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E5200 OC for kicks

S

SticKx911

2[H]4U
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Mar 14, 2004
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I'm trying to push the limits of my cpu to see if I can get to 4.0 (or really close) before going the rout for upgrading.

I'm rock stable at 3.68 (2.5 stock) but I'm at the edge of my comfort zone of over volting and temperatures. I'm hoping you guys can get me off my butt to get me to push it just a bit further.

my fsb setting is at 1175 according to my bios. I have my ram sync'd 2:3 as my cheap ddr2 800 will not go over 800. so its at 787mhz.

my core voltage is just under 1.4v and my north bridge is at 1.42v. everything else is stock. (I assume overvolting my sb will not have any effect and it is already the HOTTEST thing in my case). I can raise the vcore incrementally but at 1.41v it still isnt stable past 3.7. How far would you push the vcore before it being a risk?

I am on water and at full load my cpu peaks at 55c, but usually hovers at 51c at full. and ~35c at idle. how hot on these guys is dangerous?

yes I know this is getting to be an ancient dual core, but it is treating me well as long as I dont go back to stock (I do notice a significant difference).

I thought about doing peltier cooling just to play with, but if I can get it where I want it without, that would be awesome.
 
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4v? NB at 4.2v? um i really hope these are typo's because neither the cpu nor the NB can run at those voltages.. do you mean you have them running +.40v over stock on the cpu and + .42v over stock on the NB?
 
sorry, yes typos.(or mind slips really)
1.4 vcore
and 1.42 nb.

sorry. thanks for pointing that out. I updated my OP
 
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what voltages were you guys running your c2d's at (or before you tossed 'em)?
 
The 45nm node c2d's are only spec'd by intel up to 1.375v or something like that iirc. I would be curious if a better mobo would let that chip scale more, obviously just theoretical as you would rather upgrade the whole thing but motherboards from the p45 series give new headroom to chips, particuarly quads.

I wonder if you might have a fsb hole, have you tried dropping thew multi and bumping the fsb (while staying at 3.6) to see what ranges work?
 
I built my brother in law a system with an e5200 in it a while back. Using an ancient Thermaltake Silent Tower with dual fans, I was able to get it stable at 3.7Ghz.

This is on an MSI P35 board.

You might be able to squeeze more out of it on a P45 board.
 
R-Type said:
The 45nm node c2d's are only spec'd by intel up to 1.375v or something like that iirc. I would be curious if a better mobo would let that chip scale more, obviously just theoretical as you would rather upgrade the whole thing but motherboards from the p45 series give new headroom to chips, particuarly quads.

I wonder if you might have a fsb hole, have you tried dropping thew multi and bumping the fsb (while staying at 3.6) to see what ranges work?
Click to expand...

yea, I already upgraded the board to get this far :) this'll be my last 775 board. but my last board wouldn't let me exceed 3.1 so that could be. I can get it to post at 3.8+ but not fully boot or run stable (which just makes me itch for more)

I have not tried to lower the multi. would this just test to make sure its the board limiting me not the cpu?
 
You upgraded to a P45 board just to get 4.0Ghz which has not been realized? Any decent stepping 5200 in a decent old 965 board should do over 4.0GHz on water not to mention a P45 board though it will need a bit more voltage then your likely willing to give it. Perhaps you simply have a poor overclocking chip.

Why do say your cheap DDR2 won't go over 800? I have yet to see that. Some may not go much over but most budget kits will do 1000ish with loose timings and a bit of juice. Try 5-5-5-15 2T with 2.1-2.2v and see if you can't get that memory to go.

For example:E5200@4.3GHz/18025 PCmarks
 
well I upgraded the board because the old one went bad, not really for an oc, and this one was in my budget and suited my needs. OC is just for fun. On my old board I could push the ram past 800 just fine, but for some reason this board wont let me post with it over that. I'll try to drop the timings and up the voltage. Never really thought about it before you mentioned it. but yea I was able to get it to like 900 on my old board. I guess 3.7 aint a bad clock, I just have high hopes. I plan on sitting on this setup for maybe another 6 months before tossing it so I guess I may count my blessings and hold out :)
 
SticKx911 said:
well I upgraded the board because the old one went bad, not really for an oc, and this one was in my budget and suited my needs. OC is just for fun. On my old board I could push the ram past 800 just fine, but for some reason this board wont let me post with it over that. I'll try to drop the timings and up the voltage. Never really thought about it before you mentioned it. but yea I was able to get it to like 900 on my old board. I guess 3.7 aint a bad clock, I just have high hopes. I plan on sitting on this setup for maybe another 6 months before tossing it so I guess I may count my blessings and hold out :)
Click to expand...
No your right 3.7 ain't bad @ all. Didn't mean to give the impression otherwise. I get set in benchmarking mode and forget people actually use their PC's.;) You may see 4.0+ yet. Try a bit more Vcore anything below 1.5v is acceptable for daily use assuming of temps are manageable and play with the RAM a bit. Your new board may just not like the memory your using too. Definitely not out of the realm of possibility.
 
ok, spent another hour at it today. I got it to 3.75, and I think that's it. I cranked the vcore all the way to 1.5 and got nada past that. best I got was the log in screen at 3.80 than crash. 3.78 crashed after 30 minutes of burn in.

I dropped the multi real low, the mobo doesn't like the fsb nor the ram so I think thats the best I'll get. anything else I could be missing? I'm sure I'll play with it some more as I really do want to get that number (not sure why, just an itch)

one more question that I'm sure a search will yield, but my bios says my vcore is silly high (to me) at like 1.43, a little higher than I feel comfortable with (even though temps seem nominal). but cpuz says they're 0.02 lower? not much I know, but it could be the difference between me pushing to that 4.0 If I can try 1.52 in my bios....

I know I'm not to bright at times, but I'm bored and just discussing. again, just for kicks. :)
 
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SticKx911 said:
ok, spent another hour at it today. I got it to 3.75, and I think that's it. I cranked the vcore all the way to 1.5 and got nada past that. best I got was the log in screen at 3.80 than crash. 3.78 crashed after 30 minutes of burn in.

I dropped the multi real low, the mobo doesn't like the fsb nor the ram so I think thats the best I'll get. anything else I could be missing? I'm sure I'll play with it some more as I really do want to get that number (not sure why, just an itch)

one more question that I'm sure a search will yield, but my bios says my vcore is silly high (to me) at like 1.43, a little higher than I feel comfortable with (even though temps seem nominal). but cpuz says they're 0.02 lower? not much I know, but it could be the difference between me pushing to that 4.0 If I can try 1.52 in my bios....

I know I'm not to bright at times, but I'm bored and just discussing. again, just for kicks. :)
Click to expand...

http://ark.intel.com/Product.aspx?id=37212

VID Voltage Range 0.8500V-1.3625V
Click to expand...

You're starting to approach suicide voltages.
 
hm...maybe I'll see if I can scale back some. not really noticing much real world difference between the healthy 3.6 and the unhealthy 3.75.
 
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screenshot2.jpg


was able to drop my vcore to 1.425 (bios). since and got the same result. but since I got 3.68ghz stable at less than 4v. it seems like its the better for day to day.
 
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