- Joined
- Aug 5, 2002
- Location
- Brisbane, Australia
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