ASUS P5N-E SLI 650i Thread

[Hajpoj]

I'm a gamer, so I expect to upgrade to penryn in 2 years or so.

[willhub]

Originally Posted by TriBeCa

yeah wilhub, let us know how that works....

hajpoj...I've been using 1.7 with the stock heatsink, although I did reseat it with AS5. The stuff ASUS uses is garbage. I've been getting stability issues with high ambient temps (25C+), and I'm not sure if they're CPU or NB issues, but my OC was rock solid with ambient temps at 20-22C. I've been told that 1.7 is known to shorten the life of the chipset regardless of temps, but it's not known by how much. if you're not planning on using the board for more than 4-5 years (and who the hell is??) it shouldn't be a problem though.

Ok, well I tried ram at stock, CPU at 3.37, 1.35V + 100MV, BSOD after like 10 seconds on Orthos.

[TriBeCa]

run a full cycle of tests in memtest with everything at stock...make sure there's nothing wrong with the RAM or the RAM/mobo combination. if that works fine, try keeping the RAM at stock and doing the CPU OC again and running memtest again (should be fine, but just to make sure). if all that's fine it's either your CPU or northbridge...but that fact that you're BSODing and not just locking up or encountering errors makes me think it's the RAM.

edit: your ram isn't set to 1T (commands per clock) is it? it should be 2T until you get a stable OC....

[AzN1337c0d3r]

Originally Posted by dpawl31

Nice to hear!
Are you doing 500FSB on your e6420?
Show some pics!

Unfortunately, it doesn't seem I'll be pushing 500 FSB on my 6420 unless I get some really good water cooling, maybe even thermoelectric in there. Right now, 3.6 GHz is the best moderately stable OC I can get, and it crashed after some hours of Orthos. Not sure if it's the weak power supply (Raidmax 420W? eww vdroop? I do believe my Vcore drops more than 0.15v! under load according to Asus probe, which I know is ****, but im afraid to solder stuff to my mobo) or maybe it's my lack of Southbridge cooling.

Originally Posted by willhub

Does the SB actually get really hot?

And dont all seem to like 500fsb or something?

It does actually burn to touch it for more than half a second. I'm still trying to get my hands on something that will allow me room to upgrade to SLI, yet cools it decently.

Yes, I do believe most of the boards will do 500 FSB, but there's an FSB hole around 400-435 which is why we see some dismal overclocks, because some people think they've hit the max when they're not even close.

Temporary thread hijack: that Vizo cooler than someone posted earlier looks exactly like the one on the NB of my Socket 939 platform. It's an Abit KN8V1.1

[AzN1337c0d3r]

Originally Posted by TriBeCa

70-73 is too high, yes...though i'm not specifically familiar with the tolerance of your chip. you're gonna have to improve your cooling situation somehow if you want to go that high....

Actually I've seen my chip do 87C... according to Asus PC Probe. It crashed shortly after though.

[TriBeCa]

i was getting orthos errors after 4-6 hours because of vdroop. once i put the last little bit of vcore in, so it never vdrooped as below 1.38 (iirc; been a while), i was solid for 8 hours and didn't test further than that.

also...use speedfan instead of asus probe?

if you're SB is that hot...i'd put something on it. that vizo cooler is *supposed* to fit with SLI'd 8800's...I'll confirm in a few days if it looks like it will, based on my one 8800.

and thanks for the info around the FSB hole! I suspected there might be one...i managed 400FSB but couldn't get a post above that. once I put the new cooling in if i'm having trouble over 400FSB i may try jumping past that range.

[AzN1337c0d3r]

The FSB hole on my board is not as pronounced as on some other boards. My first board would refuse to POST at 400-425 no matter what voltages I set. My current board will run stable but only at the highest voltage setting. After I get past that range I can drop the NB voltage back down to 1.39V and it'll be fine until 450 FSB or so which is when I need to up the NB voltage to the next setting (1.56?)

I'm actually typing from the computer as we speak. It's currently been running Orthos for 20 minutes and the CPU is at 75C and still going up -_- I set my VCore to 1.6V and +100 mV. Last night I ran 1.575 + 100 mV and it appears to have rebooted. Maybe the extra VCore will help it maintain stability at the higher temperatures. Then again, it might add more heat than it help stability. Will also look into the Speedfan program.

[TriBeCa]

speedfan is great, as it'll show you temp and voltage graphs so you can check what your temps were over a range of like an hour, while running orthos or w/e.

sounds like my board is just like your current one--i'm at max voltage on the NB, which I need to be stable at 400. If I can drop it down if I push past 425 or so I'll be thrilled. Once I test this stuff out this weekend, rep+ for sure if you're right!

[AzN1337c0d3r]

Looks like 1.6 VCore +100mV crashed. I lowered it to 1.55 and hoping it'll be stable.

Originally Posted by TriBeCa

speedfan is great, as it'll show you temp and voltage graphs so you can check what your temps were over a range of like an hour, while running orthos or w/e.

sounds like my board is just like your current one--i'm at max voltage on the NB, which I need to be stable at 400. If I can drop it down if I push past 425 or so I'll be thrilled. Once I test this stuff out this weekend, rep+ for sure if you're right!

You should try FSB overclocking as your first thing. Lower your CPU multi to 6x and LDT Multi to 2x then see how high you can pump your FSB. Thing is 6x500 is already 3 GHz and if you've got an unlucky C2D, you won't be able to boot at that speed.

[AzN1337c0d3r]

Speedfan makes my Core 0 and Core 1 temperatures read as negative once I go over 85C lolz.