2GB Geil Overclock poor :(

Devilman · 17 Dec 2006 at 13:14

Well, I got my E6300 etc.... yesterday, and after some tweaking, Ive got this far.....

However, it doesnt seem to matter what I do now, I cant get the ram stable much higher

I think the chip is good for more, as is the mobo (FSB-wise), but If I reduce CPU multi to 6 and change RAM multi to 2.5 (or higher) to get the Ram up at 950+ while the CPU and FSB are still well below their max.

Anyone got any suggestions?

ZX-10R · 17 Dec 2006 at 13:30

what voltage are you putting thought?

Devilman · 17 Dec 2006 at 15:07

Currently got it set to +0.3, so it should be at 2.1 which is what Geil spec for these modules I believe.

Have tried up to +0.4 but still seems the ram freak out past 900ish...

Have tried doing 950 (or thereabouts) with Ram multi at 2x 450 and 2.5x380 and it still reboots after a couple mins of Orthos (set to test ram only). Either that, or if I try to adjust the timings much at all from stock timings in the SPD, It just freaks totally and wont boot until I put them back =/

Nice Overclock still tho and on low Vcore / temp (Vcore fluctuates from 1.216 to 1.232 when loaded (both cores around 52c) and sits around 1.248 when idle (core temps around 38-40c)

Was just kinda hoping to see 1gig from the Geil, cus I think the chip and the mobo is actually good for seeing 3.5 from the CPU (28B E6300)

WJA96 · 17 Dec 2006 at 15:41

Unfortunately you can't guarantee anything over 400MHz - 450MHz is still a good clock though. That is one reason I have been getting into the idea of using cheaper RAM (OcUK PC6400 RAM with an E6400 processor) as that will give 3.2GHz without overclocking the RAM at all.

E6300's are extremely good clockers, but your RAM may have just run out of puff.

You are just running it at the stock voltage though - you could try giving it another +0.05 or +0.10 and seeing if that helps.

Devilman · 17 Dec 2006 at 15:50

Heh true...

So as default, my Geil ram is 2.1v and the board defaults to 1.8? so at +0.3 im just running at stock?

Whats the max acceptable for the ram? 2.3? 2.4? Just trying to get an idea of what I can go to, cus I really dont like all this "+x.xx volts" without knowing what the baseline voltage was to start with lol. Im guessing I should be able to go up to +0.5 with no problems tho, right? (should be around 2.3v by my guess)

WJA96 · 17 Dec 2006 at 16:01

Devilman said:
So as default, my Geil ram is 2.1v and the board defaults to 1.8? so at +0.3 im just running at stock?

Correctamundo.

Devilman said:
Whats the max acceptable for the ram? 2.3? 2.4? Just trying to get an idea of what I can go to, cus I really dont like all this "+x.xx volts" without knowing what the baseline voltage was to start with lol.

I was saying the same thing myself just a couple of hours ago actually

Devilman said:
Im guessing I should be able to go up to +0.5 with no problems tho, right? (should be around 2.3v by my guess)

The problem, as always, is heat. Can you actually touch the surface of the RAM heatspreader at the moment? If you can't then I would only just nudge it up a fraction - to +0.35 and see how far that takes you. Extra voltage = extra heat so you want as little as you can get away with really. If an extra 0.05 doesn't do it then try an extra 0.1, but if you still see no extra benefit then I would just go back. I'm running 1.8V rated RAM at 2.25V so I'm not a good example, but I'll be honest, I can afford to throw away £150 worth of RAM if I blow it up - can you? If you can then keep going! If not, then stop.

OC_A64 · 17 Dec 2006 at 17:03

Can you confirm mobo please?
vCore wise, 1.26 is REALLY pushing things. Increase to 1.3 and see if you can get any further. Rebooting is *usually* caused by lack of voltage somewhere and at a guess its probably vCore.

WJA96 · 17 Dec 2006 at 17:33

OC_A64 said:
Can you confirm mobo please?
vCore wise, 1.26 is REALLY pushing things. Increase to 1.3 and see if you can get any further. Rebooting is *usually* caused by lack of voltage somewhere and at a guess its probably vCore.

I think he's just reading the voltages off CPUz - I hope he's got the machine set to [Normal] as otherwise I would agree that his voltages are very low. But CPUz tends to read low for me anyway.

OC_A64 · 17 Dec 2006 at 18:22

WJA96 said:
I think he's just reading the voltages off CPUz - I hope he's got the machine set to [Normal] as otherwise I would agree that his voltages are very low. But CPUz tends to read low for me anyway.

Good call mate.

Devilman · 17 Dec 2006 at 18:27

OC_A64 said:
Can you confirm mobo please?
vCore wise, 1.26 is REALLY pushing things. Increase to 1.3 and see if you can get any further. Rebooting is *usually* caused by lack of voltage somewhere and at a guess its probably vCore.

Mobo is DS3, yeh im reading Vcore from CPU-Z, whats a better alternative to monitor voltages? MBM doesnt support the DS3

Rebooting is indeed usually an issue of low voltage, but as I have said, The reboots only come when ram is under test and they do not occur if I change the FSB / Ram to something where the CPU is actually higher speed, but ram is slower.

WJA96 · 17 Dec 2006 at 19:10

I'd leave the CPU on normal and have you tried upping the MCH by [+0.1] as that is widely recommended. It does nothing for my own overclocking, but it is widely recommended.

WJA96 · 17 Dec 2006 at 19:11

Sorry - to answer the other question - there isn't any decent tool for reading the voltages. The 'pro' overclockers do it with a multimeter of course!

caksey · 17 Dec 2006 at 19:45

I got a 2GB Geil kit last monday and can only get 445 @ 2.2v and 456 @ 2.3v with 5-5-5-15 timings. Was hoping for a bit more too, CPU (6600) now at 3.2Ghz with no extra voltage and max load temp of 54c, 33c idle.

Have left it at 445 @ 2.2v as im worried 2.3v may be too much, especially for such a small gain.

WJA96 · 17 Dec 2006 at 20:54

That's still a 10% overclock which you can't complain about, surely? Yes, apparently other people can make them go better than that apparently, but you're are still pretty decent.

I am beginning to wonder if OcUK are selecting RAM though as Gibbo has posted elsewhere that they build 5 or so system a week and they always overclock them to 920MHz with 4-4-4-12 timings. If they can do that randomly, then fine, if they can't then they may be selecting the best ones and putting the ones that won't hit the super-high clocks with tight timings back into stock? Then you could put those ones on Offer of The Week. Unfortunately, you could never prove it and even if they were doing that they would still be fine legally as the RAM performs to quoted specification.

Kozmo · 18 Dec 2006 at 12:50

WJA96 said:
I am beginning to wonder OCUK may be selecting the best ones and putting the ones that won't hit the super-high clocks with tight timings back into stock? Then put those ones on Offer of The Week.

I ****** hope not!!! :mad:

I bought OEM chip and GEIL ram which barely got off stock, was kinda ****** sicne I spent £1800 on the system, specifically the extra £££ for good overclock parts. If it happens again I'll be shopping elsewhere.

WJA96 · 18 Dec 2006 at 13:50

Kozmo said:
I ****** hope not!!!

I bought OEM chip and GEIL ram which barely got off stock, was kinda ****** sicne I spent £1800 on the system, specifically the extra £££ for good overclock parts. If it happens again I'll be shopping elsewhere.

But if you bought a 6300 and the Geil then it must have done at least 2.8GHz, surely?

WJA96 · 18 Dec 2006 at 13:52

Plus Gibbo has responded and he says the kits always all do 920MHz when they build them.

Devilman · 18 Dec 2006 at 16:09

Yup, Ive Set the McH and all the other settings in the DS3 guide (Except I didnt turn the CPU Vcore up as high becuase frankly, my cpu will go faster without failing any tests on less voltage)

Ive tried DDR voltage up to +0.5 (so about 2.3v) and no matter what, ram doesnt seem to want to go much past 900. Tried running on a 2.5x ram multiplier and lower FSB and CPU clocks aswell to rule out other possibilities for instability.

Havent checked to see how hot its getting (to the touch) yet when running, barely get a chance tbh... system remains 100% stable with the ram at 900 (using 2x multi and 450FSB) with as little as 2.1v in it, but go past about 920 and it just reboots within about 10 seconds of starting up Orthos on a ram test (however itll usually run a CPU test indefinatly)

Havent tried going really loose on the timings yet, stayed at 5-5-5-18, im just surprised how quickly these modules seem to "hit a wall" and go from working 100% stable at lower voltage, to rebooting the PC within 10 seconds of Orthos even with higher voltage, when increased by another 20Mhz =/

I may try going even lower on the FSB and using the 3x ram multiplier just to see if I can get past this, as I reckon the CPU (and quite possibly the motherboard) will go past 450 FSB with ease... Whats the likelyhood of other ram multipliers being implimented in a bios update? perhaps motherboard manurfacturers will start to make them with multi's lower than 2x, as it seems many people are in the same position as me and this would allow people to run E6300's at very high speeds without requiring PC8000 or higher.

I think with my E6300 if I could use a 1.5x Multi (if they could impliment one) I could shoot for over 500 FSB, allowing to keep my ram at 750 or thereabouts, while achieving 3.5gig from the CPU (I honestly do believe this is possible with my 28B E6300, as I have seen 100% stable CPU tests with Vcore showing as just 1.21-1.32.

FreeStream · 18 Dec 2006 at 16:53

My set don't do a mhz higher than 444 @ 2.15V 4-4-4-12, 5-5-5-15 etc or more volts do sod all.

Lucky I got a E6600 lol

WJA96 · 18 Dec 2006 at 17:27

Concorde Rules said:
My set don't do a mhz higher than 444 @ 2.15V 4-4-4-12, 5-5-5-15 etc or more volts do sod all.

Lucky I got a E6600 lol

Well, Gibbo is on record as saying they haven't had a set in store that won't do 900MHz+ rock solid stable, so it must be something we're doing.