E6700 Lapped IHS = 2-7C cooler under load
- eva2000
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E6700 Lapped IHS = 2-7C cooler under load
Decided to lap my E6700 B1 IHS and it's the best lap job i've done so far compared to what I did on E6600s. E6600s didn't gain any clocks or temp reductions when lapped as the IHS was already flat.
But E6700 cpu when i started to lap only the 4 corners went to copper for a while so the IHS was definitely concave! See here the edges were first to go.
Not perfect as there's still some slight scratches but enough to produce this
So far prelim tests at 3600mhz at 1.394v show a 3-4C reduction in idle temps and 5-7C reduction in load temps but i forgot what the room temps where before lapping so who knows heh.
E6700 @3600Mhz at 1.394v with Corsair Hydrocool 200EX 1/4" OD tubing
Before lapping
cpu idle = 37-40C
cpu load = 65-67C
After lapping
cpu idle = 34-36C
cpu load = 60-63C
E6700 @3734Mhz at 1.418v with Corsair Hydrocool 200EX 1/4" OD tubing
Before lapping
cpu idle = 36-39C
cpu load = 69C
After lapping
cpu idle = 36-39C
cpu load = 65-67C - 2-4C improvement
Now that the E6700 is lapped i'm about to pull off 4000mhz at 1.55v (1.6v bios) on Intel D975XBX rev304 1334 bios which just my puny Corsair Hydrocool 200EX 1/4" OD tubed unit. Before E6700 unlapped for 4004mhz took 1.65v bios for P5W DH DX on Swiftech G4 Storm/MCP655/Thermochill 120.3 (this DIY H20 averages 7C cooler temps under load than Hydrocool 200EX)
Click image for larger full screenshots...
Before lapping
- E6700 B1 on P5W DH with Swiftech G4 Storm/MCP655/Thermochill 120.3
@4004mhz at 1.65v bios set (1.62v)
Single 32M
After lapping
- E6700 B1 on Intel D975XBX rev304 with Corsair Hydrocool 200EX
@4000mhz at 1.6v bios set (1.55v)
Yes different timings used but just comparing vcore needed to hit 4Ghz
But E6700 cpu when i started to lap only the 4 corners went to copper for a while so the IHS was definitely concave! See here the edges were first to go.
Not perfect as there's still some slight scratches but enough to produce this
So far prelim tests at 3600mhz at 1.394v show a 3-4C reduction in idle temps and 5-7C reduction in load temps but i forgot what the room temps where before lapping so who knows heh.
E6700 @3600Mhz at 1.394v with Corsair Hydrocool 200EX 1/4" OD tubing
Before lapping
cpu idle = 37-40C
cpu load = 65-67C
After lapping
cpu idle = 34-36C
cpu load = 60-63C
E6700 @3734Mhz at 1.418v with Corsair Hydrocool 200EX 1/4" OD tubing
Before lapping
cpu idle = 36-39C
cpu load = 69C
After lapping
cpu idle = 36-39C
cpu load = 65-67C - 2-4C improvement
Now that the E6700 is lapped i'm about to pull off 4000mhz at 1.55v (1.6v bios) on Intel D975XBX rev304 1334 bios which just my puny Corsair Hydrocool 200EX 1/4" OD tubed unit. Before E6700 unlapped for 4004mhz took 1.65v bios for P5W DH DX on Swiftech G4 Storm/MCP655/Thermochill 120.3 (this DIY H20 averages 7C cooler temps under load than Hydrocool 200EX)
Click image for larger full screenshots...
Before lapping
- E6700 B1 on P5W DH with Swiftech G4 Storm/MCP655/Thermochill 120.3
@4004mhz at 1.65v bios set (1.62v)
Single 32M
After lapping
- E6700 B1 on Intel D975XBX rev304 with Corsair Hydrocool 200EX
@4000mhz at 1.6v bios set (1.55v)
Yes different timings used but just comparing vcore needed to hit 4Ghz
- dicecca112
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I'm pretty sure mines concave as well. But I'll probably go the RMA route instead. I bought it Open Box from ZZF, and it looks like whoever mounted it well for one used way to much As5, took me an hour to remove all the spill over and the only marks on the head spreaders are in the corners. We'll see how it performs. I hope to get everything up and running by tonight.
eva I was thinking I have seen this writeup before then it dawned on my at OCforums.
eva I was thinking I have seen this writeup before then it dawned on my at OCforums.
Nice work eva.
Its reassuring to see that you are getting similar temps to me at 3.6G, though im having difficulty getting my OC dual prime stable, I had to put the volts up to 1.65 (1.6 'real') and I dont want to really put more into it, Do you think that its worth lapping the IHS to see if it would help, or would you reccomend I stay well away from it (as I've never lapped anything before (Yeah, i know how flat it has to be when you've finished!)).
And a question for apop, how many MCH volts do you have to use for 400Mhz FSB on the aw9d max?
Dan
Its reassuring to see that you are getting similar temps to me at 3.6G, though im having difficulty getting my OC dual prime stable, I had to put the volts up to 1.65 (1.6 'real') and I dont want to really put more into it, Do you think that its worth lapping the IHS to see if it would help, or would you reccomend I stay well away from it (as I've never lapped anything before (Yeah, i know how flat it has to be when you've finished!)).
And a question for apop, how many MCH volts do you have to use for 400Mhz FSB on the aw9d max?
Dan
- eva2000
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yeah it's called share the love (knowledge)dicecca112 wrote: eva I was thinking I have seen this writeup before then it dawned on my at OCforums.
DMB, you on water or air ? i guess lapping would help more for water than air but if you have to shove 1.6v into it for 3.6ghz then it's probably just a poor oc'er to begin with.
Maybe better giving lady luck a try and get a newer E6600 and hope for the best
- eva2000
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hehe.. no amount of lapping will help that cpuApoptosis wrote:
Already had one to 90C on the bad axe board that got stuck at 1.9Vcore... LOL
Did you ever get word back as to what happened ? Were you using badaxe 1378 bios by any chance ? seems Intel has removed 1378 from their download page.. leaving 1351 and lower bioses.
- Apoptosis
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yeah it was 1378 and i'm out a CPU... The board was dead and I think they fried a CPU trying to figure out what was wrong with it. I got a Rev 305 board now and an X6800 that can't even run at 400Mhz FSB at any multi. My E6300 will do 440 with ease...
Last edited by Apoptosis on Fri Oct 06, 2006 8:37 am, edited 1 time in total.
- eva2000
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Shame... IIRC you have a nice clocking cpu too
Yeah X6800 some seem to exhibit a 370-390fsb wall. Maybe try finding some E6600 L628B121 retail cpus and use D975XBX2
Yeah X6800 some seem to exhibit a 370-390fsb wall. Maybe try finding some E6600 L628B121 retail cpus and use D975XBX2
Last edited by eva2000 on Fri Oct 06, 2006 8:38 am, edited 1 time in total.
- dicecca112
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- dicecca112
- Site Admin
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- dicecca112
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its not gonna fit the board right so you should follow this
http://xtremesystems.org/forums/showthread.php?t=115252
All the removals I have seen, the time didn't stick to the core.
http://xtremesystems.org/forums/showthread.php?t=115252
All the removals I have seen, the time didn't stick to the core.