Updates this week; or the current week of updates
Updates this week; or the current week of updates
I'm working on my CPU today.
I've purchased some 36 grit emery cloth to begin with. It seems to be the toughest sanding paper available, maybe even surpassing diamond files. I have a few old heatsinks nearby that look extremely rounded, and I plan to test the 36 grit on them to gauge the extent of the damage.
For medium grades, I have slightly used 80, 180, and 320 grit papers. Then I intend to jump significantly higher to 3000 grit for a smooth finish.
Based on what others have mentioned, about 95% of the polishing is usually completed at 400 grit on the first sheet, which typically takes around an hour; I’m hoping 36 grit will reduce that time considerably.
To wrap it up, I have some genuine silver plating solution ready to apply to the entire CPU waterblock. I’ll disassemble it and coat it with a shiny layer of silver. I’ll also polish it further using a very fine 7000 grit to eliminate any remaining residue.
I was considering an electrical method to remove scratches, but that experiment suggested I’d likely need to polish the metal thoroughly to eliminate even minor imperfections.
We’ve applied 'arctic silver' heat paste to our copper blocks; why not use real silver? I’m aiming for both surface and internal conductivity, hoping it will reduce the time needed.
It hasn’t exceeded a solid layer of MX-2 only by a single centimeter in benchmarks.
And I have a flat glass sheet nearby to ensure the finish isn’t curved or uneven.
http://m60i.imgup.net/silversink2685.jpg
edit: Here's a better more in focus snap
http://v40i.imgup.net/silverbloc793c.jpg
Ok so todays results got me up at the crack of dawn 'til the setting of the sun; I disassembled the loop, lapped the heatsink & waterblock and silvered them both with antiquax silver plating solution. .
The lapping process took about 2 hours for both the cpu and the block. I got a good coating on them and applied some arctic silver thermal grease.
Water temp. 30.1c Ambient temp 24.2 delta t of 5.9
http://g53i.imgup.net/pipes976d.jpg
edit: a better snap of my tubing; all my couplers are now like this
http://y55i.imgup.net/tubing905a.jpg
That is simply 10mm OD stuffed into 10mm ID pvc (12mm od) and clamped with a jubilee clip.
Other results are available for you:
I wasn’t able to achieve this before:
http://a02i.imgup.net/5100mhz992f.png
You’ll notice I only adjusted the vCore to 1.5v and it’s now stable at 5.1ghz without any thermal issues.
Lowering the vCores to 1.48 & 1.49 caused the system to freeze, so I had to raise it back up to reach a stable 5.1ghz.
I never went above 1.55v and would bring it down to the last known stable frequency of 4.9ghz. I haven’t tried 5ghz yet; I’ll test 5.1ghz to see if I can still play games on it. If I manage to prime95 it, I might consider going higher.
I previously succeeded with this:
http://m27i.imgup.net/moretortur599b.jpg
It seems the memory was set to 800mhz for testing.
For a backup setup I used an old copper jardineire 5 litres; I had to patch some holes using gorilla grip adhesive, and I needed modeling clay for the soldering because the solder would just fall through.
I invested more than necessary in learning this, but I believe if I’d done everything correctly from the start and worked efficiently, around £75 would have been sufficient.
http://t88i.imgup.net/cpuzbench9b9e.jpg
This gives me a quad-core processor that performs like an 8-core one.