Intel 4.5GHz & 5GHz LinX Stable Club

[newhit]

newhit: Still think your gflops is a bit low. Usually on my setup I get low gflops if vcore is a tad low, or some other process takes up to much cpu time.

Still too low ..........Not sure I can strip out any more dross . A lot better than it was though .

Nice run there Sniper, maybe you can put an SS on and go for LowFat's run .

[Sniper]

Still too low ..........Not sure I can strip out any more dross . A lot better than it was though .

Nice run there Sniper, maybe you can put an SS on and go for LowFat's run .

Well, 4.7+ ht on is not gone happen on water with my chip. But I'v had SS before, not doing that again.

LowFat's run is also with very low gflops, looks almost like throtling.

I quess it is time to go 32nm, just wish they didnt cost so much.

[SteveRo]

Well, 4.7+ ht on is not gone happen on water with my chip. But I'v had SS before, not doing that again.

LowFat's run is also with very low gflops, looks almost like throtling.

I quess it is time to go 32nm, just wish they didnt cost so much.

32nm is working well for me - look at #1 here - http://service.futuremark.com/search...ingsystem=-100

[Sniper]

Looks good SteveRo, nice hd setup too

[SteveRo]

Looks good SteveRo, nice hd setup too

Thanks - an extreme cooled 980 can beat that but only with a good storage array.

[ajaidev]

Good morning,

Had this i7-980 for about 12 hours now.
My first 980 submit to you.
I think I can go higher.
Cooled via chilled water - 2x boreas in series to an apogee xt block, mcp pump with xspc top.
Pcie at 115 - can this cause low gflops?

[IG]http://img405.imageshack.us/img405/6651/dsc03254j.jpg[/IG]

[IG]http://img340.imageshack.us/img340/81/xxxg.png[/IM]

Your Gflops are really low i got around 6x Gflops with 4.6Ghz, i dont think the PCIe is the culprit. In any case the voltage is quite nice

Try a higher clock and see where your Gflops go even if it means i will be taken out of my no. 2 position lol

[PiLsY]

Newhit's gflops looks bang on to me for 8x me and 16x uncore... Could add another 5-8 gflops by going to 2000mhz 8-9-8 and 20x uncore.

Glad I could help dude .

[Sniper]

Newhit's gflops looks bang on to me for 8x me and 16x uncore... Could add another 5-8 gflops by going to 2000mhz 8-9-8 and 20x uncore.

Glad I could help dude .

Yeah, I guess the different mp/bclk/timings etc can add up too the difference I see when I test linx gflops at the same speed.

[tool_462]

I'm peaking at 66.xx Gflops on the X5677 at 4.65Ghz, more clock = less Gflops and tighter RAM/faster RAM = less Gflops

I figured LinX would be a 100% linear scale with cores and clocks, but guess not

[SteveRo]

On my 980, if I drop Linx from using 4 to 1GB memory my gflops increases from 53.xx to 69.xx, seems like it should be decreasing not increasing?

[tool_462]

On my 980, if I drop Linx from using 4 to 1GB memory my gflops increases from 53.xx to 69.xx, seems like it should be decreasing not increasing?

Agreed. I'll give it a shot when I get home, no that Gflops matter all that much. I still love LinX to do a quick 10 pass test and if it passes that, I haven't had an OC fail at F@H that made 10 passes (fastest way to find a quick stable OC for me)

[PiLsY]

I find linx very sensitive to L3 cache speed. Higher uncore = much higher gflops. TRCD timing makes a big difference too.

[=[PULSAR]=]

I find linx very sensitive to L3 cache speed. Higher uncore = much higher gflops. TRCD timing makes a big difference too.

The 980x L3 cache also has a higher latency than quad cores. Which I think is where the decrease of gflops is coming from.

[tool_462]

I find linx very sensitive to L3 cache speed. Higher uncore = much higher gflops. TRCD timing makes a big difference too.

That could be, the 32nm Xeons seem to be locked at 20x uncore so can't crank it up too much.

[Sniper]

DDC, HK 3.0, PA120.3 + another 360, Ambient/Air intake temp 20.4.

[zalbard]

I've redone my LinX 20 run to show that my setup is functioning correctly.

Good job! That's an excellent run, I've updated your entry!

newhit: Still think your gflops is a bit low. Usually on my setup I get low gflops if vcore is a tad low, or some other process takes up to much cpu time.

66 is too low? Just fine if you ask me...

DDC, HK 3.0, PA120.3 + another 360, Ambient/Air intake temp 20.4.

Really awesome!
Nice chip and cooling!

[CryptiK]

Really nice Sniper, awesome board too holding 227 BCLK stable.

[PiLsY]

Fair play sniper, thats a sweet oc dude .

[Sniper]

Thanks guys. The mb is bclk modded and I think it could do up to 232 bclk in LinX.

[newhit]

Awesome, Sniper but.............

I think your Gflops is a bit low. Usually on my setup I get low gflops if Vcore is a tad low, or some other process takes up to much cpu time.

[Sniper]

I actually saw 69 gflops last night when trying for 4788, but it stopped with error after the 5 pass.

[newhit]

Have to ask Sniper,
You don't seem too keen on SS. I notice you talk from past experience. What is your dislike of it (I haven't been around for a while)? Also, is this "bclk mod" easy to do (I'm ok with a soldering iron)? What does it involve?
Not to try to get ahead of you of course

[zalbard]

Also, is this "bclk mod" easy to do (I'm ok with a soldering iron)? What does it involve?

http://www.xtremesystems.org/forums/...d.php?t=225264

[Sniper]

The bclk mod is for "old" GB X58 non A mb's wich is limited to max 103 pci bus without the mod.

I'v had 2 SS back in the good old Athlon XP/P4 days, a VapoChill and a Prom. Both worked ok for a while I guess, but there where several disadvanteges for me:
- They produce more nois than my water cooling setups.
- There's allways a risk of condensation.
- Greasy sockets, cpu's and mb's.

The last one is the worst. I like to test out different cpu's and mb's all the time, and with a SS all your parts will be greasy and full of goofy stuff.

You also need to refill and tune a SS to match your cpu's power draw for max performance.

I'm not saying a SS is bad, just not for me and my use.

Ohh, and please do

[SteveRo]

I actually saw 69 gflops last night when trying for 4788, but it stopped with error after the 5 pass.

I can do 69.xx gflops with the 980x but it has to be with 1GB memory used.
If I go to higher memory the gflps drop to 53.xx at 4GB, odd.
The proc seems to be doing fine otherwise - pcmark vantage numbers are very good.