Problems? See this thread at archive.org.
It should work, as long as the voltage is the same. It will only draw the current needed up to the maximum rating, and since the new one is higher rather than lower it shouldn't cause an issue. However, you'd better check that the plugs are identical, the polarity is the same, and that the power supply you're using is a quality one. A poor power supply or plug can cause damage, especially if the ratings are incorrect (common on cheap third party models).
I'd still highly recommend only using official replacement adapters, as others can be problematic at best.
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Good question, no hands on yet so yeah...
The 7970M and 680M works so why shouldn't the 675M work?
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Maingear's eX-L 17
has anyone seen this laptop or know anything about it it looks like the Clevo W880CU & W870CU
& it dous 3d im thinking is it the Clevo W880CU with some diffrent motherbord fitted to it? & if that is so
whitsh one? its got sandy bridge in it by the looks of it.
i have emailed maingear but thay have not responded. this is it here:
http://www.techscreens.com/maingear...7-gaming-laptop-core-i7-2920xm-processor.html -
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Hello good citizens,
I bring word of an anomaly. My battery died a couple months ago. Just took it out now to see what's up, and.... well, don't know if it's all the "egg nog" I've been drinking, but the battery pack seems to have EXPANDED (?!) as soon as I took it out... and now it can't go back in! Look, I even took pictures (see? see?), but the "egg nog" could also be distorting my view of the picture, so... kindly interpret these strange images!
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Hey guys!
I tried to look for it but I had no definitive question.
I'm having a problem with my GTX280m because I'm not able to make DVI dual-link work. I found out that it is a 280m problem and now I'm looking to upgrade to a 5870m.
The question is, will Alienware's 5870m work in w870cu??
Thanks
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Have done the same thing. And pried the LiPo batteries loose from the connectors, briefly shorted one in the process, but no matter; a little smoke and they're environmentally friendly
. There are 3 3.7V 3900mAh units inside, its dimensions are roughly 100x50x7mm. Only one was 'leaking', but removed the others just the same. Manufacturer part nr. is Coslight CA7446102.
Could replace them for the fun of it, but the only comparable batteries I've found are still $14/piece. Still cheaper than a complete replacement for ~$150, but even when new these things were rather pro forma. The GPU is simply too much (no onboard gpu for backup, so the drain is constant), never got more than 45 minutes.
A self-supporting mini GPS tracker would make a good alternative for the empty casing. There's even a free connector next to the gpu fan connector, can charge the tracker's battery from that. -
Thought I'd make use of the still empty TV tuner slot (while waiting for some parts to install a new gpu). Didn't took that option when buying the laptop and, after some research, perhaps there's not a single owner with a working CATV port since the large resellers didn't actually offer the option as it was intended by Clevo.
Some old posts in this thread concerning the subject (all of them, in fact):
The Sager offer can be found here; which is an external USB tuner, so this would not have enabled the embedded CATV port. Nor would the Eurocom models; they offered the soon-to-be-forgotten Intel Turbo Memory (made superfluous by cheap ssd's). Although this would at least have used the slot ... poorly though, because of the interface, we'll get to that.
Anyway, this TV tuner was meant to be placed in the mini pcie slot you can access by removing the battery and a small metallic cover:
Ok, so far so good, but now things get a little tricky. While the form factor is mPCIe, the electrical interface Clevo has chosen to connect the slot is not PCIe x1 but USB 2.0:
This limits card options and available bandwidth to some 1/[SUB]4[/SUB]th that of PCIe. Hence making the Eurocom offer at that time a tad dubious. Today they do offer a TV tuner 'upgrade', but one using the ExpressCard slot ... a mite poor choice for a system offering such a potentially neat solution.
So to (belatedly) answer the questions quoted above;
- No, only an mpcie tuner card is needed.
- These do exist.
- Both digital and/or analogue tuners are available.
- Possibly there's not a singe laptop that has one.
- Every model/build can use one.
These are its (current?) compatible models and their supported signals (the first 3 are analogue, the others digital):
Bit hard to find, these things were meant to be embedded by system builders, not end-users. So most offers are pulled from old laptops/devices.Code:model# NTSC PAL SECAM DVB_T DVB_T2 ATSC/cQAM SBTVD DMB-TH A331 y y y - - - y y A373 - - - y - - - - H334 y y y y - y - - H335 - - - y - - - - H377 y y y - y - - -
If you don't care for a working CATV port, there's also the option for extra storage/backup; two SDXC cards of 64GB each (properly re-formatted) yields 128GB ssd capacity (over a poor usb 2.0 channel, but still ...). Or maybe a nice internal USB port for tinkering purposes or whatnot.
Haven't tested the sdxc (or usb) option as to whether this usb-over-pcie bus is bootable or not. This would make for a nice flashing/testing station. Or an additional OS. Would have to change boot order each time, but that's a small hindrance. Will try this when the gpu's working again.Meaker likes this. -
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With GTA V approaching, thought 'wth, let's find out what a +5 year old system can accomplish'. Prices for components should've gone down quite a lot, so it'd be a fairly cheap upgrade (though not quite the D800's range yet, of course
).
Proceeded to order the cheapest 7970M which, certainly enough, turned out to be a used Dell (= ex-Alienware). Did research and prepared for a blind flash; read the helpful guide :thumbsup:, got ATIFlash, VBE7 for voltage editing and sourced 11 different vbioses. Next were modded drivers and ultimate disappointment due to an incompatible EC (as reported here, here, here and here) ... aaaand ... this was all for naught.
Merely modded heatsink, booted without the usb (just to see what would happen) and presto; flawless victory.
So ... no blind flash required (its v22 is an Enduro bios though), benchmarks pass, temperatures report as expected and HMDI out works too. A W870CU's not a HM series, of course, but it's similarly a non-iGPU/non-Enduro system. So would have guessed that the same rules applied ... apparently not.
Some background on this specific Dell 7970M; the die was not marked "ENG" or "ES". The card itself has pcb-painted "v1.0" and "109-C42957-00B", as well as stock UEFI bios version "015.022.000.001.000000". The vbios's bit-identical to the one on MXM-Upgrade's report, added heatpads to the ICs on the back of the card. This bridges them thermally to the flimsy aluminium bracket thingy; may not be much, but it does help:
4.) Modding the heatsink; cut away the thin, upper part that's badly soldered to the main heatsink. This left a lot of ICs exposed, some of which certainly required cooling. Had some sinks left that were too tall and don't have a dremel, so used bolt cutter and an angle grinder instead (ahem) :
Same type as these ( before the 1200W power tool, obviously):
Anyway, hope this of some use; the ubiquitous Dells are a good $150 cheaper than the Clevo variety. Don't have much optimism for GTA V, of course, but who knows ... maybe a little oc combined with an overcharged fan would do wonders, still have 15℃ to spare (it's on 900MHz and -50mV currently).Last edited by a moderator: May 8, 2015 -
Mine has "AMD" too, unfortunately the well of Clevo 7970M's seems to have dried out, so it's bit hard to make a definite comparison. Although it's been claimed that one of the differences is in these four capacitors located between two rows of tall inductors:
And
another Clevo.
There are too many of these reports to dismiss them as a one-off garden shed job by an incompetent. But if these are truly Clevo's then they've never made 7970M's! If they had the labels and wiring on the pcb would've been their own design, but they're all bit-by-bit identical. So what they've done is buy up Dell lots and replaced Dell's lower profile capacitors with taller ones to make them match the heatsinks on the Clevo systems. As you may notice on my modding job; I've had to make three separate IC heatsinks because of this difference in height.
Still, that is one godawful soldering job they've done, a neanderthaler would've fared better ... I would have fared better ! Replaced a vbios chip the other day, and they're a lot smaller than this lot.
82℃ peak during 3DMark's Fire Strike.
That was after the undervolt and overclock, so there's some leeway left. Ordered a 920xm and got a SATA > dual mSATA adapter, am going to ditch the RAID1 data (work related) to the W230SS and do a rebuild of the W870CU and push it to its limit (GTA will need that, sadly). Also ordered two different fans; one a Maglev Sunon 5V/0.5A (=2.5W) and one a quite dubious no-brand, but it's rated 5V/0.55A. The current one's 2.5W, like the Sunon, only cheaper. -
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You're right, hadn't considered that; they're probably the weakest link on a further oc. Fortunately the 5870M has its eight vrams in the same location as the 7970M and my system came with the 3-heatpipe instead of the older 2-heatpipe model. So that's one 4-row taken care of, and 2 vrams are in line with the main/gpu's. That leaves two. Will add extra heatsinks on top of these for an additional buffer:
Ah! Didn't understand the overly complex mod at first, but of course; damn heatpipe's in the way! Nice once , just needed that 100% force to have made it work. And a
potentiometer mod would've given back control; dial to 100% only when gaming ...
Is that the one with an extended 3 rd heatpipe going in a curve towards the end? Can see why they've done that; it covers one more vram.
Yes, took that road at first, but the heatsink's actually two different parts soldered together; one's the main body and the second has the raised 'bumps'. But this last one's much thinner and upon cutting away part of it some sections came loose from the main heatsink. This was due to incomplete soldering. You can still see its remnant, as well as the small round pins that 'clicked' both parts together. So if the connection between them's not good, then neither is their heat transfer. And, being so thin, they were never proper 'sinks' to begin with either; too little mass. Used very thick, heavy sinks to compensate, this also offloads part of the workload of the main body; temps are actually lower than the 5870M (don't use raiser or separate laptop fans). -
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*** OFFICIAL Sager NP8760 / Clevo W870CU Owners Lounge ***
Discussion in 'Sager/Clevo Reviews & Owners' Lounges' started by Larry@LPC-Digital, Oct 8, 2009.
