the measurement you got
before, then subtract a further 4-5mm for clearance.. Go to the supermarket
and find a tapered plastic glass with a top diameter of approximately 80mm.
Cut it to the length you came up with (A hot knife is good, I used a
chisel-tip in my soldering iron as I don't have a hot knife) and hot-glue it
to the inside of the case fan. You should now have an excellent cooling
solution that sucks cool, outside-case air and ducts it directly to your
CPU. This should drop your CPU diode temp (IME) anything between 8 and 20°C
depending on how efficient your case ventilation was before.
If you in fact have a Tbred CPU (as I do) that is unlocked then get some
PC3200 RAM and run it at 200 x 11 or thereabouts (if your mobo supports
200Mhz FSB). This will greatly improve your system performance as opposed to
running a 133Mhz FSB. My XP1800 Tbred, using the cooling described above,
with the standard AMD HSF, runs at 2.1Ghz all day every day at 200 x 10.5,
benchmarks better than an XP3000+ and sits at around 52°C full-load (SETI)
with a vcore of 1.8v. It won't do 2.2Ghz on a 200 FSB but will do over
2.2Ghz on a 133Mhz FSB. This is because the CPU is actually doing a lot more
work on the faster FSB than the slower one. It's not about CPU speed alone.
BTW, I've crossposted this to alt.comp.hardware.overclocking where it really
should have been in the first place. You'll get more answers there.
