M4700 Owners Thread

Looks like I may have an HP 8570W with the Dreamcolor panel passing through my office for a few days. Trying to get an M4700 with IPS to compare it to. Looks like we might have a good old fashioned mobile workstation shootout.

 

What is the screen they use in that?

 

LG. Likely the same as Dell.

HP likely still uses an 8bit hardware device to switch gamuts. Dell is all 10bit via software.

 

Ooh, now that should prove interesting!

Bokeh - I have another question for you about your RAM.


My 16GB of Kingston HyperX PnP 1866 arrived today, and I just put it in. It seems to work okay - it passes the Dell onboard diagnostics and Memtest86+, CPU-Z reports it identically to yours on the memory page as 931.1MHz 1:7 Dual Channel DDR3 11.0-11-11-32 2T correctly. Windows Experience Index has gone from 7.8 to 7.9, Memory Bandwidth in SiSoft Sandra has gone from 20.51GB/s to 24.39GB/s, and memory latency from 26.0ns to 23.7ns.

However, the modules I have do not have any metal heat spreader like I was expecting, instead just a large HyperX sticker & a hologram on the back. They also report differently in HWiNfO64 as "PC3-14200 Kingston KHX1866C11S3", while yours report as "PC3-14900 Kingston XXP4XH-HYB", and have no mention of enthusiast or extreme profiles like yours. I did however find someone on this forum here who bought the RAM a year ago and has it report as PC3-14200 as well, however it reports as "9905428-048.A00LF" in the second picture, whereas mine just says "KHX1866C11S3/4G".

Rather worryingly, they also appear identical in packaging to the 5 pictures posted in the comments on this page here by "mehmet" as 9905428-112.A00LF, who got a reply of "I showed these to our local Kingston rep and he said that these are definitely NOT authentic. You should take them back to the store or contact the local Kingston Office in your country. They will work with you to come up with a solution. The behaviour you described is not consistent with how PnP works on Sandy Bridge and the heatsinks are supposed to be metal. The ones you have are definitely not authentic Kingston HyperX PnP. Sorry to break the news to you." Other photos that I can find of authentic RAM for example here say 9905428-048.A00LF.

I've given Kingston a call, they said that I should email in some photos, and I'm waiting for their reply. Even if it works at the right speed & has no issues, I'd still prefer not to use not authentic RAM. My question is: Bokeh, is there any particular reason why your RAM reports as XXP4XH-HYB and at PC3-14900?

 

My guess is that Dell orders the memory from the OEMs with very specific specs. I am assuming that the Kingston ram in the M6700 was specific to Dell's requirements. The M6600 that I got as a very early model also had Kingston RAM.

Did you order your ram from a reputable place? Sounds almost like someone flashed it to make it run faster.

 

Well, I thought that they seemed legitimate enough to me, but I'll wait for a reply from Kingston before I name the vendor.

I really don't know what to make of it, to be honest. At the end of the day, they do work without error at the full speed with the right timings. The SPD is completely different to yours, but if yours is Dell OEM, then that at least clears that up. If Kingston confirms this is just some different revision code without the metal heat spreader, then that's not something I care about in the slightest.

Edit: Just to show the main memory page of HWiNFO64:

 

Question about the express slot on this, looking around I have found that the south bridge is an Intel ID1E55 which I have been unable to find anything about on intels or dells site. Also a discrepancy in the north bridge as well, as the QM77 only supports pci-e2, how are they using a pci-e3 card with this as info on amd's m4000 is just as sparse(is it really pcie3?)? Which finally leads up to, is there any way that one you guys could see if the express slot is wired up to be pcie3 or pcie2?

Thanks for your time

 

According to HWiNFO64 under "Bus", there is a PCI-E 3.0 x16 link listed as "Intel Ivy Bridge-DT PCIe Graphics Root Port", and 5x PCI-E 2.0 x1 links from the Intel Panther Point PCH. One of those links goes to the Intel Wifi Card, and one of them goes to the O2Micro Firewire & O2Micro MMC/SD Controller. Where the other 3 go, I'm afraid I haven't a clue - I don't have any PCI-E expresscards to test for you, but I daresay one of them is the 54mm expresscard socket. As for the other details, according intel there is a PCI-E 3.0 lane straight from the CPU itself, and as far as I was aware, the PCH was the combination of the southbridge & northbridge? I hope that's of help to you.

 

As a follow-up, Kingston Europe confirmed to me that 9905428-112.A00LF is indeed a legitimate set of 8GB 1866Mhz PnP HyperX, and that it indeed does not come with a metal heat spreader. Frankly, that's not something I will begin to worry about.

I do remain rather curious as to what Bokeh's Dell OEM RAM is, though. From the fact that it has Enthusiast & Extreme XMP profiles, it clearly isn't the stock 1866Mhz PnP stuff which is SPD only. That one may be a mystery - the only other reference I can find about XXP4XH-HYB is on the Sandra benchmark website from a pair of AlienWare (Dell) M18xR2 laptops.

When I get my spectro back, I will probably do a mini review of the model. I'm evaluating it with consideration to buying 5 more, so it may help for me to write down my thoughts so to speak.

 

The pci-e lanes for the graphics card are directly connected to the CPU in Sandy Bridge and Ivy bridge if i'm not mistaken, the PCH handles the rest of the pci-e lanes.