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by Rsnubje
Mon Aug 11, 2014 6:34 pm
Forum: General discussion
Topic: 1500MHz lock?
Replies: 43
Views: 10406

Re: 1500MHz lock?

Best I could do for now is 1550MHz. I think my usb adapter was having a faulty cable because it fell out or went on when I shake it :P Will try tomorrow with a new cable. With the attached external power, 2.1V is max I can do. http://i.imgur.com/kERCOJxl.jpg http://i.imgur.com/4UlV95Ml.jpg http://i....
by Rsnubje
Fri Aug 08, 2014 3:05 pm
Forum: General discussion
Topic: 1500MHz lock?
Replies: 43
Views: 10406

Re: 1500MHz lock?

Got that now too. Probably going for new record in the weekend ;) If all works well that is.
by Rsnubje
Fri Aug 08, 2014 11:17 am
Forum: General discussion
Topic: 1500MHz lock?
Replies: 43
Views: 10406

Re: 1500MHz lock?

You can just replace the start.elf while in raspbian?
by Rsnubje
Fri Aug 08, 2014 7:18 am
Forum: General discussion
Topic: 1500MHz lock?
Replies: 43
Views: 10406

Re: 1500MHz lock?

Maybe a stupid question, but how do I use your file? I'm failry new to linux to be honest.
by Rsnubje
Wed Aug 06, 2014 5:43 pm
Forum: General discussion
Topic: 1500MHz lock?
Replies: 43
Views: 10406

Re: 1500MHz lock?

Nice work. Will try this as soon as I find some time to do it.
by Rsnubje
Wed Aug 06, 2014 4:05 pm
Forum: General discussion
Topic: 1500MHz lock?
Replies: 43
Views: 10406

Re: 1500MHz lock?

Might depend on what battery you intend to use. If it's some sort of LiPo battery it might work, because these have much more power than just an AA nimh cell or something alike. Just make sure the output is in the 1.0-2.0v range ;) But IMO it would be better to use a constant power source and not so...
by Rsnubje
Wed Aug 06, 2014 1:23 pm
Forum: General discussion
Topic: 1500MHz lock?
Replies: 43
Views: 10406

Re: 1500MHz lock?

When I was testing it, I hit the 1500MHz wall with just over 1.8v and was pretty stable at that point. The only thing that would make the system unstable were the RAM, Core and gpu clocks. This benchmark: http://hwbot.org/submission/2510494_rsnubje_hwbot_prime_broadcom_bcm2835_819.02_pps checks the ...
by Rsnubje
Wed Aug 06, 2014 6:55 am
Forum: General discussion
Topic: 1500MHz lock?
Replies: 43
Views: 10406

Re: 1500MHz lock?

Hi, Since I'm one of the few that actually tried this mod, let me help you with this. See below images(click to enlarge). I highlighted the areas that you need. For your external supply you can use the blue highlighted ground. Just make sure it's a solid supply with not to big of a vdroop. If you ne...
by Rsnubje
Thu Mar 06, 2014 1:05 pm
Forum: General discussion
Topic: 1500MHz lock?
Replies: 43
Views: 10406

Re: 1500MHz lock?

So that should be "current_limit_override=0x5A000020" right? Haven't tried this yet. I've seen some stories about bios_limit but i don't think this applies for the pi.
by Rsnubje
Thu Mar 06, 2014 10:36 am
Forum: General discussion
Topic: 1500MHz lock?
Replies: 43
Views: 10406

Re: 1500MHz lock?

Is it possible to use processor.ignore_pcc=1 for this? If so, where should I put it on raspbian?
by Rsnubje
Wed Feb 19, 2014 3:14 pm
Forum: General discussion
Topic: 1500MHz lock?
Replies: 43
Views: 10406

Re: 1500MHz lock?

I will check the real frequency, altough I believe it does really run at 1500MHz. Might be worth to try another OS?
Just have to say this, I'm pretty much a noob when it comes to using Linux, so I'm still learning to get along with it.

I will report back when I have checked the real frequency.
by Rsnubje
Wed Feb 19, 2014 11:29 am
Forum: General discussion
Topic: 1500MHz lock?
Replies: 43
Views: 10406

1500MHz lock?

Hi there, Currently I'm working on overclocking the Raspberry Pi (B revision) and I managed to get it to 1500MHz with a voltmod which allows me to apply any voltage I want. Getting to 1500Mhz was pretty easy, but even if i go only 1MHz above 1500MHz, it will not boot into OS. I'm pretty sure the ARM...

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